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Effects of Short-Term In-Season Weightlifting Training on the Muscle Strength, Peak Power, Sprint Performance, and Ball-Throwing Velocity of Male Handball Players

Hermassi, Souhail1; Schwesig, René2; Aloui, Gaith3; Shephard, Roy J.4; Chelly, Mohamed Souhaiel3

The Journal of Strength & Conditioning Research: March 05, 2019 - Volume Publish Ahead of Print - Issue - p
doi: 10.1519/JSC.0000000000003068
Original Research: PDF Only

Hermassi, S, Schwesig, R, Aloui, G, Shephard, RJ, and Chelly, MS. Effects of short-term in-season weightlifting training on the muscle strength, peak power, sprint performance, and ball-throwing velocity of male handball players. J Strength Cond Res XX(X): 000–000, 2019—This study analyzed the effects of in-season weightlifting training, conducted biweekly for 12 weeks. Twenty-two male handball players were divided into experimental (age: 20.3 ± 0.5 years, height: 1.85 ± 0.04 m, and body mass: 86.3 ± 9.4 kg) and control (age: 20.1 ± 0.5 years, height: 1.81 ± 0.05 m, and body mass: 83.9 ± 10.3 kg) groups, and performance was assessed before and after the intervention. Peak power was determined by a cycle ergometer force-velocity test, a vertical squat jump, and a countermovement jump. Measures of 1 repetition maximal strength included bench press, back half-squats, snatch, and clean and jerk. Handball-throwing velocity was assessed by standing, running, and jump throws. The change of direction T-half test and sprint times over 5, 15, and 30 m were recorded by paired photocells. The intraclass correlation coefficient of all parameters exceeded 0.75. Significant training effects were seen for all sprint (3/3) and throwing (3/3) measures, but only 7/14 strength parameters and 3/10 jump parameters. The largest increases of performance were for snatch (η2 = 0.627; d = 2.85) and 15-m sprinting2 = 0.852; d = 2.73). Countermovement jump force showed a negative response (d = −0.62). Three other parameters (V0 power for the upper and lower limbs, countermovement jump power) showed only small effect sizes (d = 0.45, d = 0.31, and d = 0.23, respectively). We conclude that 12 weeks of biweekly in-season weight training improved the peak power, maximal strength, sprinting, and throwing in handball players, but that their jump performance did not increase with this kind of intervention.

1Sport Science Program, College of Arts and Sciences, Qatar University, Doha, Qatar;

2Department of Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, Halle, Germany;

3Research Unit (UR17JS01), Sport Performance, Health and Society, Department of Biological Sciences Applied for Physical Activities and Sport, Higher Institute of Sport and Physical Education, Ksar-Saîd, University of “La Manouba,” Tunis, Tunisia; and

4Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada

Address correspondence to Dr. Souhail Hermassi,

Copyright © 2019 by the National Strength & Conditioning Association.