Pub Date : 2022-08-31DOI: 10.15857/ksep.2022.00297
Inhwan Lee, Hyunwook Kang
PURPOSE: This study aimed to investigate the association between light intensity physical activity (LPA) and all-cause mortality in older adults with physical disability.METHODS: Data from the 2008 Living Profiles of Older People Survey involving 14,367 Korean adults aged ≥60 years (13,417 without disabilities and 950 with disabilities) were used. Participants were divided into active and inactive groups based on weekly LPA and moderate-to-vigorous intensity physical activity (MVPA). Cox proportional hazards regression model was used to calculate hazard ratio (HR) and 95% confidence interval (CI), according to disability status and physical activity levels.RESULTS: During 3.3±0.4 years follow-up period, 1,024 deaths occurred from all causes. Among non-disabled people, the inactive group showed a significantly higher risk of all-cause mortality (HR=1.282, 95% CI=1.122–1.465, p<.001) than the active group (reference= 1) in LPA. Similarly, for MVPA, the risk of all-cause mortality was significantly higher in the inactive group (HR=1.522, 95% CI=1.230–1.882, p<.001) than in the active group (reference=1). However, among physically disabled people, the inactive group correspondingly showed a significantly higher risk of all-cause mortality (HR=2.735, 95% CI=1.761–4.246, p<.001) than the active group, while there was no significant difference between both groups in MVPA.CONCLUSIONS: The current findings suggest that promoting LPA may play an important role in preventing premature death from allcause mortality in older adults with physical disability.
{"title":"Association between Light Intensity Physical Activity and All-cause Mortality in Older Adults with Physical Disability","authors":"Inhwan Lee, Hyunwook Kang","doi":"10.15857/ksep.2022.00297","DOIUrl":"https://doi.org/10.15857/ksep.2022.00297","url":null,"abstract":"PURPOSE: This study aimed to investigate the association between light intensity physical activity (LPA) and all-cause mortality in older adults with physical disability.METHODS: Data from the 2008 Living Profiles of Older People Survey involving 14,367 Korean adults aged ≥60 years (13,417 without disabilities and 950 with disabilities) were used. Participants were divided into active and inactive groups based on weekly LPA and moderate-to-vigorous intensity physical activity (MVPA). Cox proportional hazards regression model was used to calculate hazard ratio (HR) and 95% confidence interval (CI), according to disability status and physical activity levels.RESULTS: During 3.3±0.4 years follow-up period, 1,024 deaths occurred from all causes. Among non-disabled people, the inactive group showed a significantly higher risk of all-cause mortality (HR=1.282, 95% CI=1.122–1.465, p<.001) than the active group (reference= 1) in LPA. Similarly, for MVPA, the risk of all-cause mortality was significantly higher in the inactive group (HR=1.522, 95% CI=1.230–1.882, p<.001) than in the active group (reference=1). However, among physically disabled people, the inactive group correspondingly showed a significantly higher risk of all-cause mortality (HR=2.735, 95% CI=1.761–4.246, p<.001) than the active group, while there was no significant difference between both groups in MVPA.CONCLUSIONS: The current findings suggest that promoting LPA may play an important role in preventing premature death from allcause mortality in older adults with physical disability.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48257396","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 : 2022-08-31DOI: 10.15857/ksep.2022.00374
Sun Huh
Exercise Science, the official journal of the Korean Society of Exercise Physiology, was launched in 1992. In 2022, it published its 31st volume. The journal has been indexed in Scopus since 2020. It published 56 articles in 2020, 65 in 2021, and 27 as of May 2022. English-language articles have frequently appeared since 2021, with a proportion increasing from 4 out of 16 (25.5%) in February 2021 to 7 out of 11 in May 2022 (63.6%) (Fig. 1).
{"title":"Suggestions for Exercise Science’s Promotion to a Top-Tier Journal in the Category of Sports Science","authors":"Sun Huh","doi":"10.15857/ksep.2022.00374","DOIUrl":"https://doi.org/10.15857/ksep.2022.00374","url":null,"abstract":"Exercise Science, the official journal of the Korean Society of Exercise Physiology, was launched in 1992. In 2022, it published its 31st volume. The journal has been indexed in Scopus since 2020. It published 56 articles in 2020, 65 in 2021, and 27 as of May 2022. English-language articles have frequently appeared since 2021, with a proportion increasing from 4 out of 16 (25.5%) in February 2021 to 7 out of 11 in May 2022 (63.6%) (Fig. 1).","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47620218","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 : 2022-08-31DOI: 10.15857/ksep.2022.00248
Jianming Zhou, Ahmad Tajuddin Othman, A. Z. Khairani
PURPOSE: Aquatic training assists in reducing the risk of exercise on joints among children. This systematic review evaluated the effectiveness of aquatic training for children from the perspective of body composition.METHODS: A meta-analysis was performed to determine the potential impact of aquatic training in children. Four databases, namely Scopus, PubMed, Web of Science, and EBSCO, were used for the systematic search from September 2010 to November 2021. The mean differences in the data were analyzed using Stata 15.1 software with a 95% confidence interval. Outcome measures included weight, body mass index (BMI), fat percentage (Fat%), and waist circumference.RESULTS: Eleven studies, comprising eight randomized controlled trials (RCT) and three non-RCT studies, evaluating the effect of aquatic training on children were analyzed and reported. Aquatic training significantly improved the BMI (p<.01) and Fat% (p<.01) in children (ES (95% CI)=-0.23 (-0.38, -0.08) and ES (95% CI)=-0.27 (-0.45, -0.08). However, aquatic training had no significant effect on weight (p=.41), ES (95% CI)=-0.07 (-0.25, 0.10), and waist circumference (p=.11) in children, ES (95% CI)=-0.33 (-0.74, 0.08).CONCLUSIONS: Aquatic training can improve children’s BMI and body fat% but nottheir weight, waist circumference, and muscle mass. Aquatic training may be a potential exercise program for improving body composition in children.
