当前位置： SCI文献检索 > JOURNAL OF STRENGTH AND CONDITIONING RESEARCH期刊下所有文献 > Importance, Reliability, and Usefulness of Acceleration Measures in Team Sports.

Importance, Reliability, and Usefulness of Acceleration Measures in Team Sports.

Abstract：

:Delaney, JA, Cummins, CJ, Thornton, HR, and Duthie, GM. Importance, reliability and usefulness of acceleration measures in team sports. J Strength Cond Res 32(12): 3494-3502, 2018-The ability to accelerate, decelerate, and change direction efficiently is imperative to successful team sports performance. Traditional intensity-based thresholds for acceleration and deceleration may be inappropriate for time-series data and have been shown to exhibit poor reliability, suggesting other techniques may be preferable. This study assessed movement data from one professional rugby league team throughout 2 full seasons and 1 preseason period. Using both 5 and 10 Hz global positioning systems (GPS) units, a range of acceleration-based variables were evaluated for their interunit reliability, ability to discriminate between positions, and associations with perceived muscle soreness. The reliability of 5 Hz global positioning systems for measuring acceleration and deceleration ranged from good to poor (CV = 3.7-27.1%), with the exception of high-intensity deceleration efforts (CV = 11.1-11.8%), the 10 Hz units exhibited moderate-to-good interunit reliability (CV = 1.2-6.9%). Reliability of average metrics (average acceleration/deceleration, average acceleration, and average deceleration) ranged from good to moderate (CV = 1.2-6.5%). Substantial differences were detected between positions using time spent accelerating and decelerating for all magnitudes, but these differences were less clear when considering the count or distance above acceleration/deceleration thresholds. All average metrics detected substantial differences between positions. All measures were similarly related to perceived muscle soreness, with the exception of high-intensity acceleration and deceleration counts. This study has proposed that averaging the acceleration/deceleration demands over an activity may be a more appropriate method compared with threshold-based methods, because a greater reliability between units, while not sacrificing sensitivity to within-subject and between-subject changes.

journal_name

J Strength Cond Res

journal_title

Journal of strength and conditioning research

authors

Delaney JA,Cummins CJ,Thornton HR,Duthie GM

doi

10.1519/JSC.0000000000001849

subject

Has Abstract

pub_date

2018-12-01 00:00:00

pages

3485-3493

issue

eissn

1064-8011

issn

1533-4287

journal_volume

pub_type

杂志文章

在线工具

Importance, Reliability, and Usefulness of Acceleration Measures in Team Sports.