Purpose. this study aimed to verify the reliability of estimating ballet dancers’ postural stability during the unshod and the en pointe relevé position with a smartphone application Methods. the participants (13 ballet dancers, 22.4 ± 2.5 years of age) were tested in the unshod and the en pointe relevé position (YMED Balance test application, smartphone secured at the L5 level for centre of mass approximation, 10 trials for each condition, 10 seconds per trial, 2-minute intertrial break, arms relaxed at bodyside, gaze fixated at an eye-level target, preferred feet width and orientation). Paired t-tests examined the inter-condition differences. relative (intraclass correlation coefficient, Icc) and absolute (standard error of measurement, SEM, SEM%) reliability indices (for accumulated and paired trials) were computed for each condition (SPSS software v. 26.0, p < 0.05). Results. the total balance score and all centre of mass spatial measures indicated worse postural stability in the en pointe condition ( p < 0.05), with no significant temporal differences ( p > 0.05). the total body balance score was the most reliable measure (good to excellent Iccs, low to moderate SEM%) with a minimum of 8 trials ensuring reliability in both the unshod and the en pointe relevé positions. Conclusions. taken a minimum of 8 trials and the measure of total balance score, we may obtain a reliable estimation of ballet dancers’ postural stability in the unshod and the en pointe relevé position by using the YMED Balance test smartphone application.
目的。本研究旨在验证智能手机应用程序估计芭蕾舞者在脱鞋和足尖相关位置时的姿势稳定性的可靠性。参与者(13名芭蕾舞者，年龄22.4±2.5岁)在不穿鞋和脚尖相关的姿势下进行测试(YMED平衡测试应用程序，将智能手机固定在L5水平以近似质心，每种情况10次试验，每次试验10秒，两次试验之间休息2分钟，手臂放松于身体两侧，注视与眼睛平视的目标，首选的脚宽和方向)。配对t检验检验了条件间的差异。计算每个条件下的相对(类内相关系数，Icc)和绝对(计量标准误差，SEM, SEM%)信度指标(累积试验和配对试验)(SPSS软件v. 26.0, p < 0.05)。结果。总平衡评分和所有质心空间测量值均表明，穴位状态下的姿势稳定性较差(p < 0.05)，但时间差异无统计学意义(p < 0.05)。总的身体平衡分数是最可靠的测量(良好到优秀的Iccs，低到中等的SEM%)，至少有8个试验确保了在不穿鞋和不穿鞋的相关位置的可靠性。结论。使用YMED平衡测试智能手机应用程序，通过至少8次试验和总平衡分数的测量，我们可以获得芭蕾舞者在脱鞋和足点相关位置的姿势稳定性的可靠估计。
{"title":"Reliability of assessing ballet dancers’ postural stability in the unshod and the en pointe relevé position with a smartphone application","authors":"Fani Paderi, Analina A. Emmanouil, E. Rousanoglou","doi":"10.5114/hm.2022.109069","DOIUrl":"https://doi.org/10.5114/hm.2022.109069","url":null,"abstract":"Purpose. this study aimed to verify the reliability of estimating ballet dancers’ postural stability during the unshod and the en pointe relevé position with a smartphone application Methods. the participants (13 ballet dancers, 22.4 ± 2.5 years of age) were tested in the unshod and the en pointe relevé position (YMED Balance test application, smartphone secured at the L5 level for centre of mass approximation, 10 trials for each condition, 10 seconds per trial, 2-minute intertrial break, arms relaxed at bodyside, gaze fixated at an eye-level target, preferred feet width and orientation). Paired t-tests examined the inter-condition differences. relative (intraclass correlation coefficient, Icc) and absolute (standard error of measurement, SEM, SEM%) reliability indices (for accumulated and paired trials) were computed for each condition (SPSS software v. 26.0, p < 0.05). Results. the total balance score and all centre of mass spatial measures indicated worse postural stability in the en pointe condition ( p < 0.05), with no significant temporal differences ( p > 0.05). the total body balance score was the most reliable measure (good to excellent Iccs, low to moderate SEM%) with a minimum of 8 trials ensuring reliability in both the unshod and the en pointe relevé positions. Conclusions. taken a minimum of 8 trials and the measure of total balance score, we may obtain a reliable estimation of ballet dancers’ postural stability in the unshod and the en pointe relevé position by using the YMED Balance test smartphone application.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71103198","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}
Rodrigo Ramirez-Campillo, David Andrade, F. Clemente, J. Afonso, Alejandro Pérez-Castilla, P. Gentil
