Communications in kinesiology最新文献

筛选

英文中文

Time to retire the raw analysis of individual responses 个人答复原始分析该退休了

Communications in kinesiology Pub Date : 2024-07-11 DOI: 10.51224/cik.2024.57

David Borg, Arthur Henrique Bossi

引用次数: 0

Are Single Limb Hopping Scores the Same When Performed in a Physical Education Class Versus a Laboratory Setting in Uninjured Adolescents? 未受伤的青少年在体育课和实验室环境中进行单肢跳跃的得分是否相同？

Communications in kinesiology Pub Date : 2024-01-30 DOI: 10.51224/cik.2024.54

C. Girard, M. Del Bel, Virginie Bédard, Caroline Bradley, Andrea Comptour, Kelly O'Connor, S. Carsen, Daniel L. Benoit

{"title":"Are Single Limb Hopping Scores the Same When Performed in a Physical Education Class Versus a Laboratory Setting in Uninjured Adolescents?","authors":"C. Girard, M. Del Bel, Virginie Bédard, Caroline Bradley, Andrea Comptour, Kelly O'Connor, S. Carsen, Daniel L. Benoit","doi":"10.51224/cik.2024.54","DOIUrl":"https://doi.org/10.51224/cik.2024.54","url":null,"abstract":"This study compared the performance of adolescents (11-13 years old) in two environments with five single-limb hopping tasks. The purpose was to assess the reproducibility and responsiveness of single-limb hop tests in two environments (gymnasium and laboratory) for uninjured adolescents, and determine whether there are differences in baseline measures between males and females. Thirty-four participants (12 ± 0.3 years) were randomly assigned the gymnasium during a regularly scheduled physical education class or the laboratory and completed five single-limb hop tasks. Two weeks later, participants completed the tasks in the other location. The performances were evaluated for reproducibility (intra-class correlation coefficients [ICC], and standard errors of measurement [SEM]), and responsiveness (Bland-Altman analyses [BA], and smallest real difference [SRD]). Limb symmetry indices (LSI) were also calculated for each task. Two-way mixed ANOVAs examined location and sex differences. All hops were reproducible (ICC = 0.62-0.88) with SEMs ranging between 6.7-13.0% of the mean of the group. BA showed location differences for the triple hop on the dominant limb (d = -13.3 cm, p=0.03). SRDs ranged between 18.5-35.9% of the mean of the group for all hops. Males scored higher (percent difference (%D) = 9.9-21.4%, p<0.05) for all hops except the anterior hop on both limbs, the 6-meter timed hop and lateral hop on the non-dominant limb. LSIs were 93.5-102.6% and 94.4-101.7% for all hopping task for females and males, respectively. In conclusion, this battery of single-limb hop tests offer a reliable method for clinicians and researchers to assess the functional capacity of uninjured adolescents in various environments.","PeriodicalId":474289,"journal":{"name":"Communications in kinesiology","volume":"198 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140485505","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}

引用次数: 0

Limited Effects of Age on the Use of the Ankle and Counter-Rotation Mechanism in the Sagittal Plane 年龄对踝关节和矢状面反向旋转机制使用的有限影响

Communications in kinesiology Pub Date : 2023-05-02 DOI: 10.51224/cik.2023.46

Maud Van den Bogaart, Sjoerd Bruijn, Joke Spildooren, Jaap Van Dieën, Pieter Meyns

{"title":"Limited Effects of Age on the Use of the Ankle and Counter-Rotation Mechanism in the Sagittal Plane","authors":"Maud Van den Bogaart, Sjoerd Bruijn, Joke Spildooren, Jaap Van Dieën, Pieter Meyns","doi":"10.51224/cik.2023.46","DOIUrl":"https://doi.org/10.51224/cik.2023.46","url":null,"abstract":"During standing the center of mass (CoM) can be controlled relative to the base of support by applying ankle moments to shift the center of pressure (CoP mechanism). An additional mechanism is the counter-rotation mechanism, i.e., changing the angular momentum of segments around the CoM to change the direction of the ground reaction force. In this study, we assessed anteroposterior balance performance and the related use of these postural control mechanisms in children, younger and older adults. Sixteen children (6-9y), 17 younger adults (18-24y) and eight older adults (65-80y) performed bipedal upright standing trials of 16 seconds on a rigid surface and on three balance boards that could freely move in the sagittal plane, varying in height (15-19 cm). Full body kinematics were measured. Performance related outcome measures, i.e., the number of trials with balance loss and the Root Mean Square of the time series of the CoM acceleration (due to the CoP and counter-rotation mechanism) and the contributions of the CoP and counter-rotation mechanism to the CoM acceleration (in %) were calculated. Furthermore, selected kinematic measures, i.e., the orientation of the board and head and the Mean Power Frequency of board orientation and of CoM acceleration were calculated. Compared to younger adults, children and older adults showed a poorer balance performance. Across age groups and conditions, the contribution of the CoP mechanism to the total CoM acceleration was dominant, i.e., 95%-108%. The contribution of the counter-rotation mechanism was limited, i.e., 19%-31% (with totals higher than 100% indicating opposite effects of both mechanisms), since the counter-rotation mechanism would conflict with stabilizing the head in space. Furthermore, children did use the counter-rotation mechanism relatively more to accelerate the CoM compared to younger adults as they are possibly still learning to limit the contribution of the counter-rotation mechanism.","PeriodicalId":474289,"journal":{"name":"Communications in kinesiology","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135160701","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}

引用次数: 0