Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.340
Dr Eva Zopf, Dr Madeleine Ratcliffe, Prof Meinir Krishnasamy, Amruta Nandi, Dr Evelyn Parr, Peter Martin, A/Prof Prue Cormie, Prof Luc J.C. van Loon, Kelcey Bland
People with advanced cancer and cachexia experience significant body weight loss, impairing physical function and lowering quality of life (QOL). Effective, evidence-based treatments for cancer cachexia are lacking, leaving patients with unmet needs. Exercise holds promise to improve patient QOL. However, information on patients’ experiences of exercise, including their ability to cope with structured exercise, is limited. The aim of this qualitative study was to explore patient experiences completing a structured, supervised exercise program for people with cachexia due to advanced cancer. Semi-structured interviews were conducted with participants enrolled in a phase II feasibility, randomized controlled trial to explore their experiences of an 8-week virtually supervised exercise program delivered via videoconference technology. Interviews were analysed using reflexive thematic analysis. Seventeen participants completed interviews (female n = 9, 53%). Main interview themes included: 1) Deciding to exercise involves balancing concerns and expectations, 2) The exercise program is a positive experience, and 3) Moving forward after the exercise program. While some participants initially held doubts about their physical capabilities and exercise safety, most wanted to exercise to enhance their wellbeing. Participants described the exercise program as a positive experience, offering diverse benefits. Some would have preferred in-person exercise, but all agreed the virtual format increased exercise convenience. Participants emphasized the need to extend the program to others in similar circumstances. They underscored the necessity and desire for ongoing support to sustain their new exercise habits. Based on patient experiences, virtually supervised exercise programming appears to be feasible and meaningful to people with advanced cancer and cachexia.
{"title":"PATIENT EXPERIENCES OF A VIRTUALLY SUPERVISED EXERCISE PROGRAM FOR ADULTS WITH ADVANCED CANCER AND CACHEXIA – A QUALITATIVE STUDY","authors":"Dr Eva Zopf, Dr Madeleine Ratcliffe, Prof Meinir Krishnasamy, Amruta Nandi, Dr Evelyn Parr, Peter Martin, A/Prof Prue Cormie, Prof Luc J.C. van Loon, Kelcey Bland","doi":"10.31189/2165-7629-13-s2.340","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.340","url":null,"abstract":"\u0000 \u0000 People with advanced cancer and cachexia experience significant body weight loss, impairing physical function and lowering quality of life (QOL). Effective, evidence-based treatments for cancer cachexia are lacking, leaving patients with unmet needs. Exercise holds promise to improve patient QOL. However, information on patients’ experiences of exercise, including their ability to cope with structured exercise, is limited. The aim of this qualitative study was to explore patient experiences completing a structured, supervised exercise program for people with cachexia due to advanced cancer.\u0000 \u0000 \u0000 \u0000 Semi-structured interviews were conducted with participants enrolled in a phase II feasibility, randomized controlled trial to explore their experiences of an 8-week virtually supervised exercise program delivered via videoconference technology. Interviews were analysed using reflexive thematic analysis.\u0000 \u0000 \u0000 \u0000 Seventeen participants completed interviews (female n = 9, 53%). Main interview themes included: 1) Deciding to exercise involves balancing concerns and expectations, 2) The exercise program is a positive experience, and 3) Moving forward after the exercise program. While some participants initially held doubts about their physical capabilities and exercise safety, most wanted to exercise to enhance their wellbeing. Participants described the exercise program as a positive experience, offering diverse benefits. Some would have preferred in-person exercise, but all agreed the virtual format increased exercise convenience. Participants emphasized the need to extend the program to others in similar circumstances. They underscored the necessity and desire for ongoing support to sustain their new exercise habits.\u0000 \u0000 \u0000 \u0000 Based on patient experiences, virtually supervised exercise programming appears to be feasible and meaningful to people with advanced cancer and cachexia.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141041316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.478
Associate Professor Annette Raynor, Ms Sally Casson, Ms Stacey Scott, Ms Jennifer Grieve, Dr Lauren Fortington
Supporting people with Parkinson’s Disease to remain active when living in residential aged care (RAC) is assumed to have benefits, such as reducing falls risk, improving ability to transfer independently, and reducing time spent being sedentary. However, many RAC-facilities are under-resourced making it difficult for staff to support residents with exercise. Accredited exercise physiologists (AEP) enable residents to improve or maintain movement through exercise. The aim of this study was to establish feasibility and value of AEP-services for people with Parkinson’s Disease in RAC. A 12-week AEP-led exercise program was delivered at multiple RAC-sites across Perth. An individualised exercise plan was designed for each participant, comprising 2 x 50-minute supervised group sessions per week, together with a 15-minute unsupervised morning program. Baseline and follow-up testing was undertaken by the AEP, inclusive of balance (mini-Balance-Evaluation-System-Test (miniBESTest)), mobility (2-minute-walk-distance, Actigraph), fatigue (PD fatigue scale) and quality of life. Descriptive analysis will be presented, reflecting the total hours of AEP-training provided, room attendance records from RAC-staff, and changes in pre-post balance, mobility, falls, quality of life, depression, behaviour, and fatigue. To date, five participants have enrolled (3 women; 2 men) (recruitment is ongoing). Individual results for baseline testing showed the range of abilities and challenges for these participants (Mini-BESTest range of 5-16 and 2-minute walk distance of range 0-61). Not all tests could be completed by all participants. Post-test and change scores will be presented. Due to the clinical heterogeneity of the disease, the AEP is required to prescribe according to each individual needs whilst maintaining the fidelity of the exercise intervention. Challenges have been presented with conducting research in this environment including recruitment of participants due to level of cognition, conflicts with participant scheduling, operational needs of the facility and facility closures (Covid- and gastro-outbreak).
