Reliability of the Cybex Reactor in the assessment of an agility task

Jay Hertel; Craig R. Denegar; Phil D. Johnson; Sheri A. Hale; W. E. Buckley

doi:10.1123/jsr.8.1.24

Reliability of the Cybex Reactor in the assessment of an agility task

Jay Hertel, Craig R. Denegar, Phil D. Johnson, Sheri A. Hale, W. E. Buckley

Kinesiology

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Two studies were performed to estimate the reliability of the Cybex Reactor in assessing agility tasks. In Study 1, participants (n = 13) underwent identical testing sessions twice in 1 week. In Study 2, participants (n = 13) underwent identical testing sessions twice in 1 week, once 3 weeks later, and once 6 weeks later. Testing sessions consisted of four identical agility tasks requiring participants to react to cues shown on a video monitor. In Study 1, intraclass correlation coefficients (ICC) were .47 for Day 1 and .75 for Day 2 for time to complete each task. Participants performed faster on Day 2 (p <.05). In Study 2, ICC ranged from .58 to .83. ICC between sessions ranged from .59 to .73. Participants performed significantly faster each successive session except between Weeks 3 and 6 (p < .05). The Reactor appears to be reliable in assessing agility tasks with test-retest intervals of up to 6 weeks.

Original language	English (US)
Pages (from-to)	24-31
Number of pages	8
Journal	Journal of Sport Rehabilitation
Volume	8
Issue number	1
DOIs	https://doi.org/10.1123/jsr.8.1.24
State	Published - Feb 1999

All Science Journal Classification (ASJC) codes

Biophysics
Orthopedics and Sports Medicine
Physical Therapy, Sports Therapy and Rehabilitation
Rehabilitation

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10.1123/jsr.8.1.24

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title = "Reliability of the Cybex Reactor in the assessment of an agility task",

abstract = "Two studies were performed to estimate the reliability of the Cybex Reactor in assessing agility tasks. In Study 1, participants (n = 13) underwent identical testing sessions twice in 1 week. In Study 2, participants (n = 13) underwent identical testing sessions twice in 1 week, once 3 weeks later, and once 6 weeks later. Testing sessions consisted of four identical agility tasks requiring participants to react to cues shown on a video monitor. In Study 1, intraclass correlation coefficients (ICC) were .47 for Day 1 and .75 for Day 2 for time to complete each task. Participants performed faster on Day 2 (p <.05). In Study 2, ICC ranged from .58 to .83. ICC between sessions ranged from .59 to .73. Participants performed significantly faster each successive session except between Weeks 3 and 6 (p < .05). The Reactor appears to be reliable in assessing agility tasks with test-retest intervals of up to 6 weeks.",

author = "Jay Hertel and Denegar, {Craig R.} and Johnson, {Phil D.} and Hale, {Sheri A.} and Buckley, {W. E.}",

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AU - Buckley, W. E.

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Reliability of the Cybex Reactor in the assessment of an agility task

Abstract

All Science Journal Classification (ASJC) codes

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