Does hip muscle strength and functional performance differ between football players with and without hip dysplasia?

Michael J M O'Brien*, Joshua Heerey, Adam Semciw, Inger Mechlenburg, Julie Sandell Jacobsen, Matthew G. King, Mark J. Scholes, Peter R. Lawrenson, Kay Crossley, Rintje Agricola, Richard B. Souza, Joanne Kemp*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

ObjectiveTo compare hip muscle strength and functional performance in football players with and without hip dysplasia and investigate if the relationships were modified by sex.DesignCross-sectional study.MethodsThis study compared football players with hip dysplasia (HD group) and without hip dysplasia (control group). Hip muscle strength (Nm/kg) and functional task performance were assessed in both groups. Linear regression with generalized estimating equations were used to assess differences between groups. Sex was assessed as a potential effect modifier.Results101 football players were included (HD group, n = 50, control group, n = 87). There was no difference in hip muscle strength or functional performance between the HD group and the control group. Results ranged from hip extension strength (Estimate −0.13.95%CI: 0.29 to 0.02, P = 0.087) to hip external rotation strength (Estimate 0.00.95%CI: 0.05 to 0.05, P = 0.918). No relationships were modified by sex or age.ConclusionsSimilar levels of hip muscle strength and functional performance were found in active football players with and without hip dysplasia. These findings differ from other studies. This may be due to our cohort having less advanced hip dysplasia than the surgical populations that have been previously investigated, or due to a beneficial effect of football participation on muscle strength and functional performance in people with hip dysplasia.
Original languageDanish
JournalPhysical Therapy in Sport
Volume64
Pages (from-to)1-7
Number of pages7
ISSN1466-853X
DOIs
Publication statusPublished - 14 Aug 2023

Cite this