Souhail Hermassi1, René Schwesig2, Rainer Wollny3, Georg Fieseler4, Roland van den Tillaar5, Jaime Fernandez-Fernandez6, Roy J Shephard7, Mohamed-Souhaiel Chelly8. 1. Research Unit 17JS01 for Sport Performance, Health and Society, Ksar-Saîd Higher Institute of Sport and Physical Education, Manouba University, Tunis, Tunisia - hermassi_fr@yahoo.fr. 2. Department of Orthopedic and Trauma Surgery, Martin-Luther-University Halle-Wittenberg, Halle, Germany. 3. Institute of Sports Sciences, Martin Luther University Halle-Wittenberg, Halle, Germany. 4. Division for Shoulder Surgery and Sports Medicine, Helios Clinic, Warburg, Germany. 5. Department of Sports Sciences, Nord-University, Levanger, Norway. 6. Center for Sport Research, Miguel Hernández University, Elche, Spain. 7. Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada. 8. Research Unit 17JS01 for Sport Performance, Health and Society, Ksar-Saîd Higher Institute of Sport and Physical Education, Manouba University, Tunis, Tunisia.
Abstract
BACKGROUND: This study assessed inter-relationships between shuttle and straight repeated-sprint ability tests and the relationship of each measure to anthropometric and explosive lower limb performance data in elite handball players. METHODS: Twenty-two elite male handball players (18.9±0.2 years; body mass: 83.3±1.1 kg, height: 1.79±2.30 m, body fat: 12.8±0.2%) completed tests that included a lower limb force-velocity test of peak power (Wpeak), jumping ability (squat and counter-movement jumps; SJ, CMJ), 1 repetition maximum (1-RM) half back squat, average sprint velocity over 5 m (V-5 m), peak velocity between 25-30 m (Vmax), and Yo-Yo Intermittent Recovery Test level 1 (Yo-Yo IR1), and anthropometric determinations of cross-sectional areas and muscle volumes for leg and thigh muscles. Data were compared with performance on two repeated sprint tests; the straight test (6 × 30 m [RSA30]) and the intermittent test (6×[2×15 m] shuttle sprints [RSA15]). RESULTS: V-5 m, 1-RM, and thigh and leg muscle cross-sectional areas and volumes showed relevant relationships to the shuttle RSA test (r2≥0.5). The Yo-Yo IR1 explained the largest percentage of variance in RSA15 total time (60%), and V-5 m also explained 56% of the variance in RSA15 total time. RSA15% fatigue was only related to 1-RM (explained variance: 58%), and the RSA30 test showed no useful correlations with any of the investigated predictors. Multiple-regression analyses using all physical tests explained 91% of the variance in RSA15 total time (P<0.001). CONCLUSIONS: The volume of the leg muscles seems important to power production and repeated sprints over distances of 15 m or less. RSA15 is related to muscular power, maximal strength, speed and endurance performance; however, the straight repeated sprint ability test is not, and thus does not seem relevant for the testing of handball players.
BACKGROUND: This study assessed inter-relationships between shuttle and straight repeated-sprint ability tests and the relationship of each measure to anthropometric and explosive lower limb performance data in elite handball players. METHODS: Twenty-two elite male handball players (18.9±0.2 years; body mass: 83.3±1.1 kg, height: 1.79±2.30 m, body fat: 12.8±0.2%) completed tests that included a lower limb force-velocity test of peak power (Wpeak), jumping ability (squat and counter-movement jumps; SJ, CMJ), 1 repetition maximum (1-RM) half back squat, average sprint velocity over 5 m (V-5 m), peak velocity between 25-30 m (Vmax), and Yo-Yo Intermittent Recovery Test level 1 (Yo-Yo IR1), and anthropometric determinations of cross-sectional areas and muscle volumes for leg and thigh muscles. Data were compared with performance on two repeated sprint tests; the straight test (6 × 30 m [RSA30]) and the intermittent test (6×[2×15 m] shuttle sprints [RSA15]). RESULTS: V-5 m, 1-RM, and thigh and leg muscle cross-sectional areas and volumes showed relevant relationships to the shuttle RSA test (r2≥0.5). The Yo-Yo IR1 explained the largest percentage of variance in RSA15 total time (60%), and V-5 m also explained 56% of the variance in RSA15 total time. RSA15% fatigue was only related to 1-RM (explained variance: 58%), and the RSA30 test showed no useful correlations with any of the investigated predictors. Multiple-regression analyses using all physical tests explained 91% of the variance in RSA15 total time (P<0.001). CONCLUSIONS: The volume of the leg muscles seems important to power production and repeated sprints over distances of 15 m or less. RSA15 is related to muscular power, maximal strength, speed and endurance performance; however, the straight repeated sprint ability test is not, and thus does not seem relevant for the testing of handball players.
Authors: Amin Daneshfar; Daniel E Gahreman; Majid S Koozehchian; Sadegh Amani Shalamzari; Mozhgan Hassanzadeh Sablouei; Thomas Rosemann; Beat Knechtle; Pantelis T Nikolaidis Journal: Front Physiol Date: 2018-04-04 Impact factor: 4.566
Authors: Jaime Fernandez-Fernandez; Isidoro Martinez-Martin; Vicente Garcia-Tormo; Juan Garcia-Lopez; Mario Centeno-Esteban; Lucas A Pereira; Irineu Loturco Journal: PLoS One Date: 2020-11-12 Impact factor: 3.240