Home > Journals > Medicina dello Sport > Past Issues > Medicina dello Sport 2018 December;71(4) > Medicina dello Sport 2018 December;71(4):521-32

CURRENT ISSUE
 

JOURNAL TOOLS

eTOC
To subscribe
Submit an article
Recommend to your librarian
 

ARTICLE TOOLS

Publication history
Reprints
Permissions
Cite this article as

 

PHYSIOLOGICAL AREA   

Medicina dello Sport 2018 December;71(4):521-32

DOI: 10.23736/S0025-7826.18.03226-X

Copyright © 2018 EDIZIONI MINERVA MEDICA

language: English, Italian

Accuracy of force measurement via motion analysis system in artistic gymnastics

Bessem MKAOUER 1 , Helmi CHAABENE 2, Samiha AMARA 1, 3, Sarra HAMMOUDI-NASSIB 1, Yassine NEGRA 3, Monèm JEMNI 4

1 Higher Institute of Sport and Physical Education of Ksar Saïd, Manouba University, Manouba, Tunisia; 2 Tunisian Research Laboratory “Sports Performance Optimization,” National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia; 3 Unit of Research, Higher Institute of Sports and Physical Education, Ksar Said, Tunisia; 4 College of Arts and Science, Qatar University, Doha, Qatar


PDF


BACKGROUND: The aim of this study was to validate the accuracy of ground-reaction force measurement using inverse body dynamic analysis via video motion analysis system versus portable force-plate direct measurement system (i.e., gold standard model).
METHODS: Six elite-level male gymnasts (age =23.70±1.94 years; height =1.66±0.06 m; body mass =58.67±8.24 kg) participated in this study. The concurrent kinematic and dynamic analysis of the ground-reaction forces during snap-down take-off to back somersault were performed in the acrobatic series (i.e., round-off flic-flac back somersault).
RESULTS: The finding of the present study showed very good relative and absolute reliability of the motion analysis system outcomes (intraclass correlation coefficient [ICC] =0.953, typical error of measurement [TEM] =85.31 N, and TEM(%) =1.17%). Further, the motion analysis device demonstrated good ability to detect small and meaningful performance change (TEM< smallest worthwhile change [SWC]). No statistically significant differences were observed when comparing the ground-reaction force outcome between repetitions and devices (P>0.05; d=0.048). Additionally, results showed a nearly perfect association between the two methods (r=0.965 and R2=93%). The mean (bias)±95% limits of agreement between the two measurement devices was 341.0±508.8 N.
CONCLUSIONS: In conclusion, inverse body dynamic analysis could be a good alternative to force-plate device for coaches to evaluate ground-reaction force in male artistic gymnastics.


KEY WORDS: Kinetics - Gymnastics - Exercise test

top of page