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Test-Retest Reliability of the Biodex Isokinetic Dynamometer
Abstract
The purpose of this study was to determine the test-retest reliability of the Biodex (Biodex, Corp., Shirley, NY) isokinetic concentric mode for a healthy active population for knee extension/flexion utilizing the parameters peak torque and work. Nineteen healthy active male and female subjects ages 20-35 with no history of knee injury were tested bilaterally for concentric knee extension and flexion at 60, 180, 240, and 300 degrees /sec., utilizing standard Biodex protocol. Seven days following the pre-test, a post-test was administered using identical protocol. Data collection of pre- and posttesting was done via a Compaq Desk Pro personal computer and Biodex software programming. The parameters of peak torque and single repetition work were analyzed for knee extension/flexion. Statistical analysis of data showed the intraclass correlation coefficient (ICC) of knee extension peak torque at 60 degrees /sec to be r = 0.95; at 180 degrees /sec, r = 0.96; at 240 degrees /sec, r = 0.95; and at 300 degrees /sec, r = 0.97. Knee extension work ICC values were at 60 degrees /sec, r = 0.96; at 180 degrees /sec, r = 0.97; at 240 degrees /sec, r = 0.96 and r = 0.95 at 300 degrees /sec. All ICCs are significant at the 0.05 level. Therefore, the isokinetic concentric mode of the Biodex dynamometer was reliable for test-retest measures of peak torque, and single repetition work. J Orthop Sports Phys Ther 1990;11(7):298-300.
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Metadata
- Authors
- Feiring, D. C., Ellenbecker, T. S., & Derscheid, G. L.
- Venue
- Journal of Orthopaedic & Sports Physical Therapy
- Published
- 1990-01
- Volume
- 11
- Issue
- 7
- Pages
- 298-300
- ISSN
- 0190-6011 (ISSN-L)
- 1938-1344
- OpenAlex
- W2092715933
- Cited by
- 359
- References
- 0
- FWCI
- 12.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Feiring, D. C., Ellenbecker, T. S., & Derscheid, G. L. (1990). Test-Retest Reliability of the Biodex Isokinetic Dynamometer. Journal of Orthopaedic & Sports Physical Therapy. https://doi.org/10.2519/jospt.1990.11.7.298
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
