Relation between lower limb comfort and performance in elite footballers |
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| Authors: | Michael Kinchington Kevin Ball Geraldine Naughton |
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| Affiliation: | 1. School of Human Movement, Recreation & Performance, Victoria University, C/o Suite 1003 Level 10 MLC Centre, Martin Place, Sydney 2000, Australia;2. School of Human Movement, Recreation & Performance, Victoria University, P.O. Box 14428, Melbourne 8001, Australia;3. The Centre of Physical Activity Across the Lifespan, School of Exercise Science, Australian Catholic University, 115 Victoria Parade, Fitzroy, Victoria 3065, Australia;1. Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA;2. Department of Cardiovascular Surgery, Mayo Clinic, Rochester, MN, USA;1. Faculty of Medicine, Laval University, 1050 Avenue de la Médecine, Quebec City, QC, G1V 0A6, Canada;2. Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec Rehabilitation Institute, 525 Boulevard Wilfrid-Hamel, Quebec City, QC, G1M 2S8, Canada;3. The Running Clinic, C.P. 1075, Lac-Beauport, Quebec City, QC, G3B 2J8, Canada;1. National and Kapodistrian University of Athens, Faculty of Geology and Geoenvironment, Department of Geophysics and Geothermy, Greece;2. Laboratory of Geophysics and Seismology, Technological Educational Institute of Crete, Chania, GR 73133 Crete, Greece;1. Department of Physiotherapy, Monash University, Melbourne, Australia;2. Department of Paramedicine, Monash University, Melbourne, Australia;3. Peninsula Health, Melbourne, Victoria, Australia |
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| Abstract: | ObjectivesSuccesses of the professional athlete as individuals and team, across codes of football are contingent upon performance measures. The aim of the study was to examine associations between comfort and performance.DesignProspective measures of lower limb comfort and coach rating performance criterion. Comfort and performance associations were described using Pearson’s correlation coefficient (r) or the R square value from the regression estimate.SettingTwo professional football codes in Australia.Participants79 professional footballers were followed for one football season, a total of 1724 player weeks.Main Outcome MeasuresStudy hypothesis was poor lower limb comfort is negatively correlated with good match day rated performance. Aspects of validity and responsiveness to change tested the hypothesis that lower limb comfort, affects rated performance. A validated lower limb comfort index (LLCI) was used to test comfort. Rated performance was evaluated by subjective rating criterion of experienced team coaches.ResultsPoor lower limb comfort and good match day ratings were not well correlated (R2 = 0.25, P≤0.001) and usual-high comfort was correlated with usual-good performance (R2 = 0.69, P≤0.001).ConclusionsLower limb comfort may be a sensitive measure of rated performance in football. The LLCI is the first measurement tool to show association between comfort and rated performance. |
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