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Diurnal Variations in Upper and Lower Body Power in Adolescent Volleyball Players: Exploring Time-of-Day Effects on Performance.
Sports (Basel)
November 2024
Department of Martial Arts and Power Sports, National University of Physical Education and Sport, 03150 Kyiv, Ukraine.
Background/objectives: This study aims to investigate the daily variations in upper and lower body power performance in adolescent volleyball players.
Methods: The sample consisted of 50 young male volleyball players (14.12 ± 0.
Background: Little is known about the influence of kinetic chain strength and power on shoulder problems in handball players or the impact of participation-related shoulder load (PSL) during a season. Suboptimal activity of the kinetic chain during throwing might make the shoulder more vulnerable.
Purpose: The purpose of this study was to assess 1) the association between pre-season measurements and shoulder problems among handball players and 2) whether pre-season strength and power influence the association between PSL and severity of shoulder problems.
Investigation of a Theoretical Model for the Rotational Shot Put Technique.
J Appl Biomech
November 2024
National Institute of Fitness and Sports in Kanoya, Kanoya, Japan.
Article Synopsis
- The study aimed to analyze the biomechanics of the rotational shot put technique, focusing on the relationships between kinematics (motion) and kinetics (forces) that contribute to higher release velocity.
- Using 3D motion capture of 22 male shot putters during competitions, researchers identified key variables like impulse, angular momentum, and linear momentum that significantly affect release velocity.
- The findings highlight important kinematic factors, such as shoulder rotation and trunk tilt, and suggest targeted coaching strategies to improve athletes’ performance in shot put.
Developmental patterns of athletic performance and physical fitness in youth baseball players: A longitudinal analysis.
J Sports Sci
October 2024
Faculty of Sport Sciences, Waseda University, Saitama, Japan.
This study aimed to evaluate developmental patterns in athletic performance during youth and determine their association with changes in physical fitness. The testing included three athletic performance (i.e.
View Article and Find Full Text PDFA crossover study on attentional focus and gross motor performance in individuals with Down syndrome.
PLoS One
August 2024
Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.
Little is known about the effect of using an attentional focus instruction on motor performance in people with intellectual disabilities. Therefore, this study explored the effects of different attentional focus instructions on gross motor skill performances in individuals with Down syndrome. Seven community-dwelling participants (age 25.
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