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- Title
Reliability and Validity of the End Range Hamstring Strength Test with Handheld Dynamometry.
- Authors
Kristiansenia, Jakob; Eddy, Christina; Magnusson, Stig Peter
- Abstract
Background and Purpose Hamstring strength testing is crucial in assessing this important muscle group during rehabilitation and injury prevention. The purpose of this study was to evaluate the reliability and validity of measuring strength in a maximally lengthened position using a handheld dynamometer (HHD) compared to isokinetic testing. Methods Twenty healthy and active participants were recruited, and isometric strength testing was performed both on the Biodex machine and isometric end-range hamstring testing with the HHD on two occasions. Results Significant strong correlations (r= 0.87, p < 0.0001) were found between strength testing on the Biodex machine and the HHD for both the right and left sides. Bland-Altman plots demonstrated agreement between the two measurements. Excellent intra-rater reliability (ICC= 0.91-0.93) and moderate to good inter-rater reliability (ICC = 0.71-0.83) for the HHD test was demonstrated. Conclusions The HHD provides a reliable and valid alternative to isokinetic testing for assessing hamstring strength in a maximally lengthened position. This assessment can be valuable in monitoring rehabilitation progress and detecting deficits before and after returning to play. The HHD is an accessible and cost-effective option for assessing hamstring strength at long lengths in a clinical setting. Level of evidence 3
- Subjects
DENMARK; T-test (Statistics); RESEARCH evaluation; HAMSTRING muscle; STATISTICAL sampling; RESEARCH methodology evaluation; HOSPITALS; DESCRIPTIVE statistics; MUSCLE strength; EXERCISE tests; COMPARATIVE studies; DATA analysis software; MUSCLE contraction; ISOKINETIC exercise; INTER-observer reliability; RELIABILITY (Personality trait)
- Publication
International Journal of Sports Physical Therapy, 2024, Vol 19, Issue 3, p268
- ISSN
2159-2896
- Publication type
Article
- DOI
10.26603/001c.94011