当前位置： SCI文献检索 > JOURNAL OF STRENGTH AND CONDITIONING RESEARCH期刊下所有文献 > Quantifying the physical demands of collision sports: does microsensor technology measure what it claims to measure?

Quantifying the physical demands of collision sports: does microsensor technology measure what it claims to measure?

Abstract：

:The physical demands of rugby league, rugby union, and American football are significantly increased through the large number of collisions players are required to perform during match play. Because of the labor-intensive nature of coding collisions from video recordings, manufacturers of wearable microsensor (e.g., global positioning system [GPS]) units have refined the technology to automatically detect collisions, with several sport scientists attempting to use these microsensors to quantify the physical demands of collision sports. However, a question remains over the validity of these microtechnology units to quantify the contact demands of collision sports. Indeed, recent evidence has shown significant differences in the number of "impacts" recorded by microtechnology units (GPSports) and the actual number of collisions coded from video. However, a separate study investigated the validity of a different microtechnology unit (minimaxX; Catapult Sports) that included GPS and triaxial accelerometers, and also a gyroscope and magnetometer, to quantify collisions. Collisions detected by the minimaxX unit were compared with video-based coding of the actual events. No significant differences were detected in the number of mild, moderate, and heavy collisions detected via the minimaxX units and those coded from video recordings of the actual event. Furthermore, a strong correlation (r = 0.96, p < 0.01) was observed between collisions recorded via the minimaxX units and those coded from video recordings of the event. These findings demonstrate that only one commercially available and wearable microtechnology unit (minimaxX) can be considered capable of offering a valid method of quantifying the contact loads that typically occur in collision sports. Until such validation research is completed, sport scientists should be circumspect of the ability of other units to perform similar functions.

journal_name

J Strength Cond Res

journal_title

Journal of strength and conditioning research

authors

Gabbett TJ

doi

10.1519/JSC.0b013e318277fd21

subject

Has Abstract

pub_date

2013-08-01 00:00:00

pages

2319-22

issue

eissn

1064-8011

issn

1533-4287

journal_volume

pub_type

杂志文章

在线工具

Quantifying the physical demands of collision sports: does microsensor technology measure what it claims to measure?