目的：水上训练有助于降低儿童关节运动的风险。这篇系统综述从身体成分的角度评估了儿童水上训练的有效性。方法：进行荟萃分析，以确定水上训练对儿童的潜在影响。2010年9月至2021年11月，Scopus、PubMed、Web of Science和EBSCO四个数据库被用于系统搜索。数据的平均差异使用Stata 15.1软件进行分析，置信区间为95%。结果指标包括体重、体重指数（BMI）、脂肪百分比（fat%）和腰围。结果：分析并报告了11项研究，包括8项随机对照试验（RCT）和3项非随机对照试验，评估了水上训练对儿童的影响。水上训练显著改善了儿童的BMI（p<0.01）和脂肪%（p<0.01）（ES（95%CI）=-0.23（-0.38，-0.008）和ES（95%CI）=-0.27（-0.45，-0.08）。然而，水上训练对儿童的体重（p=.41）、ES（95%CI）=-0.07（-0.25，0.10）和腰围（p=.11）没有显著影响，ES（95%CI）=-0.33（-0.74.0.08）。结论：水上训练可以改善儿童的BMI和体脂%，但不能改善他们的体重、腰围和肌肉质量。水上训练可能是改善儿童身体成分的一种潜在运动计划。
{"title":"Effects of Aquatic Training on Waist Circumference and Body Composition among Children: A Meta-analysis","authors":"Jianming Zhou, Ahmad Tajuddin Othman, A. Z. Khairani","doi":"10.15857/ksep.2022.00248","DOIUrl":"https://doi.org/10.15857/ksep.2022.00248","url":null,"abstract":"PURPOSE: Aquatic training assists in reducing the risk of exercise on joints among children. This systematic review evaluated the effectiveness of aquatic training for children from the perspective of body composition.METHODS: A meta-analysis was performed to determine the potential impact of aquatic training in children. Four databases, namely Scopus, PubMed, Web of Science, and EBSCO, were used for the systematic search from September 2010 to November 2021. The mean differences in the data were analyzed using Stata 15.1 software with a 95% confidence interval. Outcome measures included weight, body mass index (BMI), fat percentage (Fat%), and waist circumference.RESULTS: Eleven studies, comprising eight randomized controlled trials (RCT) and three non-RCT studies, evaluating the effect of aquatic training on children were analyzed and reported. Aquatic training significantly improved the BMI (p<.01) and Fat% (p<.01) in children (ES (95% CI)=-0.23 (-0.38, -0.08) and ES (95% CI)=-0.27 (-0.45, -0.08). However, aquatic training had no significant effect on weight (p=.41), ES (95% CI)=-0.07 (-0.25, 0.10), and waist circumference (p=.11) in children, ES (95% CI)=-0.33 (-0.74, 0.08).CONCLUSIONS: Aquatic training can improve children’s BMI and body fat% but nottheir weight, waist circumference, and muscle mass. Aquatic training may be a potential exercise program for improving body composition in children.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46979740","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 : 2022-08-31DOI: 10.15857/ksep.2022.00255
Hyojin Kim, Chan-hoi Kim
PURPOSE: The purpose of this study was to investigate the effects of 8 weeks of mat Pilates exercise on back pain, muscle mass, isokinetic muscle function, and core stability in healthy college female.METHODS: Twenty healthy college females (aged 21.7±2.5 years) were recruited for the study. The participants were divided into two groups: mat Pilates exercise group (MP, n=10) and non-Pilates control group (CON, n=10). The MP group participated in the mat Pilates exercise program for 60 minutes a day, 3 days per week for 8 weeks. Back pain and basal physical fitness were assessed before and after the experimental period. Left and right core stabilities at 0°, 45°, 90°, 135°, and 180° were measured using Centaur (BFMC, Germany). Isokinetic muscle function (60°/s) of both the knee and trunk was also measured using the isokinetic dynamometer Cybex.RESULTS: After mat Pilates exercise for 8 weeks, there was a significant interaction between the MP and CON groups in back pain during daily activity and lower back stiffness (p<.05), respectively. There was also a significant interaction between the two groups in the left and right core stability at 45°, 90°, 135°, and 180° (p<.05, p<.01, p<.001), respectively. Additionally, there was a significant interaction between the two groups in the right knee and left knee isokinetic extensor muscle strength (p<.05, p<.001, respectively). However, there was no significant interaction between the two groups in trunk isokinetic extensor and flexor muscle strength (NS). There were no significant interactions between two groups in the muscle mass of total body, trunk, and legs (NS), respectively. Regarding basic physical fitness, there were significant interaction effects between the two groups in cardiovascular fitness, sagittal reach, and sit-ups (p<.05).CONCLUSIONS: These results suggest that continued mat Pilates exercise can improve back pain and core stability with enhancement of leg isokinetic muscle strength independent of the muscle mass of the total body, trunk, and legs.