{"title":"A LITTLE BIT OF EXERCISE GOES A LONG WAY – INCREASING INDEPENDENCE OF AGED CARE RESIDENTS WITH PARKINSON’S DISEASE","authors":"Associate Professor Annette Raynor, Ms Sally Casson, Ms Stacey Scott, Ms Jennifer Grieve, Dr Lauren Fortington","doi":"10.31189/2165-7629-13-s2.478","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.478","url":null,"abstract":"\u0000 \u0000 Supporting people with Parkinson’s Disease to remain active when living in residential aged care (RAC) is assumed to have benefits, such as reducing falls risk, improving ability to transfer independently, and reducing time spent being sedentary. However, many RAC-facilities are under-resourced making it difficult for staff to support residents with exercise. Accredited exercise physiologists (AEP) enable residents to improve or maintain movement through exercise. The aim of this study was to establish feasibility and value of AEP-services for people with Parkinson’s Disease in RAC.\u0000 \u0000 \u0000 \u0000 A 12-week AEP-led exercise program was delivered at multiple RAC-sites across Perth. An individualised exercise plan was designed for each participant, comprising 2 x 50-minute supervised group sessions per week, together with a 15-minute unsupervised morning program. Baseline and follow-up testing was undertaken by the AEP, inclusive of balance (mini-Balance-Evaluation-System-Test (miniBESTest)), mobility (2-minute-walk-distance, Actigraph), fatigue (PD fatigue scale) and quality of life. Descriptive analysis will be presented, reflecting the total hours of AEP-training provided, room attendance records from RAC-staff, and changes in pre-post balance, mobility, falls, quality of life, depression, behaviour, and fatigue.\u0000 \u0000 \u0000 \u0000 To date, five participants have enrolled (3 women; 2 men) (recruitment is ongoing). Individual results for baseline testing showed the range of abilities and challenges for these participants (Mini-BESTest range of 5-16 and 2-minute walk distance of range 0-61). Not all tests could be completed by all participants. Post-test and change scores will be presented.\u0000 \u0000 \u0000 \u0000 Due to the clinical heterogeneity of the disease, the AEP is required to prescribe according to each individual needs whilst maintaining the fidelity of the exercise intervention. Challenges have been presented with conducting research in this environment including recruitment of participants due to level of cognition, conflicts with participant scheduling, operational needs of the facility and facility closures (Covid- and gastro-outbreak).\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141025900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.465
Dr Elizabeth Machan (Cayanan), Mr Fraser Lowrie, A/Prof Christopher Gordon, A/Prof Craig Phillips, Professor Brendon Yee
Obesity is a major comorbidity of Obstructive Sleep Apnea (OSA), contributing to 58% of moderate to severe cases in adults. Very low energy diets (VLED) are effective for rapidly reducing weight however are associated with a greater fat free mass reduction compared to other energy restricted diets. Exercise may protect against this and has been shown to improve apnoea hypopnea index (AHI) independently of weight loss. We aimed to assess the feasibility and tolerability of rapid weight loss induced by VLED with or without high-intensity functional exercise in overweight and obese men with OSA. This two-arm open-label pilot randomised trial included 20 participants with a BMI of ≥27kg/m2 and moderate to severe OSA. Patients were randomised to VLED-only (VO) or VLED plus exercise (VEX) for 12-weeks. Both groups followed a VLED providing <800kcal/day for 8 weeks, followed by a 4-week refeeding period. The VEX group also participated in supervised high-intensity functional exercise training consisting of resistance and aerobic training of up to 5 days per week. A total weight loss of -14.5kg [95%CI -17.5 to -11.5] and -9.3kg FM [95%CI -11.0 to -7.6] was achieved (measured by DEXA). Fat-free mass (FFM) reduction occurred (-3.9kg [95%CI -5.5 to -2.3]), with a trend towards preservation in the VEX group. The VO group reduced AHI by 42.9%, moving from severe to moderate OSA. The VEX group’s AHI change (-32.6%) approached but did not reach the moderate category post-intervention. The VLED, with or without exercise, proved feasible and well-tolerated and demonstrated positive outcomes in body composition and AHI. The VEX group suggested a potential trend in preserving FFM compared to the VO group. These results are promising, indicating the need for a larger, definitive trial to confirm these findings and explore the impact of exercise on FFM preservation in this population.
