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- Title
Effects of Lower Extremity Anaerobic Fatigue on Neuromuscular Function and Jumping Performance.
- Authors
King, Tyler; Kaper, Grant; Paradis, Seth
- Abstract
The aim of this study was to determine Robert Robergs, PhD the effects of lower extremity anaerobic fatigue on neuromuscular Chantal Vella, PhD function and jumping performance. Performance was measured with Dale Wagner, PhD a 3-D accelerometer. Variables examined were eccentric/concentric Frank Wyatt, PhD Ben Zhou, PhD contraction ratios (E/C), power production, force production, contact time, and maximal height. Subjects included 9 male soccer players. The subjects completed three Countermovement Jump (CMJ) and Plyometric Jump (PJ) tests; one of each test was conducted during the pre-test session and immediately following fatigue protocols. The Official Research Journal of the American Society of first fatigue protocol was the Wingate test. The second fatigue Exercise Physiologists protocol was the Bosco test that consisted of maximal effort squat jumps for a minute. Statistical analysis was conducted using a paired ISSN 1097-9751 t-test. No significance was found at the P=0.05 level between pre-test and post-test values for E/C (Wingate P=0.65; Bosco P=0.70), power (P=0.71; P=0.10), force (P=0.79; P=0.35), contact times (P=0.20; p=0.71), or maximal height (Wingate p=0.18). The only significance found was the decrease between the pre-test (35.28 cm ± 4.00) and the Bosco post-test (32.46 cm ± 3.32) values of maximal height (P=0.048). The findings indicate that the Wingate and Bosco fatigue protocols did not stress the neuromuscular system. It is probable that the protocols may have failed to induce fatigue, as the results did not support current research. Though little correlation was found between lower extremity fatigue and jumping performance, it is reasonable that further research should be conducted to explore how different levels of fatigue may contribute to neuromuscular function and jumping performance.
- Subjects
LEG physiology; ANAEROBIC exercises; FATIGUE (Physiology); NEUROMUSCULAR system physiology; JUMPING; ACCELEROMETERS; EXERCISE physiology; PHYSIOLOGY
- Publication
Journal of Exercise Physiology Online, 2013, Vol 16, Issue 4, p19
- ISSN
1097-9751
- Publication type
Article