目的:本研究的目的是探讨8周的垫子普拉提运动对健康女大学生背部疼痛、肌肉质量、等速肌肉功能和核心稳定性的影响。方法:招募20名健康女大学生，年龄21.7±2.5岁。参与者被分为两组:垫子普拉提运动组(MP, n=10)和非普拉提对照组(CON, n=10)。MP组参加垫子普拉提运动计划，每天60分钟，每周3天，持续8周。在实验前后分别评估腰痛和基础体能。左核和右核在0°、45°、90°、135°和180°处的稳定性采用Centaur (BFMC，德国)测量。膝关节和躯干的等速肌肉功能(60°/s)也使用等速测功仪Cybex进行测量。结果:在垫子普拉提运动8周后，MP组和CON组在日常活动时的背部疼痛和下背部僵硬度方面分别存在显著的相互作用(p< 0.05)。两组在45°、90°、135°和180°处的左右核心稳定性也存在显著的相互作用(p< 0.05)。05, p <。0.01, p< 0.001)。此外，两组在右膝和左膝等速伸肌力量方面存在显著的相互作用(p< 0.05)。05, p <。001年,分别)。然而，两组在躯干等速伸肌和屈肌力量(NS)方面没有显著的相互作用。两组间全身、躯干和腿部肌肉质量(NS)均无显著交互作用。在基础体能方面，两组在心血管体能、矢状位伸展和仰卧起坐方面存在显著的交互效应(p< 0.05)。结论:这些结果表明，持续的垫子普拉提运动可以改善背部疼痛和核心稳定性，增强腿部等速肌肉力量，而不依赖于全身、躯干和腿部的肌肉质量。
{"title":"Continued Mat Pilates Exercise Improve Basal Physical Fitness, Core Stability and Back Pain in Healthy College Female","authors":"Hyojin Kim, Chan-hoi Kim","doi":"10.15857/ksep.2022.00255","DOIUrl":"https://doi.org/10.15857/ksep.2022.00255","url":null,"abstract":"PURPOSE: The purpose of this study was to investigate the effects of 8 weeks of mat Pilates exercise on back pain, muscle mass, isokinetic muscle function, and core stability in healthy college female.METHODS: Twenty healthy college females (aged 21.7±2.5 years) were recruited for the study. The participants were divided into two groups: mat Pilates exercise group (MP, n=10) and non-Pilates control group (CON, n=10). The MP group participated in the mat Pilates exercise program for 60 minutes a day, 3 days per week for 8 weeks. Back pain and basal physical fitness were assessed before and after the experimental period. Left and right core stabilities at 0°, 45°, 90°, 135°, and 180° were measured using Centaur (BFMC, Germany). Isokinetic muscle function (60°/s) of both the knee and trunk was also measured using the isokinetic dynamometer Cybex.RESULTS: After mat Pilates exercise for 8 weeks, there was a significant interaction between the MP and CON groups in back pain during daily activity and lower back stiffness (p<.05), respectively. There was also a significant interaction between the two groups in the left and right core stability at 45°, 90°, 135°, and 180° (p<.05, p<.01, p<.001), respectively. Additionally, there was a significant interaction between the two groups in the right knee and left knee isokinetic extensor muscle strength (p<.05, p<.001, respectively). However, there was no significant interaction between the two groups in trunk isokinetic extensor and flexor muscle strength (NS). There were no significant interactions between two groups in the muscle mass of total body, trunk, and legs (NS), respectively. Regarding basic physical fitness, there were significant interaction effects between the two groups in cardiovascular fitness, sagittal reach, and sit-ups (p<.05).CONCLUSIONS: These results suggest that continued mat Pilates exercise can improve back pain and core stability with enhancement of leg isokinetic muscle strength independent of the muscle mass of the total body, trunk, and legs.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44653843","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 : 2022-08-31DOI: 10.15857/ksep.2022.00227
Sang-Hyun Lee, Sujin Kim, Young-Sik Kim, C. Kim, H. Kwak, Ju-Hee Kang, Dong-Ho Park
PURPOSE: To investigate the effect of a 4-week training using a laboratory index on the competition record of elite female middle-distance runners.METHODS: A female, middle-distance, trained runner with the following characteristics: age, 20 years; height, 168.7 cm; weight, 64.3 kg; 27.2% fat; and VO2max, 56.4 VO2 mL/kg/min; volunteered to participate in this study. Before the training program, the participant took part in a 1,500-m track and field national event in April and the onset of blood lactate threshold was analyzed using (OBVA/ vOBLA), VO2max/vVO2max, and tVO2max tests. After completing the 4-week training program, the participant again took part in the 1,500-m track and field national event in May and her parameters were reassessed using the OBVA/vOBLA, VO2max/vVO2max, and tVO2max tests.RESULTS: Pre- and post-training indicate that vVO2max did not improve; however, tVO2max (206 seconds pre-training vs. 251.51 seconds post-training) and VO2max (56.4 vs. 59.3 VO2 mL/kg/min)significantly. However, this improvement in relative VO2 was due to weight loss, and the absolute value of VO2 (3.63 vs. 3.62 L/min) did not change. The 1,500-m race record in track and field events decreased significantly from a pre-training value of 5 minutes 03 seconds to a post-training value of 4 minutes 52 seconds. CONCLUSIONS: The results of this study indicate that utilizing laboratory indicators including vOBLA, vVO2max, and tVO2max may be extremely valuable when prescribing training programs for middle-distance runners.