Purpose. The process in which specific exercises reduce localized adipose tissue depots (targeted fat loss) and modify fat distribution is commonly termed spot reduction. According to this long-held popular belief, exercising a limb would lead to greater reduction in the adjacent adipose tissue in comparison with the contralateral limb. Aside from popular wisdom, scientific evidence from the 20 th and 21 st century seems to offer inconclusive results. The study aim was to summarize peer-reviewed literature assessing the effects of unilateral limb training, compared with the contralateral limb, on the localized adipose tissue depots in healthy participants, and to meta-analyse its results. Methods. We followed the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. We searched PubMed, Web of Science, and Scopus electronic databases using several relevant keyword combinations. Independent experts were contacted to help identify additional relevant articles. Following the PICOS approach, we included controlled studies that incorporated a localized exercise intervention (i.e., single-leg training) to cohorts of healthy participants (i.e., no restriction for fitness, age, or sex) compared with a control condition (i.e., contralateral limb), where the main outcome was the pre-to-post-intervention change of localized fat. The methodological quality of the studies was assessed with the Physiotherapy Evidence Database scale. Pre- and post-intervention means ± standard deviations of the fat-related outcome in the trained and control groups (limbs) were converted to Hedges’ g effect size ( ES ; with 95% confidence intervals [CI]) by using a random-effects model. The impact of heterogeneity was assessed with the I 2 statistic. Extended Egger’s test served to explore the risk of reporting bias. The statistical significance threshold was set at p < 0.05. Results. From 1833 search records initially identified, 13 were included in the meta-analysis, involving 1158 male and female participants (age, 14–71 years). The 13 studies achieved a high methodological quality, and presented results with low heterogeneity ( I 2 = 24.3%) and no bias (Egger’s test p = 0.133). The meta-analysis involved 37 comparisons, with 17 of these favouring (i.e., greater reduction of localized fat) the trained limb, and 20 favouring the untrained limb, but the ES ranged between –1.21 and 1.07. The effects were consistent, with a pooled ES = –0.03, 95% CI: –0.10 to 0.05, p = 0.508, meaning that spot reduction was not observed. Conclusions. Localized muscle training had no effect on localized adipose tissue depots, i.e., there was no spot reduction, regardless of the characteristics of the population and of the exercise program. The popular belief concerning spot reduction is probably derived from wishful thinking and convenient marketing strategies, such as influencers seeking increased popularity and procedure sellers interested in increasing advertising
{"title":"A proposed model to test the hypothesis of exerciseinduced localized fat reduction (spot reduction), including a systematic review with meta-analysis","authors":"Rodrigo Ramirez-Campillo, David Andrade, F. Clemente, J. Afonso, Alejandro Pérez-Castilla, P. Gentil","doi":"10.5114/hm.2022.110373","DOIUrl":"https://doi.org/10.5114/hm.2022.110373","url":null,"abstract":"Purpose. The process in which specific exercises reduce localized adipose tissue depots (targeted fat loss) and modify fat distribution is commonly termed spot reduction. According to this long-held popular belief, exercising a limb would lead to greater reduction in the adjacent adipose tissue in comparison with the contralateral limb. Aside from popular wisdom, scientific evidence from the 20 th and 21 st century seems to offer inconclusive results. The study aim was to summarize peer-reviewed literature assessing the effects of unilateral limb training, compared with the contralateral limb, on the localized adipose tissue depots in healthy participants, and to meta-analyse its results. Methods. We followed the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. We searched PubMed, Web of Science, and Scopus electronic databases using several relevant keyword combinations. Independent experts were contacted to help identify additional relevant articles. Following the PICOS approach, we included controlled studies that incorporated a localized exercise intervention (i.e., single-leg training) to cohorts of healthy participants (i.e., no restriction for fitness, age, or sex) compared with a control condition (i.e., contralateral limb), where the main outcome was the pre-to-post-intervention change of localized fat. The methodological quality of the studies was assessed with the Physiotherapy Evidence Database scale. Pre- and post-intervention means ± standard deviations of the fat-related outcome in the trained and control groups (limbs) were converted to Hedges’ g effect size ( ES ; with 95% confidence intervals [CI]) by using a random-effects model. The impact of heterogeneity was assessed with the I 2 statistic. Extended Egger’s test served to explore the risk of reporting bias. The statistical significance threshold was set at p < 0.05. Results. From 1833 search records initially identified, 13 were included in the meta-analysis, involving 1158 male and female participants (age, 14–71 years). The 13 studies achieved a high methodological quality, and presented results with low heterogeneity ( I 2 = 24.3%) and no bias (Egger’s test p = 0.133). The meta-analysis involved 37 comparisons, with 17 of these favouring (i.e., greater reduction of localized fat) the trained limb, and 20 favouring the untrained limb, but the ES ranged between –1.21 and 1.07. The effects were consistent, with a pooled ES = –0.03, 95% CI: –0.10 to 0.05, p = 0.508, meaning that spot reduction was not observed. Conclusions. Localized muscle training had no effect on localized adipose tissue depots, i.e., there was no spot reduction, regardless of the characteristics of the population and of the exercise program. The popular belief concerning spot reduction is probably derived from wishful thinking and convenient marketing strategies, such as influencers seeking increased popularity and procedure sellers interested in increasing advertising","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71103729","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}
I. Ferreira, Jefferson Santos, M. Souza, A. Teixeira, Augusto Barbosa, F. Nakamura, A. Barbosa
Purpose. This study assessed the isometric torque, hamstring-to-quadriceps ratio, and jump performance among three age groups of soccer players. Methods. 67 male players were divided by chronological age into the under-17 (U17: n = 29), under-20 (U20: n = 22), and above-20-year (PRO: n = 16) groups. They performed countermovement (CMJ) and squat (SJ) jumps. Also, maximal isometric contractions during knee flexion and extension for right (R-TOR) and left limb (L-TOR) torque were assessed. Hamstrings-quadriceps (H:Q) and CMJ:SJ ratios were determined. Results. Compared with U17 and U20, PRO showed higher CMJ ( = 20% and 14%; both p < 0.01) and SJ ( = 19% and 13%; p < 0.01 and p = 0.02, respectively), and higher absolute R-TOR and L-TOR during knee extension ( = 40% and 58%; both p < 0.01). PRO exhibited higher absolute L-TOR and R-TOR during knee flexion than U17 ( = 22% and 26%; p = 0.04 and p < 0.01, respectively). Between-group differences were not detected in normalized torque, except for knee extension R-TOR (PRO > U17; p = 0.04). Greater differences for quadriceps absolute torque (effect size: 1.37–1.46) were observed in the hamstrings (effect size: 0.30–0.92) between PRO and U17. No differences were found for any H:Q torque ratio, but moderate effect sizes (0.71–0.75) were verified between PRO and the other groups. No differences were found for CMJ:SJ ratio. Conclusions. PRO players are more powerful than U17 and U20. Differences in strength level between PRO and U17/U20 are muscle-dependent. The larger strength development of quadriceps over hamstrings can result in lower isometric H:Q torque ratio for PRO.
目的。本研究评估了三个年龄组足球运动员的等距扭矩、腘绳肌与股四头肌的比率和跳跃表现。方法:67名男性运动员按年龄分为17岁以下组(U17: n = 29)、20岁以下组(U20: n = 22)和20岁以上组(PRO: n = 16)。他们进行了反动作(CMJ)和蹲跳(SJ)。此外，还评估了膝关节屈伸时右(R-TOR)和左肢体(L-TOR)扭矩的最大等距收缩。测定腘绳肌-股四头肌(H:Q)和CMJ:SJ比值。结果。与U17和U20相比，PRO具有更高的CMJ(分别为20%和14%);p < 0.01)和SJ(分别为19%和13%;p < 0.01和p = 0.02)，膝关节伸展时绝对R-TOR和L-TOR较高(分别为40%和58%;p < 0.01)。PRO在膝关节屈曲时的绝对L-TOR和R-TOR高于U17(分别为22%和26%);P = 0.04和P < 0.01)。除膝关节伸展R-TOR (PRO > U17;P = 0.04)。在PRO和U17之间，腘绳肌绝对扭矩(效应值:0.30-0.92)的差异更大(效应值:1.37-1.46)。任何H:Q扭矩比均未发现差异，但PRO组与其他组之间的效应大小适中(0.71-0.75)。CMJ:SJ比值无差异。结论。职业选手比U17和U20选手更强大。PRO和U17/U20之间的力量水平差异取决于肌肉。股四头肌比腘绳肌更大的力量发展可以导致PRO更低的等距H:Q扭矩比。
{"title":"Isometric knee torque, quadriceps-hamstrings ratio, and jumping parameters in Brazilian soccer players of different age categories","authors":"I. Ferreira, Jefferson Santos, M. Souza, A. Teixeira, Augusto Barbosa, F. Nakamura, A. Barbosa","doi":"10.5114/hm.2022.107972","DOIUrl":"https://doi.org/10.5114/hm.2022.107972","url":null,"abstract":"Purpose. This study assessed the isometric torque, hamstring-to-quadriceps ratio, and jump performance among three age groups of soccer players. Methods. 67 male players were divided by chronological age into the under-17 (U17: n = 29), under-20 (U20: n = 22), and above-20-year (PRO: n = 16) groups. They performed countermovement (CMJ) and squat (SJ) jumps. Also, maximal isometric contractions during knee flexion and extension for right (R-TOR) and left limb (L-TOR) torque were assessed. Hamstrings-quadriceps (H:Q) and CMJ:SJ ratios were determined. Results. Compared with U17 and U20, PRO showed higher CMJ ( = 20% and 14%; both p < 0.01) and SJ ( = 19% and 13%; p < 0.01 and p = 0.02, respectively), and higher absolute R-TOR and L-TOR during knee extension ( = 40% and 58%; both p < 0.01). PRO exhibited higher absolute L-TOR and R-TOR during knee flexion than U17 ( = 22% and 26%; p = 0.04 and p < 0.01, respectively). Between-group differences were not detected in normalized torque, except for knee extension R-TOR (PRO > U17; p = 0.04). Greater differences for quadriceps absolute torque (effect size: 1.37–1.46) were observed in the hamstrings (effect size: 0.30–0.92) between PRO and U17. No differences were found for any H:Q torque ratio, but moderate effect sizes (0.71–0.75) were verified between PRO and the other groups. No differences were found for CMJ:SJ ratio. Conclusions. PRO players are more powerful than U17 and U20. Differences in strength level between PRO and U17/U20 are muscle-dependent. The larger strength development of quadriceps over hamstrings can result in lower isometric H:Q torque ratio for PRO.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71102294","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}
