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© 2016 National Strength and Conditioning Association.Bridgeman, LA, McGuigan, MR, Gill, ND, and Dulson, DK. Test-retest reliability of a novel isokinetic squat device with strength-trained athletes. J Strength Cond Res 30(11): 3261-3265, 2016 - The aim of this study was to investigate the test-retest reliability of a novel multijoint isokinetic squat device. The subjects in this study were 10 strength-trained athletes. Each subject completed 3 maximal testing sessions to assess peak concentric and eccentric force (N) over a 3-week period using the Exerbotics squat device. Mean differences between eccentric and concentric force across the trials were calculated. Intraclass correlation coefficients (ICCs) and coefficients of variation (CVs) for the variables of interest were calculated using an excel reliability spreadsheet. Between trials 1 and 2 an 11.0 and 2.3% increase in mean concentric and eccentric forces, respectively, was reported. Between trials 2 and 3 a 1.35% increase in the mean concentric force production and a 1.4% increase in eccentric force production was reported. The mean concentric peak force CV and ICC across the 3 trials was 10% (7.6-15.4) and 0.95 (0.87-0.98) respectively. However, the mean eccentric peak force CV and ICC across the trials was 7.2% (5.5-11.1) and 0.90 (0.76-0.97), respectively. Based on these findings it is suggested that the Exerbotics squat device shows good test-retest reliability. Therefore practitioners and investigators may consider its use to monitor changes in concentric and eccentric peak force.
Author(s): Bridgeman LA, McGuigan MR, Gill ND, Dulson DK
Publication type: Article
Publication status: Published
Journal: Journal of Strength and Conditioning Research
Year: 2016
Volume: 30
Issue: 11
Pages: 3261-3265
Print publication date: 01/11/2016
Acceptance date: 02/04/2016
ISSN (print): 1064-8011
ISSN (electronic): 1533-4295
Publisher: NSCA National Strength and Conditioning Association
URL: https://doi.org/10.1519/JSC.0000000000001410
DOI: 10.1519/JSC.0000000000001410
PubMed id: 26950357
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