Gender and age related differences in leg stiffness and reactive strength in adolescent team sports players

Lehnert, Michal, De Ste Croix, Mark B ORCID: 0000-0001-9911-4355, Svoboda, Zdenek, Elfmark, Milan, Sikora, Ondřej and Stastny, Petr (2020) Gender and age related differences in leg stiffness and reactive strength in adolescent team sports players. Journal of Human Kinetics. (In Press)

[img] Text (Peer-reviewed version)
8975-de-Ste-Croix-(2020)-Gender-and-age-related-differences.pdf - Accepted Version
Restricted to Repository staff only (Publisher Embargo).
Available under License Creative Commons Attribution 4.0.

Download (470kB)

Abstract

The aim of the present study was to identify potential gender differences in leg stiffness and reactive strength during hopping tasks in 13 to16-year old team sports players. Reactive strength index (RSI) and leg stiffness were obtained in two consecutive seasons from 51 girls (U14: n = 31, U16: n = 20) and 65 boys (U14: n = 32, U16: n = 33). A significant main effect on absolute (U14: p = 0.022, η² = 0.084; U16: p < 0.001, η² = 0.224) and relative leg stiffness (U14 p<0.001; η² = 0.195; U16; p = 0.008, η² = 0.128) for gender was found in both groups with values higher in boys than in girls. For absolute and relative stiffness gender differences in the U14 group were significant in the 1st year only (p=0.027 and p=0.001), and for the U16s in the 2nd year only (p < 0.001 and p = 0.022). For RSI, a significant main effect for gender was observed in the U16 group only (p < 0.001 η² = 0.429) with values significantly higher in boys than in girls in both years of measurement (p = 0.001; p < 0.001). Results of this study support previous limited findings, mostly related to non-athletes, suggesting lower stretch-shortening cycle capability in adolescence female compared to male, however our data only partly supports the theory that quality of neuromuscular functions increases with age until post puberty.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Youth; Neuromuscular; Stretch-shortening cycle; Reactive strength index
Subjects: Q Science > QP Physiology > QP301.H75 Physiology. Sport
Divisions: Schools and Research Institutes > School of Sport and Exercise > Applied Sport & Exercise Sciences
Research Priority Areas: Sport, Exercise, Health & Wellbeing
Depositing User: Rhiannon Goodland
Date Deposited: 11 Nov 2020 15:55
Last Modified: 11 Nov 2020 16:00
URI: http://eprints.glos.ac.uk/id/eprint/8975

University Staff: Request a correction | Repository Editors: Update this record

University Of Gloucestershire

Bookmark and Share

Find Us On Social Media:

Social Media Icons Facebook Twitter Google+ YouTube Pinterest Linkedin

Other University Web Sites

University of Gloucestershire, The Park, Cheltenham, Gloucestershire, GL50 2RH. Telephone +44 (0)844 8010001.