Decrements in knee extensor and flexor strength are associated with performance fatigue during simulated basketball game-play in adolescent,male players |
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| Authors: | Aaron T Scanlan Jordan L Fox Nattai R Borges Anne Delextrat Tania Spiteri Vincent J Dalbo |
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| Institution: | 1. Human Exercise and Training Laboratory, Central Queensland University, Rockhampton, USA;2. School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, USA;3. School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, USA;4. School of Environmental and Life Sciences, Faculty of Science and Information Technology, University of Newcastle, Ourimbah, USA;5. Faculty of Sport and Health Sciences, Oxford Brookes University, Oxford, England;6. School of Health Sciences, University of Notre Dame, Perth, USA |
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| Abstract: | This study quantified lower-limb strength decrements and assessed the relationships between strength decrements and performance fatigue during simulated basketball. Ten adolescent, male basketball players completed a circuit-based, basketball simulation. Sprint and jump performance were assessed during each circuit, with knee flexion and extension peak concentric torques measured at baseline, half-time, and full-time. Decrement scores were calculated for all measures. Mean knee flexor strength decrement was significantly (P < 0.05) related to sprint fatigue in the first half (R = 0.65), with dominant knee flexor strength (R = 0.67) and dominant flexor:extensor strength ratio (R = 0.77) decrement significantly (P < 0.05) associated with sprint decrement across the entire game. Mean knee extensor strength (R = 0.71), dominant knee flexor strength (R = 0.80), non-dominant knee flexor strength (R = 0.75), mean knee flexor strength (R = 0.81), non-dominant flexor:extensor strength ratio (R = 0.71), and mean flexor:extensor strength ratio (R = 0.70) decrement measures significantly (P < 0.05) influenced jump fatigue during the entire game. Lower-limb strength decrements may exert an important influence on performance fatigue during basketball activity in adolescent, male players. Consequently, training plans should aim to mitigate lower-limb fatigue to optimise sprint and jump performance during game-play. |
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| Keywords: | Hamstrings quadriceps isokinetics jump sprint |
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