T. Caires, G. Luvizutto, P. Vieira, Gabriel Jablonski, R. Bazan, A. Andrade, Luciane Souza
Purpose. Visual choice reaction time can be measured in reaching, which is an important task to investigate after stroke owing to its high clinical importance in activities of daily living. The study aim was to evaluate the visual choice reaction time during reaching tasks in the ipsilateral and contralateral spaces before and after a single training session of choice reaction time in patients after a mild stroke. Methods. The cross-sectional study involved 7 individuals after a mild stroke. The visual choice reaction time was evaluated during reaching in the affected and unaffected sides in the ipsilateral and contralateral spaces. All individuals trained the choice reaction time during a functional reaching task in a single session. In the training, 6 circles were used in a randomized sequence in 5 blocks, with 10 stimuli per block, for a total of 50 repetitions. Results. There was a significant reduction in the choice reaction time for the unaffected side in the ipsilateral space after training (p = 0.041). The other task conditions did not show a statistical difference, but a clinical relevance based on Cohen’s d (d > 0.60). Conclusions. A single training session can decrease the choice reaction time for the affected side during tasks in the ipsilateral space after a mild stroke.
目的。视觉选择反应时间在脑卒中患者的日常生活活动中具有重要的临床意义，是脑卒中后研究的一项重要任务。本研究的目的是评估轻度中风患者在单次选择反应时间训练前后在同侧和对侧空间到达任务时的视觉选择反应时间。方法。这项横断面研究涉及7名轻度中风患者。在同侧和对侧空间的受影响侧和未受影响侧的视觉选择反应时间进行评估。所有被试都在一个单一的会话中训练了在功能性伸手任务中的选择反应时间。在训练中，6个圆圈按随机顺序分成5个块，每个块10个刺激，共重复50次。结果。训练后，同侧空间中未受影响侧的选择反应时间显著减少(p = 0.041)。其他任务条件没有显示出统计学差异，但基于Cohen 's d (d = 0.60)的临床相关性。结论。在轻度中风后，单次训练可以减少患侧在同侧空间任务中的选择反应时间。
{"title":"A single training session of visual choice reaction time after mild stroke: a proof of concept","authors":"T. Caires, G. Luvizutto, P. Vieira, Gabriel Jablonski, R. Bazan, A. Andrade, Luciane Souza","doi":"10.5114/hm.2021.106168","DOIUrl":"https://doi.org/10.5114/hm.2021.106168","url":null,"abstract":"Purpose. Visual choice reaction time can be measured in reaching, which is an important task to investigate after stroke owing to its high clinical importance in activities of daily living. The study aim was to evaluate the visual choice reaction time during reaching tasks in the ipsilateral and contralateral spaces before and after a single training session of choice reaction time in patients after a mild stroke. Methods. The cross-sectional study involved 7 individuals after a mild stroke. The visual choice reaction time was evaluated during reaching in the affected and unaffected sides in the ipsilateral and contralateral spaces. All individuals trained the choice reaction time during a functional reaching task in a single session. In the training, 6 circles were used in a randomized sequence in 5 blocks, with 10 stimuli per block, for a total of 50 repetitions. Results. There was a significant reduction in the choice reaction time for the unaffected side in the ipsilateral space after training (p = 0.041). The other task conditions did not show a statistical difference, but a clinical relevance based on Cohen’s d (d > 0.60). Conclusions. A single training session can decrease the choice reaction time for the affected side during tasks in the ipsilateral space after a mild stroke.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71100527","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}
Carla Gonçalves, P. Bezerra, F. Clemente, C. Vila-Chã, C. Leão, A. Brandão, J. Cancela