目的:探讨4周实验室指数训练对优秀女子中长跑运动员成绩的影响。方法:女性，中距离，训练有素的跑步者，以下特征:年龄，20岁;高度:168.7 cm;重量:64.3 kg;27.2%的脂肪;VO2max为56.4 VO2 mL/kg/min;自愿参加这项研究。在训练计划之前，参与者参加了4月份的1500米田径全国赛事，并使用(OBVA/ vOBLA)， VO2max/vVO2max和tVO2max测试分析了血乳酸阈的开始。在完成为期4周的训练计划后，参与者再次参加了5月份的1500米田径全国比赛，并使用OBVA/vOBLA, VO2max/vVO2max和tVO2max测试重新评估了她的参数。结果:训练前后vVO2max均无明显改善;然而，tVO2max(训练前206秒vs训练后251.51秒)和VO2max (56.4 vs 59.3 VO2 mL/kg/min)差异显著。然而，这种相对VO2的改善是由于体重减轻，而VO2的绝对值(3.63 vs. 3.62 L/min)没有改变。田径1500米比赛记录从训练前的5分03秒大幅下降到训练后的4分52秒。结论:本研究结果表明，利用vOBLA、vVO2max和tVO2max等实验室指标，在为中长跑运动员制定训练方案时可能是非常有价值的。
{"title":"Effects of 4-week Training Using Laboratory Index on Competition Record of Elite Female Middle-distance Runner: A Case Report","authors":"Sang-Hyun Lee, Sujin Kim, Young-Sik Kim, C. Kim, H. Kwak, Ju-Hee Kang, Dong-Ho Park","doi":"10.15857/ksep.2022.00227","DOIUrl":"https://doi.org/10.15857/ksep.2022.00227","url":null,"abstract":"PURPOSE: To investigate the effect of a 4-week training using a laboratory index on the competition record of elite female middle-distance runners.METHODS: A female, middle-distance, trained runner with the following characteristics: age, 20 years; height, 168.7 cm; weight, 64.3 kg; 27.2% fat; and VO<sub>2</sub>max, 56.4 VO<sub>2</sub> mL/kg/min; volunteered to participate in this study. Before the training program, the participant took part in a 1,500-m track and field national event in April and the onset of blood lactate threshold was analyzed using (OBVA/ vOBLA), VO<sub>2</sub>max/vVO<sub>2</sub>max, and tVO<sub>2</sub>max tests. After completing the 4-week training program, the participant again took part in the 1,500-m track and field national event in May and her parameters were reassessed using the OBVA/vOBLA, VO<sub>2</sub>max/vVO<sub>2</sub>max, and tVO<sub>2</sub>max tests.RESULTS: Pre- and post-training indicate that vVO<sub>2</sub>max did not improve; however, tVO<sub>2</sub>max (206 seconds pre-training vs. 251.51 seconds post-training) and VO<sub>2</sub>max (56.4 vs. 59.3 VO<sub>2</sub> mL/kg/min)significantly. However, this improvement in relative VO<sub>2</sub> was due to weight loss, and the absolute value of VO<sub>2</sub> (3.63 vs. 3.62 L/min) did not change. The 1,500-m race record in track and field events decreased significantly from a pre-training value of 5 minutes 03 seconds to a post-training value of 4 minutes 52 seconds. CONCLUSIONS: The results of this study indicate that utilizing laboratory indicators including vOBLA, vVO<sub>2</sub>max, and tVO<sub>2</sub>max may be extremely valuable when prescribing training programs for middle-distance runners.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46286550","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 : 2022-08-31DOI: 10.15857/ksep.2022.00178
Hyojin Lee, Mihyun Lee, Saejong Park
PURPOSE: This study examined the accuracy of the heart rate (HR) and energy expenditure (EE) measured by commercially available wearable devices during golf.METHODS: A total of 14 male golfers (24.0±4.06 years) participated in this study. Each participant wore five wearable devices (Apple Watch Series 2, AS; Fitbit Versa, FV; Polar V800, PV; Samsung Galaxy Watch Active, SA; and Suunto Spartan Sport Wrist HR, SWH) on the wrist in the laboratory and/or on a golf course. The criterion measures used to evaluate the accuracy of the HR and EE entailed a wireless heart rate monitor (Polar V800, Polar, Finland) and portable indirect gas analyzer (K4b2, COSMED, Italy). In the laboratory, the participants walked on a treadmill and swung golf clubs using seven iron. On the golf course, the participants played golf in nine holes.RESULTS: In the laboratory, the mean absolute percentage error (MAPE) of the HR in the five wearable devices was within 8% for walking and golf club swinging, excluding FV (12%). The MAPE in EE was within 15% for SA, AS, and PV when walking at a speed of 5.6 km/h on the treadmill, but the MAPE in golf club swinging were within 25%. On the golf courses, the HR in all wearable devices showed the MAPE of <5% but EE showed an error rate of <20%, excluding SWH (73%).CONCLUSIONS: The findings of this study suggest that wearable devices might be used to monitor intensity and amount of exercise during golf.
