Reproducibility and Concurrent Validity of Hip Joint Angle Test for Estimating Hamstring Flexibility in Recreationally Active Young Men

Ayala, Francisco, Sainz de Baranda, Pilar, De Ste Croix, Mark B ORCID: 0000-0001-9911-4355 and Santonja, Fernando (2012) Reproducibility and Concurrent Validity of Hip Joint Angle Test for Estimating Hamstring Flexibility in Recreationally Active Young Men. Journal of Strength and Conditioning Research, 26 (9). pp. 2372-2382. ISSN 1064-8011

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Abstract

Ayala, F, Sainz de Baranda, P, De Ste Croix, M, and Santonja, F. Reproducibility and concurrent validity of hip joint angle test for estimating hamstring flexibility in recreationally active young men. J Strength Cond Res 26(9): 2372–2382, 2012—The purposes of this study were twofold: (a) to examine the test-retest reproducibility and concurrent validity of the horizontal hip joint angle test (H-HJA) and vertical hip joint angle test (V-HJA) for estimating hamstring flexibility measured with an inclinometer during the passive straight-leg raise test (PSLR) and (b) to determine whether the H-HJA cutoff scores may be used for V-HJA for the detection of short hamstring flexibility in active recreationally young adults. Fifty young men underwent the H-HJA, V-HJA, and PSLR on the right and left legs 3 times in a randomized order with a 4-week interval between trials under a controlled laboratory environment. Reproducibility was examined using coefficient of variation (CV) and intraclass correlation coefficient (ICC3,1) and their respective confidence limits. Regression and kappa correlation analyses were performed to examine the association of H-HJA and V-HJA with the PSLR test, and the 95% limits of agreement between H-HJA and V-HJA were calculated to check if there were differences in the raising scores. The results demonstrated acceptable reproducibility measures for the H-HJA (4.12% CV; 0.93 ICC), V-HJA (4.99% CV; 0.92 ICC), and PSLR (4.83% CV; 0.88 ICC). The H-HJA (R 2 = 0.62) and V-HJA (R 2 = 0.63) results were significantly associated with those of the PSLR. The 95% limits of agreement between the H-HJA and V-HJA reported systematic bias (+7.12 cm) and a wide 95% random error ( ±13.72 cm). This study concluded that the test-retest reproducibility of the H-HJA, V-HJA, and PSLR is acceptable and that the validity of H-HJA and V-HJA is moderate. Furthermore, the H-HJA cutoff scores should not be used for V-HJA for the detection of short hamstring muscles in young adults.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Measures; Horizontal Hip Joint Angle; Vertical Hip Joint Angle; Passive Straight-Leg Raise Test; Statistical Analyses
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Schools and Research Institutes > School of Sport and Exercise > Applied Sport & Exercise Sciences
Research Priority Areas: Sport, Exercise, Health & Wellbeing
Depositing User: Susan Turner
Date Deposited: 21 Mar 2019 18:13
Last Modified: 21 Mar 2019 18:13
URI: http://eprints.glos.ac.uk/id/eprint/6662

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