{"title":"DOES EXERCISE PRESERVE FAT FREE MASS DURING A VERY LOW ENERGY DIET IN PATIENTS WITH OBSTRUCTIVE SLEEP APNEA?","authors":"Dr Elizabeth Machan (Cayanan), Mr Fraser Lowrie, A/Prof Christopher Gordon, A/Prof Craig Phillips, Professor Brendon Yee","doi":"10.31189/2165-7629-13-s2.465","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.465","url":null,"abstract":"\u0000 \u0000 Obesity is a major comorbidity of Obstructive Sleep Apnea (OSA), contributing to 58% of moderate to severe cases in adults. Very low energy diets (VLED) are effective for rapidly reducing weight however are associated with a greater fat free mass reduction compared to other energy restricted diets. Exercise may protect against this and has been shown to improve apnoea hypopnea index (AHI) independently of weight loss. We aimed to assess the feasibility and tolerability of rapid weight loss induced by VLED with or without high-intensity functional exercise in overweight and obese men with OSA.\u0000 \u0000 \u0000 \u0000 This two-arm open-label pilot randomised trial included 20 participants with a BMI of ≥27kg/m2 and moderate to severe OSA. Patients were randomised to VLED-only (VO) or VLED plus exercise (VEX) for 12-weeks. Both groups followed a VLED providing <800kcal/day for 8 weeks, followed by a 4-week refeeding period. The VEX group also participated in supervised high-intensity functional exercise training consisting of resistance and aerobic training of up to 5 days per week.\u0000 \u0000 \u0000 \u0000 A total weight loss of -14.5kg [95%CI -17.5 to -11.5] and -9.3kg FM [95%CI -11.0 to -7.6] was achieved (measured by DEXA). Fat-free mass (FFM) reduction occurred (-3.9kg [95%CI -5.5 to -2.3]), with a trend towards preservation in the VEX group. The VO group reduced AHI by 42.9%, moving from severe to moderate OSA. The VEX group’s AHI change (-32.6%) approached but did not reach the moderate category post-intervention.\u0000 \u0000 \u0000 \u0000 The VLED, with or without exercise, proved feasible and well-tolerated and demonstrated positive outcomes in body composition and AHI. The VEX group suggested a potential trend in preserving FFM compared to the VO group. These results are promising, indicating the need for a larger, definitive trial to confirm these findings and explore the impact of exercise on FFM preservation in this population.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141037303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.376
Ms Rebecca Turnbull, Mr Dylan Perera, Dr Hazel Heng, Associate Professor Adam Semciw
High-intensity interval training (HIIT) is safe and more effective than moderate-intensity continuous training for improving cardiorespiratory fitness in adults with cardiac disease. Home-based delivery of cardiac rehabilitation has been introduced to increase the uptake and participation of programs. The aim of this systematic review was to investigate the safety, efficacy, and implementation of home-based HIIT programs for patients with cardiac disease. A systematic review of the literature was conducted in three electronic databases (MEDLINE, CINAHL and EMBASE) before 2nd October 2023. Studies were included if they were written in English, peer-reviewed and compared home-based HIIT to other centre-based or home-based exercise interventions. A secondary analysis investigating intervention safety, efficacy and implementation was conducted using the Reach, Effectiveness, Adoption, Implementation and Maintenance (RE-AIM) framework. Five studies, involving 153 participants (62 for home-based HIIT and 91 for other home-based or centre-based exercise interventions) were included in the analysis. There were no differences in functional capacity or quality of life (QOL) between home-based HIIT and other centre-based or home-based exercise interventions (p > 0.05). Across all the studies, the reporting rates were highest for program effectiveness (75%) and adoption (75%), followed by reach (70%), implementation (40%), and maintenance (10%). Adverse events were reported during the home-based HIIT intervention in two studies (3%). Participant attrition within home-based HIIT interventions was 8-12%. In studies where adherence to the home-based HIIT protocol was reported, this ranged between 36% and 85%. Home-based HIIT resulted in similar effects in functional capacity and QOL as other centre-based and home-based exercise interventions for patients with cardiac disease. HIIT in the home appears to be safe and effective, however adherence to the protocol varies. Further high-quality studies are needed to inform best practices for prescribing HIIT in the home.
{"title":"SAFETY, EFFICACY, AND IMPLEMENTATION OF HOME-BASED HIGH-INTENSITY INTERVAL TRAINING FOR PATIENTS WITH CARDIAC DISEASE: A SYSTEMATIC REVIEW","authors":"Ms Rebecca Turnbull, Mr Dylan Perera, Dr Hazel Heng, Associate Professor Adam Semciw","doi":"10.31189/2165-7629-13-s2.376","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.376","url":null,"abstract":"\u0000 \u0000 High-intensity interval training (HIIT) is safe and more effective than moderate-intensity continuous training for improving cardiorespiratory fitness in adults with cardiac disease. Home-based delivery of cardiac rehabilitation has been introduced to increase the uptake and participation of programs. The aim of this systematic review was to investigate the safety, efficacy, and implementation of home-based HIIT programs for patients with cardiac disease.\u0000 \u0000 \u0000 \u0000 A systematic review of the literature was conducted in three electronic databases (MEDLINE, CINAHL and EMBASE) before 2nd October 2023. Studies were included if they were written in English, peer-reviewed and compared home-based HIIT to other centre-based or home-based exercise interventions. A secondary analysis investigating intervention safety, efficacy and implementation was conducted using the Reach, Effectiveness, Adoption, Implementation and Maintenance (RE-AIM) framework.\u0000 \u0000 \u0000 \u0000 Five studies, involving 153 participants (62 for home-based HIIT and 91 for other home-based or centre-based exercise interventions) were included in the analysis. There were no differences in functional capacity or quality of life (QOL) between home-based HIIT and other centre-based or home-based exercise interventions (p > 0.05). Across all the studies, the reporting rates were highest for program effectiveness (75%) and adoption (75%), followed by reach (70%), implementation (40%), and maintenance (10%). Adverse events were reported during the home-based HIIT intervention in two studies (3%). Participant attrition within home-based HIIT interventions was 8-12%. In studies where adherence to the home-based HIIT protocol was reported, this ranged between 36% and 85%.\u0000 \u0000 \u0000 \u0000 Home-based HIIT resulted in similar effects in functional capacity and QOL as other centre-based and home-based exercise interventions for patients with cardiac disease. HIIT in the home appears to be safe and effective, however adherence to the protocol varies. Further high-quality studies are needed to inform best practices for prescribing HIIT in the home.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141041077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.408
Mr Jesse Criddle, Mr Andrew Haynes, Mr Howard H. Carter, Ms Julie Collis, Ms Kristanti Wigati, Ms Juliene Goncalves Costa Dechichi, Mr Joao Carlos Loacatelli, Prof Robert McLaughlin, Daniel Green
Previous field studies of exercise undertaken in hot conditions reported dissociation between heat-related symptoms and body core temperature (Tc) elevation. This prompted us to examine physiological mechanisms underpinning responses to exertional heat exposure in a controlled laboratory experiment. Thirty-eight apparently healthy participants had body composition (DEXA) and fitness (V̇O2peak) measured in a preliminary visit. Tc, heart rate (HR), exercise intensity (V̇O2) and echocardiographic measures of end-diastolic volume (EDV), stroke volume (SV) and cardiac output (Q̇) were measured at rest and at 30-minute intervals throughout a two-hour walk (5km/h and 2% gradient) in a climate-controlled chamber (40⸰C and 50% relative-humidity). Twenty-seven participants completed the experiment (Completers; Com), 7 were stopped due to Tc exceeding 39⸰C (Hyperthermics; Hyp). Four participants did not complete the protocol due to adverse symptoms and were excluded from this analysis. Hyp had significantly greater Tc at 60-minutes (38.6±0.5⸰C vs. 38.0±0.3⸰C; P=<0.001) and 90-minutes (39.0±0.3⸰C vs. 38.3±0.3⸰C; P=<0.001) than Com. Baseline V̇O2peak (ml.kg-1.min-1) did not differ between Hyp and Com (P=0.248). Whilst body weight and lean body mass did not significantly differ between Hyp and Com, visceral adipose tissue (VAT) volume (463.2±194.3cm3 vs. 259.9±284.4cm3 P=0.014) and mass (437.0±183.1g vs. 245.2±268.2g P=0.013) were significantly greater in Hyp vs Com. In Hyp, HR change from baseline was greater at 60-minutes (Δ57±15bpm vs. Δ36±18bpm; P=0.01) and 90-minutes (Δ63±20bpm vs. Δ42±19bpm; P=0.017), whilst change in EDV (Δ-22.7±11.4ml vs. Δ-6.92±11.2ml; P=0.016) and SV (Δ-19.4±6.1ml vs. Δ-0.7±7.5ml; P=<0.001) were significantly reduced in Hyp compared to Com. During walking in the heat, subjects who became hyperthermic had significantly higher baseline visceral fat mass and early signs of exaggerated haemodynamic burden during exertional heat exposure. This study has implications for the identification of appropriate variables for establishing safe work limits during heat exposure in military and work-related contexts.