目的：本研究检验了在高尔夫比赛中通过商用可穿戴设备测量的心率（HR）和能量消耗（EE）的准确性。方法：共有14名男性高尔夫球手（24.0±4.06岁）参加本研究。每位参与者在实验室和/或高尔夫球场的手腕上佩戴了五款可穿戴设备（Apple Watch Series 2，AS；Fitbit Versa，FV；Polar V800，PV；Samsung Galaxy Watch Active，SA；Suunto Spartan Sport Wrist HR，SWH）。用于评估HR和EE准确性的标准措施包括无线心率监测器（Polar V800，Polar，芬兰）和便携式间接气体分析仪（K4b2，COSMED，意大利）。在实验室里，参与者在跑步机上行走，并用七个铁杆挥动高尔夫球杆。在高尔夫球场上，参与者打了九个洞的高尔夫球。结果：在实验室中，五种可穿戴设备的HR平均绝对百分比误差（MAPE）在步行和高尔夫球杆挥杆时均在8%以内，不包括FV（12%）。当在跑步机上以5.6km/h的速度行走时，SA、AS和PV在EE中的MAPE在15%以内，但在高尔夫球杆摆动中的MAP在25%以内。在高尔夫球场上，所有可穿戴设备的HR显示出<5%的MAPE，但EE显示出<20%的错误率，不包括SWH（73%）。结论：这项研究的结果表明，可穿戴设备可能用于监测高尔夫运动的强度和运动量。
{"title":"Accuracy of Wearable Devices for Estimating Energy Expenditure and Heart Rate During Golf","authors":"Hyojin Lee, Mihyun Lee, Saejong Park","doi":"10.15857/ksep.2022.00178","DOIUrl":"https://doi.org/10.15857/ksep.2022.00178","url":null,"abstract":"PURPOSE: This study examined the accuracy of the heart rate (HR) and energy expenditure (EE) measured by commercially available wearable devices during golf.METHODS: A total of 14 male golfers (24.0±4.06 years) participated in this study. Each participant wore five wearable devices (Apple Watch Series 2, AS; Fitbit Versa, FV; Polar V800, PV; Samsung Galaxy Watch Active, SA; and Suunto Spartan Sport Wrist HR, SWH) on the wrist in the laboratory and/or on a golf course. The criterion measures used to evaluate the accuracy of the HR and EE entailed a wireless heart rate monitor (Polar V800, Polar, Finland) and portable indirect gas analyzer (K4b2, COSMED, Italy). In the laboratory, the participants walked on a treadmill and swung golf clubs using seven iron. On the golf course, the participants played golf in nine holes.RESULTS: In the laboratory, the mean absolute percentage error (MAPE) of the HR in the five wearable devices was within 8% for walking and golf club swinging, excluding FV (12%). The MAPE in EE was within 15% for SA, AS, and PV when walking at a speed of 5.6 km/h on the treadmill, but the MAPE in golf club swinging were within 25%. On the golf courses, the HR in all wearable devices showed the MAPE of <5% but EE showed an error rate of <20%, excluding SWH (73%).CONCLUSIONS: The findings of this study suggest that wearable devices might be used to monitor intensity and amount of exercise during golf.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49629633","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 : 2022-08-31DOI: 10.15857/ksep.2022.00276
Kwangjun Lee, Kwang-Seok Hong, W. Park
PURPOSE: Skeletal muscle has remarkable regenerative capacity in most minor injuries induced by mechanical laceration, overstretching, and toxins. However, volumetric muscle loss (VML) injury, a large volume of muscle loss beyond the self-repair capacity, causes functional disability and morphological deformities. This study investigated the effects of myofiber injection into a decellularized extracellular matrix (ECM) and resistance training (RT) on skeletal muscle regeneration following VML injury.METHODS: 6-months-old male Fischer CDF rats and 2-months-old F344-Tg (UBC-EGFP) rats (myofiber donors) were used in this study. Approximately 20% of the mass of the lateral gastrocnemius (LGAS) was excised and replaced by ECM of similar dimensions. Thirty myofibers were injected into the injured region seven days post-injury. Ladder climbing (RT) was allowed 10 days post-defect surgery, and the rats were subjected to ladder climbing with a weight every third day for 6 weeks.RESULTS: After 56 days of recovery and exercise training, the cross-sectional area (CSA) of intact muscle in the EXE group (5,104±92 μm2) increased significantly compared