Physiological Responses to Linear and Nonlinear Soccer-specific Match Simulations and Their Effects on Lower-Limb Muscle Fatigue
| Autor: | Paul J. Read, Nasir Uddin, Stephen D. Patterson, Louis P. Howe, Mark Waldron, Owen Jeffries |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Deceleration Acceleration Hamstring Muscles Physical Therapy Sports Therapy and Rehabilitation Athletic Performance 030204 cardiovascular system & hematology Running Young Adult 03 medical and health sciences 0302 clinical medicine Lower limb muscle Physical medicine and rehabilitation Z724 Heart Rate Z807 Soccer Heart rate medicine Humans Orthopedics and Sports Medicine Shuttle test Z723 Mathematics 030229 sport sciences General Medicine Adaptation Physiological Physiological responses Nonlinear system Lower Extremity Muscle Fatigue Exercise Test Geographic Information Systems Jump Muscle group Hamstring |
| Zdroj: | Journal of Strength and Conditioning Research. 34:3232-3240 |
| ISSN: | 1064-8011 1533-4287 |
| DOI: | 10.1519/jsc.0000000000002797 |
| Popis: | Uddin, N, Jeffries, O, Read, P, Howe, L, Patterson, S, and Waldron, M. Physiological responses to linear and nonlinear soccer-specific match simulations and their effects on lower-limb muscle fatigue. J Strength Cond Res 34(11): 3232-3240, 2020-The aims of this study were to: (a) investigate the effects of linear and nonlinear soccer simulations on lower-limb muscle function and physiological responses and (b) evaluate the relationship between match-running demands and changes in lower-limb muscle function. In a repeated-measures cross-over design, 8 participants completed either a linear or nonlinear adapted Loughborough Intermittent Shuttle Test (LIST) on 2 occasions. The movement of players was tracked with a global positioning system, while lower-limb muscle function tests and physiological measurements were performed before and every 15 minutes during the simulation. There were no differences in distance covered, yet high-speed running (p = 0.007), accelerations (p = 0.008), and decelerations (p = 0.015) were higher in the linear LIST. Mean heart rate (p = 0.001) and ratings of perceived exertion (p = 0.013) were higher in the nonlinear LIST. Peak landing forces (p = 0.017) and jump height (p = 0.001) were reduced between baseline and 90 minutes but were not different between conditions. Changes in peak landing forces from baseline to half-time (r = -0.57, n = 16, p = 0.022) and full-time (r = -0.58, n = 16, p = 0.019) were related to high-speed running. Hamstring force was unaffected by time (p = 0.448) but was reduced in the linear LIST (p = 0.044). Protocols posing different external and internal demands elicited similar levels of fatigue across simulations. Hamstring function was not an effective indicator of fatigue, but our results highlight the greater demands placed on this muscle group when higher-speed running is performed. |
| Databáze: | OpenAIRE |
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