以往对高温条件下运动的实地研究报告称，热相关症状与身体核心温度（Tc）升高之间并无关联。这促使我们在一项受控实验室实验中，研究了支撑运动性热暴露反应的生理机制。 38 名表面健康的参与者在初步访问中测量了身体成分（DEXA）和体能（V̇O2peak）。在气候控制室（40⸰C，相对湿度为 50%）中进行了两小时的步行（时速 5 公里，坡度 2%），在休息时和每隔 30 分钟测量一次 Tc、心率（HR）、运动强度（VO2）以及舒张末期容积（EDV）、每搏量（SV）和心输出量（Q）等超声心动图测量指标。 27 名参与者完成了实验（Completters；Com），7 名参与者因 Tc 超过 39⸰C（Hyperthermics；Hyp）而停止实验。有四名参与者因出现不良症状而未完成实验，不在分析之列。60分钟（38.6±0.5⸰C vs. 38.0±0.3⸰C；P=<0.001）和90分钟（39.0±0.3⸰C vs. 38.3±0.3⸰C；P=<0.001）时，Hyp的Tc明显高于Com。Hyp 和 Com 的基线 V̇O2peak（ml.kg-1.min-1）没有差异（P=0.248）。虽然体重和瘦体重在 Hyp 和 Com 之间没有显著差异，但内脏脂肪组织（VAT）体积（463.2±194.3 立方厘米 vs. 259.9±284.4 立方厘米，P=0.014）和质量（437.0±183.1 克 vs. 245.2±268.2 克，P=0.013）在 Hyp 和 Com 之间显著增加。在 Hyp 中，60 分钟（Δ57±15bpm vs. Δ36±18bpm；P=0.01）和 90 分钟（Δ63±20bpm vs. Δ42±19bpm；P=0.017），而与Com相比，Hyp的EDV变化（Δ-22.7±11.4ml vs. Δ-6.92±11.2ml；P=0.016）和SV变化（Δ-19.4±6.1ml vs. Δ-0.7±7.5ml；P=<0.001）显著减少。 在高温下行走时，出现高热的受试者的基线内脏脂肪量明显较高，并且在用力受热时会出现血流动力学负担加重的早期迹象。这项研究有助于确定适当的变量，以便在军事和工作环境中确定热暴露期间的安全工作限制。
{"title":"DETERMINANTS OF PHYSIOLOGICAL RESPONSE TO EXERTIONAL HEAT STRESS IN HUMANS","authors":"Mr Jesse Criddle, Mr Andrew Haynes, Mr Howard H. Carter, Ms Julie Collis, Ms Kristanti Wigati, Ms Juliene Goncalves Costa Dechichi, Mr Joao Carlos Loacatelli, Prof Robert McLaughlin, Daniel Green","doi":"10.31189/2165-7629-13-s2.408","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.408","url":null,"abstract":"\u0000 \u0000 Previous field studies of exercise undertaken in hot conditions reported dissociation between heat-related symptoms and body core temperature (Tc) elevation. This prompted us to examine physiological mechanisms underpinning responses to exertional heat exposure in a controlled laboratory experiment.\u0000 \u0000 \u0000 \u0000 Thirty-eight apparently healthy participants had body composition (DEXA) and fitness (V̇O2peak) measured in a preliminary visit. Tc, heart rate (HR), exercise intensity (V̇O2) and echocardiographic measures of end-diastolic volume (EDV), stroke volume (SV) and cardiac output (Q̇) were measured at rest and at 30-minute intervals throughout a two-hour walk (5km/h and 2% gradient) in a climate-controlled chamber (40⸰C and 50% relative-humidity).\u0000 \u0000 \u0000 \u0000 Twenty-seven participants completed the experiment (Completers; Com), 7 were stopped due to Tc exceeding 39⸰C (Hyperthermics; Hyp). Four participants did not complete the protocol due to adverse symptoms and were excluded from this analysis. Hyp had significantly greater Tc at 60-minutes (38.6±0.5⸰C vs. 38.0±0.3⸰C; P=<0.001) and 90-minutes (39.0±0.3⸰C vs. 38.3±0.3⸰C; P=<0.001) than Com. Baseline V̇O2peak (ml.kg-1.min-1) did not differ between Hyp and Com (P=0.248). Whilst body weight and lean body mass did not significantly differ between Hyp and Com, visceral adipose tissue (VAT) volume (463.2±194.3cm3 vs. 259.9±284.4cm3 P=0.014) and mass (437.0±183.1g vs. 245.2±268.2g P=0.013) were significantly greater in Hyp vs Com. In Hyp, HR change from baseline was greater at 60-minutes (Δ57±15bpm vs. Δ36±18bpm; P=0.01) and 90-minutes (Δ63±20bpm vs. Δ42±19bpm; P=0.017), whilst change in EDV (Δ-22.7±11.4ml vs. Δ-6.92±11.2ml; P=0.016) and SV (Δ-19.4±6.1ml vs. Δ-0.7±7.5ml; P=<0.001) were significantly reduced in Hyp compared to Com.\u0000 \u0000 \u0000 \u0000 During walking in the heat, subjects who became hyperthermic had significantly higher baseline visceral fat mass and early signs of exaggerated haemodynamic burden during exertional heat exposure. This study has implications for the identification of appropriate variables for establishing safe work limits during heat exposure in military and work-related contexts.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141046221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.411
Mrs Misha Ansari, Associate Professor Andrew Williams, Dr Sibella Hardcastle, Dr Matthew Schmidt, Dr Stephen Myers
Exercise is effective in preventing and managing Type 2 Diabetes Mellitus (T2DM). However, a significant number of people do not exercise as they perceive exercise to be physically challenging. Eccentric exercise, a novel aerobic exercise modality is less metabolically demanding and has been shown to have positive effects on blood glucose levels, cardiovascular fitness, and muscle strength in healthy populations. This research was conducted to explore the impact of eccentric exercise, specifically downhill walking, on insulin sensitivity, arterial health, muscle strength, and physical functional fitness in individuals with T2DM. A 12-week randomised controlled trial was conducted to investigate the effects of downhill, level, and uphill walking on people with T2DM. Sedentary adult participants with T2DM were randomised to perform downhill walking (DW), level walking (LW), or uphill walking (UW) for 30 minutes twice a week for twelve weeks at a standard speed of 2.5km/hr. The primary outcome measure was glycosylated haemoglobin (HbA1c), while secondary measures included arterial stiffness, strength, and physical fitness. A significant reduction in HbA1c between baseline and 12 weeks was observed in the UW group However, per-protocol analysis showed a significant decrease in HbA1c in the DW group post-intervention as well. Central Systolic blood pressure significantly decreased between baseline and post-intervention in the DW group. Participants in DW group and UW group showed significant improvements in distance walked in 6MWT post-intervention. A significant increase in knee extensors isometric strength between baseline and 12 weeks was observed for the DW group only. DW was as effective as UW for improving insulin sensitivity and more effective than LW and UW for improving central systolic blood pressure, muscle strength and functional physical fitness. DW is a viable option for those seeking a less demanding form of exercise.