to that in the ECM (4,657±79 μm2) group. The number of blood vessels larger than 20 μm in diameter, capillaries excluded, showed a significant difference between the ECM+EXE (34.25±4.2) and ECM (21.75±3.89) groups. A significant reduction of fibrosis in the ECM+EXE (44.50±1.6%) group was observed compared to the ECM (69.25±1.9%) and ECM+FIB+EXE (63.00±1.7%) groups. Moreover, the small muscle fiber area within the transplanted ECM was significantly larger in the ECM+EXE (1.37±0.03 mm2) than in both the ECM (0.49±0.01 mm2) and ECM+FIB (0.62±0.01 mm2) groups.CONCLUSIONS: These data suggest that ECM transplantation with RT effectively repairs VML by enhancing hypertrophy, angiogenesis, and myofiber infiltration throughout the entire ECM.
{"title":"Implantation of Decellularized Extracellular Matrix with Resistance Training Effectively Repairs a Volumetric Muscle Loss","authors":"Kwangjun Lee, Kwang-Seok Hong, W. Park","doi":"10.15857/ksep.2022.00276","DOIUrl":"https://doi.org/10.15857/ksep.2022.00276","url":null,"abstract":"PURPOSE: Skeletal muscle has remarkable regenerative capacity in most minor injuries induced by mechanical laceration, overstretching, and toxins. However, volumetric muscle loss (VML) injury, a large volume of muscle loss beyond the self-repair capacity, causes functional disability and morphological deformities. This study investigated the effects of myofiber injection into a decellularized extracellular matrix (ECM) and resistance training (RT) on skeletal muscle regeneration following VML injury.METHODS: 6-months-old male Fischer CDF rats and 2-months-old F344-Tg (UBC-EGFP) rats (myofiber donors) were used in this study. Approximately 20% of the mass of the lateral gastrocnemius (LGAS) was excised and replaced by ECM of similar dimensions. Thirty myofibers were injected into the injured region seven days post-injury. Ladder climbing (RT) was allowed 10 days post-defect surgery, and the rats were subjected to ladder climbing with a weight every third day for 6 weeks.RESULTS: After 56 days of recovery and exercise training, the cross-sectional area (CSA) of intact muscle in the EXE group (5,104±92 μm2) increased significantly compared to that in the ECM (4,657±79 μm2) group. The number of blood vessels larger than 20 μm in diameter, capillaries excluded, showed a significant difference between the ECM+EXE (34.25±4.2) and ECM (21.75±3.89) groups. A significant reduction of fibrosis in the ECM+EXE (44.50±1.6%) group was observed compared to the ECM (69.25±1.9%) and ECM+FIB+EXE (63.00±1.7%) groups. Moreover, the small muscle fiber area within the transplanted ECM was significantly larger in the ECM+EXE (1.37±0.03 mm2) than in both the ECM (0.49±0.01 mm2) and ECM+FIB (0.62±0.01 mm2) groups.CONCLUSIONS: These data suggest that ECM transplantation with RT effectively repairs VML by enhancing hypertrophy, angiogenesis, and myofiber infiltration throughout the entire ECM.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46959796","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 : 2022-08-31DOI: 10.15857/ksep.2022.00360
Se-Young Seon, Byoun-Jae Park
PURPOSE: This study aimed to investigate the correlation between repeated sprint ability (RSA) and Hoff test performance in high school soccer players.METHODS: Fourteen male high school football players participated in this study. After measuring body composition, the Bangsbo Sprint Test for RSA and Hoff test were performed. The tests were conducted in the field to create an experimental environment similar to that during actual training and competition.RESULTS: A significant correlation was observed between the fatigue index (FI) in the RSA and running distance in the Hoff test (p<.05). A high level of correlation between the performance distance and body fat percentage and muscle mass in the Hoff test was observed (p<.001). There was no significant relationship between the best and average RSA records using the Hoff test.CONCLUSIONS: It was confirmed that the running distance in the Hoff test developed for event specificity affects the FI in RSA. In subsequent studies, it will be necessary to examine the variables affecting the best and average RSA records.