Purpose. The objectives were to analyse differences of static and dynamic balance between sexes and test the correlations between static and dynamic balance measures. Methods. The study involved 77 physically active adults, university students (age: 19.1 ± 1.1 years; height: 170.2 ± 9.2 cm; body mass: 64.1 ± 10.7 kg). Static balance was assessed with a force platform under Romberg conditions: a foam surface, eyes open (EOFS); eyes closed (ECFS); challenging the visual-vestibular system (CVVS). The Y balance Test (YbT) evaluated dynamic balance in anterior, posteromedial, and posterolateral directions. One-way ANOVA examined potential differences between sexes, and the Pearson product-moment test verified the correlations between YbT and static balance measures. Results. Sex differences were found for all conditions in static balance variables: ellipse area (EA), centre of pressure displacement anteroposterior (DAP) and mediolateral (DML), mean velocity anteroposterior (VAP) and mediolateral (VML), total mean velocity (TV). Females presented a better stability index than males for EOFS (25% DAP, 20% DML, 30% VAP, 21% VML, 19% TV), ECFS (26% DAP, 32% DML, 28% VAP, 32% VML, 32% TV), and CVVS (27% EA, 26% DAP, 19% DML, 17% VAP, 20% VML, 18% TV). Males demonstrated 6% better performance on YbT posterolateral. Correlation tests revealed small to moderate correlations between static and dynamic balance, except for a large positive correlation between YbT anterior and sway area under the CVVS condition [ r = 0.54 (0.19; 0.77)] for women. Conclusions. The findings indicate a weak relationship between static and dynamic balance in controlling posture.
{"title":"The relationship between static and dynamic balance in active young adults","authors":"Carla Gonçalves, P. Bezerra, F. Clemente, C. Vila-Chã, C. Leão, A. Brandão, J. Cancela","doi":"10.5114/hm.2021.106165","DOIUrl":"https://doi.org/10.5114/hm.2021.106165","url":null,"abstract":"Purpose. The objectives were to analyse differences of static and dynamic balance between sexes and test the correlations between static and dynamic balance measures. Methods. The study involved 77 physically active adults, university students (age: 19.1 ± 1.1 years; height: 170.2 ± 9.2 cm; body mass: 64.1 ± 10.7 kg). Static balance was assessed with a force platform under Romberg conditions: a foam surface, eyes open (EOFS); eyes closed (ECFS); challenging the visual-vestibular system (CVVS). The Y balance Test (YbT) evaluated dynamic balance in anterior, posteromedial, and posterolateral directions. One-way ANOVA examined potential differences between sexes, and the Pearson product-moment test verified the correlations between YbT and static balance measures. Results. Sex differences were found for all conditions in static balance variables: ellipse area (EA), centre of pressure displacement anteroposterior (DAP) and mediolateral (DML), mean velocity anteroposterior (VAP) and mediolateral (VML), total mean velocity (TV). Females presented a better stability index than males for EOFS (25% DAP, 20% DML, 30% VAP, 21% VML, 19% TV), ECFS (26% DAP, 32% DML, 28% VAP, 32% VML, 32% TV), and CVVS (27% EA, 26% DAP, 19% DML, 17% VAP, 20% VML, 18% TV). Males demonstrated 6% better performance on YbT posterolateral. Correlation tests revealed small to moderate correlations between static and dynamic balance, except for a large positive correlation between YbT anterior and sway area under the CVVS condition [ r = 0.54 (0.19; 0.77)] for women. Conclusions. The findings indicate a weak relationship between static and dynamic balance in controlling posture.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71100810","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}
F. Clemente, Rafael Oliveira, A. Kawczyński, Ana Filipa Silva, Zeki Akyildiz, M. Yıldız, İsa Sağıroğlu
Purpose. This study compares the physiological demands of 30-15 Intermittent Fitness Test (30-15IFT), Yo-Yo Intermittent Recovery Test level 1 (YYIRT), and VAMEVAL test as related to training and match demands among youth soccer players. Methods. Overall, 12 under-19 male soccer players (18.21 ± 0.34 years old) were monitored over 3 consecutive weeks for heart rate (HR) responses during training sessions and matches. During this period, they were assessed with 30-15IFT, YYIRT, and VAMEVAL. The measures were taken on the same day of the week to ensure replicable conditions between the tests. Results. The Friedman test revealed significant differences in the average HR ( p = 0.006), time in HR zone 3 ( p < 0.001), and time in HR zone 4 ( p = 0.039) between the tests. Considering the representativeness of the tests in comparison with training sessions and matches, both 30-15IFT and VAMEVAL corresponded to 48% and 46% of the training session load 3 days before the match day (936 ± 447 s) and on the match day (831 ± 533 s), respectively. Conclusions. YYIRT imposed greater time exposure to high HR intensities (in the zones of 80–100% of HR maximum) than VAMEVAL and 30-15IFT. Moreover, the multistage fitness tests corresponded to slightly more than half of the time in which a player was exposed to 80% and 100% of HR maximum during a regular training session and match day. These findings may assist coaches in understanding how to incorporate intermittent fitness tests within training in order to accurately replicate HR responses of match conditions.