{"title":"THE EFFECTS OF DOWNHILL WALKING ON INSULIN SENSITIVITY, ARTERIAL HEALTH, MUSCLE STRENGTH AND FUNCTIONAL PHYSICAL FITNESS IN PEOPLE WITH TYPE 2 DIABETES MELLITUS","authors":"Mrs Misha Ansari, Associate Professor Andrew Williams, Dr Sibella Hardcastle, Dr Matthew Schmidt, Dr Stephen Myers","doi":"10.31189/2165-7629-13-s2.411","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.411","url":null,"abstract":"\u0000 \u0000 Exercise is effective in preventing and managing Type 2 Diabetes Mellitus (T2DM). However, a significant number of people do not exercise as they perceive exercise to be physically challenging. Eccentric exercise, a novel aerobic exercise modality is less metabolically demanding and has been shown to have positive effects on blood glucose levels, cardiovascular fitness, and muscle strength in healthy populations. This research was conducted to explore the impact of eccentric exercise, specifically downhill walking, on insulin sensitivity, arterial health, muscle strength, and physical functional fitness in individuals with T2DM.\u0000 \u0000 \u0000 \u0000 A 12-week randomised controlled trial was conducted to investigate the effects of downhill, level, and uphill walking on people with T2DM. Sedentary adult participants with T2DM were randomised to perform downhill walking (DW), level walking (LW), or uphill walking (UW) for 30 minutes twice a week for twelve weeks at a standard speed of 2.5km/hr. The primary outcome measure was glycosylated haemoglobin (HbA1c), while secondary measures included arterial stiffness, strength, and physical fitness.\u0000 \u0000 \u0000 \u0000 A significant reduction in HbA1c between baseline and 12 weeks was observed in the UW group However, per-protocol analysis showed a significant decrease in HbA1c in the DW group post-intervention as well. Central Systolic blood pressure significantly decreased between baseline and post-intervention in the DW group. Participants in DW group and UW group showed significant improvements in distance walked in 6MWT post-intervention. A significant increase in knee extensors isometric strength between baseline and 12 weeks was observed for the DW group only.\u0000 \u0000 \u0000 \u0000 DW was as effective as UW for improving insulin sensitivity and more effective than LW and UW for improving central systolic blood pressure, muscle strength and functional physical fitness. DW is a viable option for those seeking a less demanding form of exercise.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141044741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.499
Dr Luke Del Vecchio, Associate Professor Pauletta Irwin, Associate Professor Rosanne Coutts
Essential to both students and experienced exercise physiology practitioners, reflective practice is a cornerstone of lifelong learning and improved client care. In clinical settings reflection, characterised by awareness, is the critical analysis of experience and requires integration into higher education curriculum. Final-year exercise physiology students (N = 21) and 5 clinical exercise physiology supervisors completed a reflective practice learning activity. The stepped process of SPROUT was utilised, via classroom teaching and 14 weeks of clinical practicum. SPROUT represents the Situation, Past experiences, Read and refer, Other influences, Understanding, and Taking it forward. Teaching modes included group discussion, clinical situations, and student-led practice along with the completion of written reflections. Each student responded to the Reflection in Learning Scale (RLS) and further questions about their confidence. Written scripts were analysed for meaning and each ranked. Supervisors responded to open-ended questions during a focus group. Student scores for the RLS revealed higher scores for planning, knowledge integration and mental processing and lower for interactions with knowledge, mindful summarising and coping with negative emotions. 75% of students indicated that they were confident with reflective practice and that SPROUT, however time-consuming, had been helpful. Written scripts showed a range of developing abilities, from novice requiring more depth to those more advanced who demonstrated meaningful engagement and solution-orientated reflective ability. Clinical supervisors supported the importance of reflective practice and were positive about the application of the stepped approach of SPROUT. The SPROUT framework supported reflective practice learning, benefiting both students and qualified practitioners, facilitating not only increased confidence but also a more profound understanding of clinical encounters. The structured approach of SPROUT proved beneficial in guiding reflective thinking. This research underscores the importance of reflective practice in exercise physiology, endorsing its role in ongoing professional development.
