Are Altered Kinematics in Runners With Patellofemoral Pain Sex Specific?

Autor:	Luz BC; Department of Physiotherapy, São Carlos Federal University, São Carlos, Brazil., Dos Santos AF; University Centre UNA Pouso Alegre, Pouso Alegre, MG, Brazil., Serrão FV; Department of Physiotherapy, São Carlos Federal University, São Carlos, Brazil.
Jazyk:	angličtina
Zdroj:	Sports health [Sports Health] 2022 Nov-Dec; Vol. 14 (6), pp. 822-828. Date of Electronic Publication: 2022 May 20.
DOI:	10.1177/19417381221088582
Abstrakt:	Background: Altered kinematics have been frequently observed in runners with patellofemoral pain (PFP), and few studies have aimed to understand the influence of sex on kinematics of this population. The aim of this study was to investigate whether altered hip and knee kinematics in runners with PFP are sex specific. Hypothesis: Kinematics will be different between female and male runners with and without PFP. Study Design: Case-control study. Level of Evidence: Level 2. Methods: Eighty-four runners were divided into 4 groups: 42 runners with PFP (20 women, 22 men) and 42 asymptomatic runners (21 women, 21 men). Three-dimensional gait analyses of the hip in the frontal and transverse plane and the knee in the frontal plane were analyzed at self-selected running speed on a treadmill. One-way analysis of covariance was used to test for differences in kinematic variables between groups. Results: Women with PFP ran with a significantly greater peak hip adduction compared with men with PFP (mean difference [MD] = 4.45°; P = 0.00; effect size [ES] = 0.58) and male control subjects (MD = 4.2°; P = 0.01; ES = 0.54) and greater hip adduction range of motion (ROM) than men with PFP (MD = 3.44°; P = 0.01; ES = 0.49). No significant differences were identified between women with and without PFP. Female control subjects ran with greater peak hip adduction than men with PFP (MD = 5.46°; P < 0.01; ES = 0.58) and male control subjects (MD = 5.21°; P < 0.01; ES = 0.55); greater hip adduction ROM than men with PFP (MD = 4.02°; P = 0.00; ES = 0.52) and male control subjects (MD = 2.91°; P = 0.04; ES = 0.36); and greater peak knee abduction than men with PFP (MD = 3.35°; P = 0.02; ES = 0.44) and male control subjects (MD = 3.69°; P = 0.01; ES = 0.4). Conclusion: Women have greater hip adduction than men regardless of the presence of PFP. There were no kinematics difference between women with and without PFP. Comparisons of hip internal rotation between all groups were nonsignificant. Clinical Relevance: Altered hip and knee kinematics does not appear to be sex specific in runners with PFP.
Databáze:	MEDLINE
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