{"title":"Integrating field-based tests into weekly soccer training sessions: a comparison of physiological demands of three progressive multistage fitness tests and regular training demands","authors":"F. Clemente, Rafael Oliveira, A. Kawczyński, Ana Filipa Silva, Zeki Akyildiz, M. Yıldız, İsa Sağıroğlu","doi":"10.5114/hm.2023.114751","DOIUrl":"https://doi.org/10.5114/hm.2023.114751","url":null,"abstract":"Purpose. This study compares the physiological demands of 30-15 Intermittent Fitness Test (30-15IFT), Yo-Yo Intermittent Recovery Test level 1 (YYIRT), and VAMEVAL test as related to training and match demands among youth soccer players. Methods. Overall, 12 under-19 male soccer players (18.21 ± 0.34 years old) were monitored over 3 consecutive weeks for heart rate (HR) responses during training sessions and matches. During this period, they were assessed with 30-15IFT, YYIRT, and VAMEVAL. The measures were taken on the same day of the week to ensure replicable conditions between the tests. Results. The Friedman test revealed significant differences in the average HR ( p = 0.006), time in HR zone 3 ( p < 0.001), and time in HR zone 4 ( p = 0.039) between the tests. Considering the representativeness of the tests in comparison with training sessions and matches, both 30-15IFT and VAMEVAL corresponded to 48% and 46% of the training session load 3 days before the match day (936 ± 447 s) and on the match day (831 ± 533 s), respectively. Conclusions. YYIRT imposed greater time exposure to high HR intensities (in the zones of 80–100% of HR maximum) than VAMEVAL and 30-15IFT. Moreover, the multistage fitness tests corresponded to slightly more than half of the time in which a player was exposed to 80% and 100% of HR maximum during a regular training session and match day. These findings may assist coaches in understanding how to incorporate intermittent fitness tests within training in order to accurately replicate HR responses of match conditions.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71104271","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}
Adriano Lima Alves, Igor Soalheiro, João Gustavo Claudino, Gerson Oliveira Rocha, D. Boullosa, André Jafeth Alves, E. Pimenta
Purpose. Exercise-associated muscle cramps (EAMC) are characterized by intense pain and involuntary contractions of a single muscle or muscle group. While EAMCs may occur during and after exercise, their precise aetiology remains unknown. However, there are some potential risk factors, as the workload of physical training previously performed. The purpose of this case report was to evaluate the acute:chronic workload ratio (ACWR) and creatine kinase (CK) concentrations in a professional soccer player to verify the potential influence of recent training history on an extreme EAMC episode and subsequent muscle damage. Methods. A 21-year-old professional soccer player (body fat: 6.5%; body mass: 76 kg; height: 1.76 m) who experienced an extreme EAMC episode after the end of an official soccer match was monitored with session rating of perceived exertion before and after the EAMC episode and with post-match CK concentrations. Results. ACWR revealed several spikes on the days before the match, with the highest one observed on the match day. The CK concentrations recorded 35 and 53 hours after the EAMC episode were 262% and 182% higher, respectively, than the maximal CK concentrations recorded during the season (703 U/l). Conclusions. This case report illustrates, for the first time, how workload spikes, monitored with ACWR, preceded an extreme EAMC episode that was followed by an exacerbated muscle damage response. Some insights are provided in this case report for practitioners working in professional soccer to help them better manage similar cases.