{"title":"Correlation between Repeated Sprint Ability (RSA) and Hoff Test of High School Soccer Plyers","authors":"Se-Young Seon, Byoun-Jae Park","doi":"10.15857/ksep.2022.00360","DOIUrl":"https://doi.org/10.15857/ksep.2022.00360","url":null,"abstract":"PURPOSE: This study aimed to investigate the correlation between repeated sprint ability (RSA) and Hoff test performance in high school soccer players.METHODS: Fourteen male high school football players participated in this study. After measuring body composition, the Bangsbo Sprint Test for RSA and Hoff test were performed. The tests were conducted in the field to create an experimental environment similar to that during actual training and competition.RESULTS: A significant correlation was observed between the fatigue index (FI) in the RSA and running distance in the Hoff test (p<.05). A high level of correlation between the performance distance and body fat percentage and muscle mass in the Hoff test was observed (p<.001). There was no significant relationship between the best and average RSA records using the Hoff test.CONCLUSIONS: It was confirmed that the running distance in the Hoff test developed for event specificity affects the FI in RSA. In subsequent studies, it will be necessary to examine the variables affecting the best and average RSA records.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43735322","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 : 2022-08-31DOI: 10.15857/ksep.2022.00311
Kwangjun Lee, W. Park, Kwang-Seok Hong
PURPOSE: Minor skeletal muscle injuries can be repaired, but more extensive volumetric muscle loss (VML) leads to a permanent functional disability with ambiguous therapeutic outcomes, and reconstructive surgical procedures are constrained by donor tissue scarcity. This review assessed the considerable attention paid to biomaterials in healing damaged skeletal muscle.METHODS: A comprehensive search in PubMed, Web of Science, Google Scholar, and Wiley Online Library was conducted to obtain previous studies exploring the state of biocompatible tissue scaffolds for VML recovery.RESULTS: By regenerating the function of damaged skeletal muscle, tissue-engineered skeletal muscle construction could revolutionize the treatment of VML. However, transporting cells into the wounded muscle location presents a significant challenge because it may result in unfavorable immunological reactions. The development and validation of several biomaterials with varying physical and chemical natures to treat various muscle injuries have recently been undertaken to overcome this problem. This review discusses the relative benefits of satellite cells (SC), the most prevalent skeletal muscle stem cells employed to seed scaffolds.CONCLUSIONS: Biomaterials can be used with skeletal muscle stem cells and growth factors to repair VML because of their customizable and desirable physicochemical qualities. Owing to the capacity of SCs for self-renewal and their undifferentiated state, these cells are excellent candidates for cell therapy. A large gap exists between understanding SC behavior and how it can be used to repair and regenerate human skeletal muscle tissue. Thus, this review sought to portray the current knowledge on the lifespan of SCs and their involvement in exercise-induced muscle regeneration and hypertrophy.
目的:轻微的骨骼肌损伤可以修复，但更广泛的体积性肌肉损失(VML)导致永久性功能残疾，治疗结果不明确，重建手术手术受到供体组织稀缺的限制。这篇综述评估了生物材料在骨骼肌损伤愈合中的重要作用。方法:综合检索PubMed、Web of Science、谷歌Scholar和Wiley Online Library，获取有关VML修复生物相容性组织支架状态的前期研究。结果:通过再生受损骨骼肌的功能，组织工程骨骼肌构建可以彻底改变VML的治疗。然而，将细胞运送到受伤的肌肉部位是一个重大的挑战，因为它可能导致不利的免疫反应。为了克服这一问题，最近开发和验证了几种具有不同物理和化学性质的生物材料来治疗各种肌肉损伤。这篇综述讨论了卫星细胞(SC)的相对优势，卫星细胞是用于种子支架的最普遍的骨骼肌干细胞。结论:生物材料可用于骨骼肌干细胞和生长因子修复VML，因为它们具有可定制和理想的物理化学特性。由于SCs的自我更新能力和未分化状态，这些细胞是细胞治疗的优秀候选者。在理解SC行为和它如何用于修复和再生人类骨骼肌组织之间存在很大的差距。因此，这篇综述试图描述当前关于干细胞寿命及其参与运动诱导的肌肉再生和肥厚的知识。
{"title":"Therapeutic Sources of Skeletal Muscle Regeneration from Volumetric Muscle Loss: A Narrative Review","authors":"Kwangjun Lee, W. Park, Kwang-Seok Hong","doi":"10.15857/ksep.2022.00311","DOIUrl":"https://doi.org/10.15857/ksep.2022.00311","url":null,"abstract":"PURPOSE: Minor skeletal muscle injuries can be repaired, but more extensive volumetric muscle loss (VML) leads to a permanent functional disability with ambiguous therapeutic outcomes, and reconstructive surgical procedures are constrained by donor tissue scarcity. This review assessed the considerable attention paid to biomaterials in healing damaged skeletal muscle.METHODS: A comprehensive search in PubMed, Web of Science, Google Scholar, and Wiley Online Library was conducted to obtain previous studies exploring the state of biocompatible tissue scaffolds for VML recovery.RESULTS: By regenerating the function of damaged skeletal muscle, tissue-engineered skeletal muscle construction could revolutionize the treatment of VML. However, transporting cells into the wounded muscle location presents a significant challenge because it may