{"title":"ENHANCING REFLECTIVE CAPACITIES IN EXERCISE PHYSIOLOGY: BRIDGING EDUCATION AND LIFELONG PROFESSIONAL LEARNING","authors":"Dr Luke Del Vecchio, Associate Professor Pauletta Irwin, Associate Professor Rosanne Coutts","doi":"10.31189/2165-7629-13-s2.499","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.499","url":null,"abstract":"\u0000 \u0000 Essential to both students and experienced exercise physiology practitioners, reflective practice is a cornerstone of lifelong learning and improved client care. In clinical settings reflection, characterised by awareness, is the critical analysis of experience and requires integration into higher education curriculum.\u0000 \u0000 \u0000 \u0000 Final-year exercise physiology students (N = 21) and 5 clinical exercise physiology supervisors completed a reflective practice learning activity. The stepped process of SPROUT was utilised, via classroom teaching and 14 weeks of clinical practicum. SPROUT represents the Situation, Past experiences, Read and refer, Other influences, Understanding, and Taking it forward. Teaching modes included group discussion, clinical situations, and student-led practice along with the completion of written reflections. Each student responded to the Reflection in Learning Scale (RLS) and further questions about their confidence. Written scripts were analysed for meaning and each ranked. Supervisors responded to open-ended questions during a focus group.\u0000 \u0000 \u0000 \u0000 Student scores for the RLS revealed higher scores for planning, knowledge integration and mental processing and lower for interactions with knowledge, mindful summarising and coping with negative emotions. 75% of students indicated that they were confident with reflective practice and that SPROUT, however time-consuming, had been helpful. Written scripts showed a range of developing abilities, from novice requiring more depth to those more advanced who demonstrated meaningful engagement and solution-orientated reflective ability. Clinical supervisors supported the importance of reflective practice and were positive about the application of the stepped approach of SPROUT.\u0000 \u0000 \u0000 \u0000 The SPROUT framework supported reflective practice learning, benefiting both students and qualified practitioners, facilitating not only increased confidence but also a more profound understanding of clinical encounters. The structured approach of SPROUT proved beneficial in guiding reflective thinking. This research underscores the importance of reflective practice in exercise physiology, endorsing its role in ongoing professional development.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141047541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.303
Sumeyya Ozsoy, Dr Russell Conduit, Dr Robyn Moffitt, Dr Tim Buszard, Dr Melanie Nash
Innovation plays a crucial role in elite sports, including tennis, where technological advancements have significantly impacted the competition environment (e.g.,Hawkeye), equipment (e.g., racquet development), and training (e.g., SwingVision). However, the progress made in enhancing mental resilience and skill acquisition practices in tennis has not kept pace with these other areas. Virtual reality (VR) training and its advancements have been consistently evolving over the past decade in commercial, research, and sport settings, including the realm of tennis. Despite the existence of VR tennis programs, the reasons for the technology not being integrated into training or tournament environments at the sub-elite and elite levels remain unknown. Therefore, the objective of this study was to explore the opinions and knowledge of high-performance tennis coaches regarding VR. The results revealed that 50% coaches had personal experience with VR, which 39% had experience with VR-tennis specifically. Limited technological capabilities of VR-tennis emerged as a consistent barrier for elite level athletes. Moreover, coaches highlighted limitations such as high costs and limited real-time manipulations, which further hinder the adoption of VR in tennis. The viewpoints shared by coaches in this study can assist future VR companies in finding ways to access the elite tennis market, provide guidance to coaches interested in incorporating VR into their coaching methods, and foster the development of new practices for mental and motor skill learning through VR innovations.