{"title":"Exercise-associated muscle cramps and creatine kinase responses after workload spikes in a professional soccer player: a case study","authors":"Adriano Lima Alves, Igor Soalheiro, João Gustavo Claudino, Gerson Oliveira Rocha, D. Boullosa, André Jafeth Alves, E. Pimenta","doi":"10.5114/hm.2023.111549","DOIUrl":"https://doi.org/10.5114/hm.2023.111549","url":null,"abstract":"Purpose. Exercise-associated muscle cramps (EAMC) are characterized by intense pain and involuntary contractions of a single muscle or muscle group. While EAMCs may occur during and after exercise, their precise aetiology remains unknown. However, there are some potential risk factors, as the workload of physical training previously performed. The purpose of this case report was to evaluate the acute:chronic workload ratio (ACWR) and creatine kinase (CK) concentrations in a professional soccer player to verify the potential influence of recent training history on an extreme EAMC episode and subsequent muscle damage. Methods. A 21-year-old professional soccer player (body fat: 6.5%; body mass: 76 kg; height: 1.76 m) who experienced an extreme EAMC episode after the end of an official soccer match was monitored with session rating of perceived exertion before and after the EAMC episode and with post-match CK concentrations. Results. ACWR revealed several spikes on the days before the match, with the highest one observed on the match day. The CK concentrations recorded 35 and 53 hours after the EAMC episode were 262% and 182% higher, respectively, than the maximal CK concentrations recorded during the season (703 U/l). Conclusions. This case report illustrates, for the first time, how workload spikes, monitored with ACWR, preceded an extreme EAMC episode that was followed by an exacerbated muscle damage response. Some insights are provided in this case report for practitioners working in professional soccer to help them better manage similar cases.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71103986","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}
P. Marconcin, A. Ihle, Gerson Ferrari, É. Gouveia, M. Peralta, Thiago Santos, A. Marques
Purpose. Physical activity is associated with lower odds of depression symptoms among older adults. However, little is known about the effect of changing physical activity behaviour on depressive symptoms. The present study aimed to analyse the effects of changing physical activity trajectory on depressive symptoms in older people. Methods. Data from the Survey of Health, Ageing and Retirement in Europe wave 5 and wave 6 were analysed. The EURO-D 12-item scale measured depressive symptoms, and physical activity (of moderate and vigorous intensity) was self-reported. Multivariate binary logistic regressions were conducted to assess the association between physical activity and depression symptoms. Results. The study involved 6431 participants (mean age: 72.7 years). Moderate and vigorous physical activity was significantly associated with lower odds of depression symptoms in men and women. Moderate physical activity, performed once a week (men: OR = 0.31, 95% CI: 0.21–0.45; women: OR = 0.67, 95% CI: 0.54–0.84) and more than once a week (men: OR = 0.41, 95% CI: 0.32–0.52; women: OR = 0.56, 95% CI: 0.47–0.66), decreased the odds of having depression compared with remaining less active. Similar results were seen for vigorous physical activity in both men and women. Conclusions. Moderate-to-vigorous physical activity, undertaken at least once a week, is a safe and feasible behaviour to deal with depressive symptoms among older adults.
{"title":"The effect of changes in physical activity behaviour on depressive symptoms among European older adults","authors":"P. Marconcin, A. Ihle, Gerson Ferrari, É. Gouveia, M. Peralta, Thiago Santos, A. Marques","doi":"10.5114/hm.2023.115037","DOIUrl":"https://doi.org/10.5114/hm.2023.115037","url":null,"abstract":"Purpose. Physical activity is associated with lower odds of depression symptoms among older adults. However, little is known about the effect of changing physical activity behaviour on depressive symptoms. The present study aimed to analyse the effects of changing physical activity trajectory on depressive symptoms in older people. Methods. Data from the Survey of Health, Ageing and Retirement in Europe wave 5 and wave 6 were analysed. The EURO-D 12-item scale measured depressive symptoms, and physical activity (of moderate and vigorous intensity) was self-reported. Multivariate binary logistic regressions were conducted to assess the association between physical activity and depression symptoms. Results. The study involved 6431 participants (mean age: 72.7 years). Moderate and vigorous physical activity was significantly associated with lower odds of depression symptoms in men and women. Moderate physical activity, performed once a week (men: OR = 0.31, 95% CI: 0.21–0.45; women: OR = 0.67, 95% CI: 0.54–0.84) and more than once a week (men: OR = 0.41, 95% CI: 0.32–0.52; women: OR = 0.56, 95% CI: 0.47–0.66), decreased the odds of having depression compared with remaining less active. Similar results were seen for vigorous physical activity in both men and women. Conclusions. Moderate-to-vigorous physical activity, undertaken at least once a week, is a safe and feasible behaviour to deal with depressive symptoms among older adults.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71104086","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}
Jan-Paul Jelmer De Jong, Fabio Giuliano Caetano, Laura Maria Saskia De Jong, Vitor Panula da Silva, Murilo José de Oliveira Bueno, P. R. Pereira Santiago, L. H. Palucci Vieira, F. Nakamura, Felipe Arruda Moura
Purpose. this study aimed to investigate the influence of the outfield goalkeeper game situation on the running performance of teammates and opponent players during professional futsal matches. Methods. the movement trajectories of 126 professional players during 6 official matches were analysed with a videobased tracking system (30 Hz). Distance covered and percentage of distance covered in different speed ranges were calculated to identify differences per team and per sub-phase of the game (traditional vs. outfield goalkeeper situation). Results. the teammates of the outfield goalkeeper spent a higher percentage of the distance covered in the standing and walking speed range (36.27 ± 15.38%) compared with the teammates of the traditional goalkeeper (31.44 ± 7.74%). the outfield goalkeeper spent a smaller percentage of the distance covered in the standing and walking range (41.13 ± 10.86% vs. 80.77 ± 4.30%) and a higher percentage in the lowand medium-intensity running range (31.59 ± 5.59% vs. 15.07 ± 2.74% and 14.33 ± 3.90% vs. 2.50 ± 1.19%, respectively), as well as covered a greater distance (77.41 ± 16.00 m/min) than the traditional goalkeeper (33.81 ± 3.66 m/min). Conclusions. these findings provide coaches with a background concerning the requirements during the outfield goalkeeper situation as guidelines for final exercises in training sessions.