result in unfavorable immunological reactions. The development and validation of several biomaterials with varying physical and chemical natures to treat various muscle injuries have recently been undertaken to overcome this problem. This review discusses the relative benefits of satellite cells (SC), the most prevalent skeletal muscle stem cells employed to seed scaffolds.CONCLUSIONS: Biomaterials can be used with skeletal muscle stem cells and growth factors to repair VML because of their customizable and desirable physicochemical qualities. Owing to the capacity of SCs for self-renewal and their undifferentiated state, these cells are excellent candidates for cell therapy. A large gap exists between understanding SC behavior and how it can be used to repair and regenerate human skeletal muscle tissue. Thus, this review sought to portray the current knowledge on the lifespan of SCs and their involvement in exercise-induced muscle regeneration and hypertrophy.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41789588","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 : 2022-08-31DOI: 10.15857/ksep.2022.00339
Jungjun Lim, Joon-Sik Kim, Yeonsoo Kim
PURPOSE: The purpose of this study was to examine the association between objectively measured physical activity and metabolic syndrome in Korean adults and older adults.METHODS: A total of 2,191 adults and older adults from the Korea National Health and Nutrition Examination Survey from 2014 to 2017 were analyzed. Participants were categorized into three groups (‘Inactive’, ‘Active’, ‘Highly active’) according to physical activity guidelines. A chi-square test was performed to confirm whether the physical activity guidelines were met according to metabolic syndrome and the difference between metabolic syndrome according to age group. Logistic regression was used to predict the relationship between physical activity and metabolic syndrome.RESULTS: The prevalence of metabolic syndrome differed according to whether physical activity guidelines were met in older adults, and the prevalence of metabolic syndrome and its risk factors varied according to age group. Compared to the Inactive group, the odds ratios (OR) for metabolic syndrome were 0.73 (95% confidence interval [CI]: 0.56-0.95) and 0.65 (95% CI: 0.47-0.88) in adults in the Active and Highly active groups, respectively; and 0.46 (95% CI: 0.28-0.78) and 0.39 (95% CI: 0.22-0.69) in older adults in the Active and Highly active groups, respectively.CONCLUSIONS: As the level of physical activity increased, the OR of having metabolic syndrome and its risk factors decreased: this relationship was stronger in older adults than in adults. Therefore, physical activity guidelines should be met to prevent and manage metabolic syndrome.
{"title":"Association between Physical Activity and Metabolic Syndrome in Korean Adults and Older Adults: Using Accelerometer Data from the Korea National Health and Nutrition Examination Survey, 2014-2017","authors":"Jungjun Lim, Joon-Sik Kim, Yeonsoo Kim","doi":"10.15857/ksep.2022.00339","DOIUrl":"https://doi.org/10.15857/ksep.2022.00339","url":null,"abstract":"PURPOSE: The purpose of this study was to examine the association between objectively measured physical activity and metabolic syndrome in Korean adults and older adults.METHODS: A total of 2,191 adults and older adults from the Korea National Health and Nutrition Examination Survey from 2014 to 2017 were analyzed. Participants were categorized into three groups (‘Inactive’, ‘Active’, ‘Highly active’) according to physical activity guidelines. A chi-square test was performed to confirm whether the physical activity guidelines were met according to metabolic syndrome and the difference between metabolic syndrome according to age group. Logistic regression was used to predict the relationship between physical activity and metabolic syndrome.RESULTS: The prevalence of metabolic syndrome differed according to whether physical activity guidelines were met in older adults, and the prevalence of metabolic syndrome and its risk factors varied according to age group. Compared to the Inactive group, the odds ratios (OR) for metabolic syndrome were 0.73 (95% confidence interval [CI]: 0.56-0.95) and 0.65 (95% CI: 0.47-0.88) in adults in the Active and Highly active groups, respectively; and 0.46 (95% CI: 0.28-0.78) and 0.39 (95% CI: 0.22-0.69) in older adults in the Active and Highly active groups, respectively.CONCLUSIONS: As the level of physical activity increased, the OR of having metabolic syndrome and its risk factors decreased: this relationship was stronger in older adults than in adults. Therefore, physical activity guidelines should be met to prevent and manage metabolic syndrome.","PeriodicalId":36291,"journal":{"name":"Exercise Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48428267","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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