{"title":"EXPLORING THE PERCEPTIONS AND UTILIZATION OF VIRTUAL REALITY IN TENNIS COACHING: INSIGHTS FROM HIGH-PERFORMANCE AUSTRALIAN COACHES","authors":"Sumeyya Ozsoy, Dr Russell Conduit, Dr Robyn Moffitt, Dr Tim Buszard, Dr Melanie Nash","doi":"10.31189/2165-7629-13-s2.303","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.303","url":null,"abstract":"\u0000 \u0000 Innovation plays a crucial role in elite sports, including tennis, where technological advancements have significantly impacted the competition environment (e.g.,Hawkeye), equipment (e.g., racquet development), and training (e.g., SwingVision). However, the progress made in enhancing mental resilience and skill acquisition practices in tennis has not kept pace with these other areas. Virtual reality (VR) training and its advancements have been consistently evolving over the past decade in commercial, research, and sport settings, including the realm of tennis. Despite the existence of VR tennis programs, the reasons for the technology not being integrated into training or tournament environments at the sub-elite and elite levels remain unknown. Therefore, the objective of this study was to explore the opinions and knowledge of high-performance tennis coaches regarding VR.\u0000 \u0000 \u0000 \u0000 The results revealed that 50% coaches had personal experience with VR, which 39% had experience with VR-tennis specifically. Limited technological capabilities of VR-tennis emerged as a consistent barrier for elite level athletes. Moreover, coaches highlighted limitations such as high costs and limited real-time manipulations, which further hinder the adoption of VR in tennis.\u0000 \u0000 \u0000 \u0000 The viewpoints shared by coaches in this study can assist future VR companies in finding ways to access the elite tennis market, provide guidance to coaches interested in incorporating VR into their coaching methods, and foster the development of new practices for mental and motor skill learning through VR innovations.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141047494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.456
Dr. Deborah Pascoe, Mr Michael Donaldson
Transitioning from a seated position to standing is an important component to everyday living which can be affected by age-related muscle strength loss. Changing foot position has been found to affect a sit-to-stand transition in healthy younger populations however the effect it has on healthy older populations is unknown. The aim of this study was to provide clinicians with greater insight into the effect asymmetrical initial foot positions have on weight distribution symmetry and force production during a sit-to-stand transition in adults over 60 years of age. Three symmetrical and six asymmetrical initial foot positions were investigated on two separate testing sessions. The maximum vertical ground reaction forces collected from each foot placed on individual Kistler force platforms were used to calculate body weight symmetry percentage. Body weight symmetry reduced when the dominant foot was moved posteriorly 1/3 and 2/3 participant’s foot length compared to the symmetrical positions (102-107%). When the non-dominant foot was moved posteriorly by 1/3 and 2/3 the participant’s foot length, body weight symmetry increased (99-102%) above the symmetrical positions. Maximum vertical ground reaction forces occurred (5.6-6.2N/kg) in the asymmetrical positions with the anterior foot positioned in neutral. Asymmetrical foot positions which involved shifting one extremity posteriorly by 1/3 or 2/3 the participant’s foot length reduced transitional stability but increased force production. These results will help guide clinicians to scaffold progressions when prescribing sit-to-stand exercises to rehabilitate unilateral strength deficiencies within an older population.
{"title":"EFFECT INITIAL FOOT POSITION HAS ON WEIGHT DISTRIBUTION SYMMETRY AND FORCE PRODUCTION DURING A SIT-TO-STAND TASK IN OLDER ADULTS","authors":"Dr. Deborah Pascoe, Mr Michael Donaldson","doi":"10.31189/2165-7629-13-s2.456","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.456","url":null,"abstract":"\u0000 \u0000 Transitioning from a seated position to standing is an important component to everyday living which can be affected by age-related muscle strength loss. Changing foot position has been found to affect a sit-to-stand transition in healthy younger populations however the effect it has on healthy older populations is unknown. The aim of this study was to provide clinicians with greater insight into the effect asymmetrical initial foot positions have on weight distribution symmetry and force production during a sit-to-stand transition in adults over 60 years of age.\u0000 \u0000 \u0000 \u0000 Three symmetrical and six asymmetrical initial foot positions were investigated on two separate testing sessions. The maximum vertical ground reaction forces collected from each foot placed on individual Kistler force platforms were used to calculate body weight symmetry percentage.\u0000 \u0000 \u0000 \u0000 Body weight symmetry reduced when the dominant foot was moved posteriorly 1/3 and 2/3 participant’s foot length compared to the symmetrical positions (102-107%). When the non-dominant foot was moved posteriorly by 1/3 and 2/3 the participant’s foot length, body weight symmetry increased (99-102%) above the symmetrical positions. Maximum vertical ground reaction forces occurred (5.6-6.2N/kg) in the asymmetrical positions with the anterior foot positioned in neutral.\u0000 \u0000 \u0000 \u0000 Asymmetrical foot positions which involved shifting one extremity posteriorly by 1/3 or 2/3 the participant’s foot length reduced transitional stability but increased force production. These results will help guide clinicians to scaffold progressions when prescribing sit-to-stand exercises to rehabilitate unilateral strength deficiencies within an older population.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141049644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-01DOI: 10.31189/2165-7629-13-s2.463
Mr Priyankara Manoj Rajakaruna, Associate Professor Yvonne C. Learmonth, Associate Professor Alasdair R. Dempsey
The Landing Error Scoring System (LESS) is used for screening noncontact anterior cruciate ligament (ACL) injury risk. The LESS is deemed a valid and reliable indicator of landing biomechanics that predict noncontact ACL injuries. We have sought to validate a Single-Leg Landing Error Scoring System (SLESS) against the established LESS. There are seven distinct calculation methods for final LESS scores, adding variability to the original version and the risk of misinterpreting results. This study used different calculation methods to investigate the inter-session, intra-rater and inter-rater reliability of the SLESS and LESS scores. Thirty-five team sports players performed four drop jump landing variations (dominant leg, non-dominant leg, double-leg and cognitive loading drill with double-leg) over three sessions. Sessions 1 and 2 were conducted on the same day, with Session 3 a week later. Video footage from frontal and sagittal views captured all landings. Three professionals scored recorded trials using standard SLESS and LESS protocols. One scorer assessed intra-session and inter-session reliability, while three evaluated inter-rater reliability. The final SLESS and LESS scores were calculated using original version/OG, average of 3 trials-AV, worst trial/WT, best score/BS, first trial/FT, last trial/LT, error present in at least two of three trials/TT). Reliability was assessed using intraclass correlation coefficient (ICC), standard error of measurement (SEM), and coefficient of variation (CV) with 95% confidence intervals. The study observed acceptable inter-session reliability across single-leg and double-leg drop jump landing tasks using all seven calculation methods (SLESS: ICC=0.80-0.91, SEM=1.07-1.10, CV=6.5-10.1%; LESS: ICC=0.63-0.90, SEM=1.06-1.11, CV=5.7-11.5%). The study also demonstrated acceptable intra-rater reliability for all tasks using all calculation methods (SLESS: ICC=0.86-0.94, SEM=1.05-1.08, CV=5.0-8.5%; LESS: ICC=0.74-0.93, SEM=1.04-1.08, CV=4.2-8.5%). In addition, acceptable inter-rater reliability was shown for all tasks using all calculation methods (SLESS: ICC=0.69-0.83, SEM=1.11-1.18, CV=10.5-18.0%; LESS: ICC=0.54-0.82, SEM=1.10-1.20, CV=10.3-20.3%). The study indicates the reliability of all seven calculation methods for SLESS and LESS scores. Precise specification of the chosen calculation method is crucial for practitioners and researchers.
