Jorge Arede1,2, Oliver Gonzalo-Skok3, Chris Bishop4, Wolfgang I Schöllhorn5, Nuno Leite6. 1. Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal - jorge_arede@hotmail.com. 2. School of Education, Polytechnic Institute of Viseu, Viseu, Portugal - jorge_arede@hotmail.com. 3. Faculty of Health Sciences, University of San Jorge, Zaragoza, Spain. 4. Middlesex University, London, UK. 5. Institute of Sports Science, Johannes Gutenberg University Mainz, Mainz, Germany. 6. Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.
Abstract
BACKGROUND: The aim of this study was to analyze the effects of an inter-repetition variable rotational flywheel training program (variable) over standard rotational flywheel training (Standard). METHODS:Twenty-four youth female team-sports players were randomly assigned to both training groups (variable, N.=12; standard, N.=12), which consisted of 1 set of 3 rotational flywheel exercises ×10-12 repetitions, biweekly for a period of 6-weeks. The participants included in variable group were instructed to perform the movement randomly in one of the three directions (0°, 45° right, and 45° left). Measurements included reactive strength, jumping, change of direction, and sprinting tests; patellar tendon condition was also assessed. RESULTS: Substantial improvements were found in vertical jump with left leg (16.9%), lateral jump with right leg (13.6%), and patellar condition in left leg (4.1%) for standard group, but also in reactive strength index in right leg landing (33.9%), vertical jump with right (10.1%) and left leg (12.0%) for variable group. A significant interaction effect (group × time) was observed on patellar condition in right leg (F=10.02, P<0.01, η<sup>2</sup>=0.37), favoring variable group. CONCLUSIONS:Rotational flywheel training programs were beneficial for youth-female team-sports athletes, although the movement variability may play a key role to develop different and specific physical adaptations.
RCT Entities:
BACKGROUND: The aim of this study was to analyze the effects of an inter-repetition variable rotational flywheel training program (variable) over standard rotational flywheel training (Standard). METHODS: Twenty-four youth female team-sports players were randomly assigned to both training groups (variable, N.=12; standard, N.=12), which consisted of 1 set of 3 rotational flywheel exercises ×10-12 repetitions, biweekly for a period of 6-weeks. The participants included in variable group were instructed to perform the movement randomly in one of the three directions (0°, 45° right, and 45° left). Measurements included reactive strength, jumping, change of direction, and sprinting tests; patellar tendon condition was also assessed. RESULTS: Substantial improvements were found in vertical jump with left leg (16.9%), lateral jump with right leg (13.6%), and patellar condition in left leg (4.1%) for standard group, but also in reactive strength index in right leg landing (33.9%), vertical jump with right (10.1%) and left leg (12.0%) for variable group. A significant interaction effect (group × time) was observed on patellar condition in right leg (F=10.02, P<0.01, η<sup>2</sup>=0.37), favoring variable group. CONCLUSIONS: Rotational flywheel training programs were beneficial for youth-female team-sports athletes, although the movement variability may play a key role to develop different and specific physical adaptations.
Authors: Jorge Arede; Sogand Poureghbali; Tomás Freitas; John Fernandes; Wolfgang I Schöllhorn; Nuno Leite Journal: Int J Environ Res Public Health Date: 2021-11-30 Impact factor: 3.390
Authors: Jorge Arede; John F T Fernandes; Wolfgang I Schöllhorn; Nuno Leite Journal: Int J Environ Res Public Health Date: 2022-09-27 Impact factor: 4.614