Influence of technique on upper body force and power production during medicine ball throws

Sayers, Mark GL; Lorenzetti, Silvio (2020). Influence of technique on upper body force and power production during medicine ball throws Journal of Sports Sciences, 38(4), pp. 470-475. Taylor & Francis 10.1080/02640414.2019.1706871

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This project examined the interrelationships between power production and upper body kinematics during a series of medicine ball push-press (MBP-P) throws. Twenty-five regular weight trainers (body mass = 86 ± 10 kg) performed a series of ballistic vertical MBP-P throws at loads representing 5% and 10% of their assessed 5RM bench press. Throws were performed lying supine on a force platform (1 kHz) with upper body kinematics assessed using standard infra-red motion capture techniques (0.5 kHz). Gross measures of performance and power production such as peak vertical ball velocity (Velpeak), peak force (Fpeak) and power (Ppeak) were recorded during the propulsive phase of the movement. Comparative analyses indicated that despite significant reductions in Velpeak from the 5% to 10% loads (P < 0.001), Fpeak remained largely unchanged (P = 0.167). Analysis of inter-trial variability showed that the gross measures of performance and power were relatively stable (Coefficient of Variation [CV%] <13%), while most upper limb segmental kinematics varied considerably between trials (CV% up to 70%). This project highlights the complexity of the relationships between power production and upper body kinematics during light load ballistic MBP-P throwing. Additionally, it shows how trained athletes can achieve similar outcomes during ballistic movements using a variety of movement strategies.

Item Type:

Journal Article (Original Article)

Division/Institute:

Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport

Name:

Sayers, Mark GL and
Lorenzetti, Silvio0000-0002-8339-8960

ISSN:

0264-0414 (Print) 1466-447X (Online)

Publisher:

Taylor & Francis

Language:

English

Submitter:

Admin import user

Date Deposited:

16 Mar 2021 14:35

Last Modified:

22 Sep 2021 02:18

Publisher DOI:

10.1080/02640414.2019.1706871

Related URLs:

PubMed ID:

31856662

Uncontrolled Keywords:

Power testing Ballistic strength Dynamic strength

ARBOR DOI:

10.24451/arbor.14406

URI:

https://arbor.bfh.ch/id/eprint/14406

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