着地误差评分系统（LESS）用于筛查非接触性前十字韧带（ACL）损伤风险。LESS 被认为是预测非接触性前交叉韧带损伤的着地生物力学的有效可靠指标。我们试图将单腿着地误差评分系统（SLESS）与既定的 LESS 进行对比验证。LESS 的最终得分有七种不同的计算方法，这增加了原始版本的可变性和误读结果的风险。本研究采用了不同的计算方法来研究 SLESS 和 LESS 分数在训练间、训练者内部和训练者之间的可靠性。 35 名团队运动运动员在三次训练中进行了四次落体跳着地变化（优势腿、非优势腿、双腿和双腿认知负荷训练）。第一和第二节在同一天进行，第三节在一周后进行。正面和矢状视角的录像记录了所有着地动作。三名专业人员使用标准的 SLESS 和 LESS 协议对记录的试验进行评分。其中一名评分员评估了测试过程中和测试过程间的可靠性，三名评分员评估了评分员之间的可靠性。SLESS 和 LESS 的最终得分是通过原始版本/OG、三次试验的平均值-AV、最差试验/WT、最佳得分/BS、第一次试验/FT、最后一次试验/LT、三次试验中至少两次出现错误/TT）计算得出的。使用类内相关系数（ICC）、测量标准误差（SEM）和变异系数（CV）以及 95% 的置信区间对可靠性进行评估。 研究观察到，使用所有七种计算方法完成单腿和双腿下蹲跳着地任务时，各阶段间的可靠性均可接受（SLESS：ICC=0.80-0.91，SEM=1.07-1.10，CV=6.5-10.1%；LESS：ICC=0.63-0.90，SEM=1.06-1.11，CV=5.7-11.5%）。研究还表明，使用所有计算方法完成所有任务的评分者内部信度均可接受（SLESS：ICC=0.86-0.94，SEM=1.05-1.08，CV=5.0-8.5%；LESS：ICC=0.74-0.93，SEM=1.04-1.08，CV=4.2-8.5%）。此外，使用所有计算方法完成所有任务时，评分者之间的可靠性均可接受（SLESS：ICC=0.69-0.83，SEM=1.11-1.18，CV=10.5-18.0%；LESS：ICC=0.54-0.82，SEM=1.10-1.20，CV=10.3-20.3%）。 研究表明，SLESS 和 LESS 分数的所有七种计算方法都是可靠的。对从业人员和研究人员来说，精确指定所选计算方法至关重要。
{"title":"COMPARISON OF INTER-SESSION, INTRA-RATER AND INTER-RATER RELIABILITY OF SINGLE AND DOUBLE LEG LANDING ERROR SCORING SYSTEM USING DIFFERENT CALCULATION METHODS","authors":"Mr Priyankara Manoj Rajakaruna, Associate Professor Yvonne C. Learmonth, Associate Professor Alasdair R. Dempsey","doi":"10.31189/2165-7629-13-s2.463","DOIUrl":"https://doi.org/10.31189/2165-7629-13-s2.463","url":null,"abstract":"\u0000 \u0000 The Landing Error Scoring System (LESS) is used for screening noncontact anterior cruciate ligament (ACL) injury risk. The LESS is deemed a valid and reliable indicator of landing biomechanics that predict noncontact ACL injuries. We have sought to validate a Single-Leg Landing Error Scoring System (SLESS) against the established LESS. There are seven distinct calculation methods for final LESS scores, adding variability to the original version and the risk of misinterpreting results. This study used different calculation methods to investigate the inter-session, intra-rater and inter-rater reliability of the SLESS and LESS scores.\u0000 \u0000 \u0000 \u0000 Thirty-five team sports players performed four drop jump landing variations (dominant leg, non-dominant leg, double-leg and cognitive loading drill with double-leg) over three sessions. Sessions 1 and 2 were conducted on the same day, with Session 3 a week later. Video footage from frontal and sagittal views captured all landings. Three professionals scored recorded trials using standard SLESS and LESS protocols. One scorer assessed intra-session and inter-session reliability, while three evaluated inter-rater reliability. The final SLESS and LESS scores were calculated using original version/OG, average of 3 trials-AV, worst trial/WT, best score/BS, first trial/FT, last trial/LT, error present in at least two of three trials/TT). Reliability was assessed using intraclass correlation coefficient (ICC), standard error of measurement (SEM), and coefficient of variation (CV) with 95% confidence intervals.\u0000 \u0000 \u0000 \u0000 The study observed acceptable inter-session reliability across single-leg and double-leg drop jump landing tasks using all seven calculation methods (SLESS: ICC=0.80-0.91, SEM=1.07-1.10, CV=6.5-10.1%; LESS: ICC=0.63-0.90, SEM=1.06-1.11, CV=5.7-11.5%). The study also demonstrated acceptable intra-rater reliability for all tasks using all calculation methods (SLESS: ICC=0.86-0.94, SEM=1.05-1.08, CV=5.0-8.5%; LESS: ICC=0.74-0.93, SEM=1.04-1.08, CV=4.2-8.5%). In addition, acceptable inter-rater reliability was shown for all tasks using all calculation methods (SLESS: ICC=0.69-0.83, SEM=1.11-1.18, CV=10.5-18.0%; LESS: ICC=0.54-0.82, SEM=1.10-1.20, CV=10.3-20.3%).\u0000 \u0000 \u0000 \u0000 The study indicates the reliability of all seven calculation methods for SLESS and LESS scores. Precise specification of the chosen calculation method is crucial for practitioners and researchers.\u0000","PeriodicalId":92070,"journal":{"name":"Journal of clinical exercise physiology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141055960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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