{"title":"The influence of the futsal outfield goalkeeper on players running performance","authors":"Jan-Paul Jelmer De Jong, Fabio Giuliano Caetano, Laura Maria Saskia De Jong, Vitor Panula da Silva, Murilo José de Oliveira Bueno, P. R. Pereira Santiago, L. H. Palucci Vieira, F. Nakamura, Felipe Arruda Moura","doi":"10.5114/hm.2022.107977","DOIUrl":"https://doi.org/10.5114/hm.2022.107977","url":null,"abstract":"Purpose. this study aimed to investigate the influence of the outfield goalkeeper game situation on the running performance of teammates and opponent players during professional futsal matches. Methods. the movement trajectories of 126 professional players during 6 official matches were analysed with a videobased tracking system (30 Hz). Distance covered and percentage of distance covered in different speed ranges were calculated to identify differences per team and per sub-phase of the game (traditional vs. outfield goalkeeper situation). Results. the teammates of the outfield goalkeeper spent a higher percentage of the distance covered in the standing and walking speed range (36.27 ± 15.38%) compared with the teammates of the traditional goalkeeper (31.44 ± 7.74%). the outfield goalkeeper spent a smaller percentage of the distance covered in the standing and walking range (41.13 ± 10.86% vs. 80.77 ± 4.30%) and a higher percentage in the lowand medium-intensity running range (31.59 ± 5.59% vs. 15.07 ± 2.74% and 14.33 ± 3.90% vs. 2.50 ± 1.19%, respectively), as well as covered a greater distance (77.41 ± 16.00 m/min) than the traditional goalkeeper (33.81 ± 3.66 m/min). Conclusions. these findings provide coaches with a background concerning the requirements during the outfield goalkeeper situation as guidelines for final exercises in training sessions.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71102200","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}
J. Leme, Cristiane Regina Coelho Candido, Vitor Nascimento, J. Dascal, V. H. Okazaki
Purpose. The Unstable Platform for Balance Analysis (UP-balance) has been used in several studies to evaluate different situations of balance and constraints. However, the reliability of its measurements has not been analysed yet. Therefore, the present study investigated the reliability of the measures provided by UP-balance in young adults in bipedal posture with and without vision. Methods. For such analysis, 30 young adults, male and female (mean age: 22.9 years; SD = 3.8 years), performed 3 attempts of the task which consisted in maintaining balance on an UP-balance on a bipedal base for 20 seconds, with and without visual information, with perturbations in the medial-lateral and anterior-posterior directions. Results. The UP-balance variables presented high inter-trial reliability (Icc > 0.76; p < 0.05), except for balance time in the anterior-posterior direction and non-vision condition, which exhibited moderate inter-trial reliability (Icc = 0.73; p < 0.05). Conclusions. UP-balance seemed to be a reliable instrument for the analysis of balance in situations of instability on a base support.
{"title":"The reliability of measures provided by the Unstable Platform for Balance Analysis in young adults with and without visual information","authors":"J. Leme, Cristiane Regina Coelho Candido, Vitor Nascimento, J. Dascal, V. H. Okazaki","doi":"10.5114/hm.2022.107978","DOIUrl":"https://doi.org/10.5114/hm.2022.107978","url":null,"abstract":"Purpose. The Unstable Platform for Balance Analysis (UP-balance) has been used in several studies to evaluate different situations of balance and constraints. However, the reliability of its measurements has not been analysed yet. Therefore, the present study investigated the reliability of the measures provided by UP-balance in young adults in bipedal posture with and without vision. Methods. For such analysis, 30 young adults, male and female (mean age: 22.9 years; SD = 3.8 years), performed 3 attempts of the task which consisted in maintaining balance on an UP-balance on a bipedal base for 20 seconds, with and without visual information, with perturbations in the medial-lateral and anterior-posterior directions. Results. The UP-balance variables presented high inter-trial reliability (Icc > 0.76; p < 0.05), except for balance time in the anterior-posterior direction and non-vision condition, which exhibited moderate inter-trial reliability (Icc = 0.73; p < 0.05). Conclusions. UP-balance seemed to be a reliable instrument for the analysis of balance in situations of instability on a base support.","PeriodicalId":35354,"journal":{"name":"Human Movement","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71102264","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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