Citation

Clarke AC, Anson JM, Pyne DB. J. Strength Cond. Res. 2016; 31(4): 1116-1120.

Affiliation

1Physiology Department, Australian Institute of Sport, Canberra, Australia 2Research Institute of Sport and Exercise, University of Canberra, Canberra, Australia.

Copyright

(Copyright © 2016, National Strength and Conditioning Association)

DOI

10.1519/JSC.0000000000001576

PMID

27467515

Abstract

Developments in microsensor technology allow for automated detection of collisions in various codes of football, removing the need for time-consuming post processing of video footage. However, little research is available on the ability of microsensor technology to be used across various sports or genders. Game video footage was matched with microsensor-detected collisions (GPSports) in one men's (n=12 players) and one women's (n=12) rugby sevens match. True positive, false positive and false negative events between video and microsensor-detected collisions were used to calculate recall (ability to detect a collision) and precision (accurately identify a collision). The precision was similar between the men's and women's rugby sevens game (∼0.72; scale 0.00-1.00), however, the recall in the women's game (0.45) was less than for the men (0.69). This resulted in 45% of collisions for men, and 62% of collisions for women, being incorrectly labelled. Currently, the automated collision detection system in GPSports microtechnology units has only modest utility in rugby sevens and it appears that a rugby sevens-specific algorithm is needed. Differences in measures between the men's and women's game may be a result of physical size, strength, physicality and/or technical and tactical factors.

Language: en