Journal
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
Volume 25, Issue 9, Pages 2424-2433Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1519/JSC.0b013e3182030edb
Keywords
Maximal strength; upper extremity; lower extremity; throwing performance; vertical jump; muscle volumes
Categories
Funding
- Ministere de l'enseignement superieur et de la Recherche Scientifique, Tunisia
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Hermassi, S, Chelly, MS, Tabka, Z, Shephard, RJ, and Chamari, K. Effects of 8-week in-season upper and lower limb heavy resistance training on the peak power, throwing velocity, and sprint performance of elite male handball players. J Strength Cond Res 25(9): 2424-2433, 2011-The aims of this study were to test the potential of in-season heavy upper and lower limb strength training to enhance peak power output (W-peak), vertical jump, and handball related field performance in elite male handball players who were apparently already well trained, and to assess any adverse effects on sprint velocity. Twenty-four competitors were divided randomly between a heavy resistance (HR) group (age 20 +/- 0.7 years) and a control group (C; age 20 +/- 0.1 years). Resistance training sessions were performed twice a week for 8 weeks. Performance was assessed before and after conditioning. Peak power (W-peak) was determined by cycle ergometer; vertical squat jump (SJ) and countermovement jump (CMJ); video analyses assessed velocities during the first step (V-1S), the first 5 m (V-5m), and between 25 and 30 m (V-peak) of a 30-m sprint. Upper limb bench press and pull-over exercises and lower limb back half squats were performed to 1-repetition maximum (1RM). Upper limb, leg, and thigh muscle volumes and mean thigh cross-sectional area (CSA) were assessed by anthropometry. W-peak (W) for both limbs (p < 0.001), vertical jump height (p < 0.01 for both SJ and CMJ), 1RM (p < 0.001 for both upper and lower limbs) and sprint velocities (p < 0.01 for V-1S and V-5m; p < 0.001 for V-peak) improved in the HR group. Upper body, leg, and thigh muscle volumes and thigh CSA also increased significantly after strength training. We conclude that in-season biweekly heavy back half-squat, pull-over, and bench-press exercises can be commended to elite male handball players as improving many measures of handball-related performance without adverse effects upon speed of movement.
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