Abstract
Objectives
To investigate whether the rate of change of muscle strength in people with joint
hypermobility syndrome (JHS) who have anterior knee pain (AKP) differs when compared
to 2 control groups who have AKP and to evaluate the relationship between strength
and pain as well as the effect of strength upon activity and knee function.
Design
A cohort study, with 3 groups: JHS with AKP, generalized joint hypermobility with
AKP (GJH), and normal flexibility with AKP (control group [CG]). Follow-up appointments
were performed every 2 weeks for 16 weeks.
Setting
The physiotherapy outpatient department within a London (United Kingdom) hospital.
Participants
A total of 102 people, aged between 18 and 55 years, were recruited between July 2014
and March 2016; 47 JHS, 29 GJH, and 26 CG (N=102). After 16 weeks, 31, 20, and 21
participants completed the study, respectively. Participants were recruited from support
groups, a London hospital group and university, local sports centers, and clubs.
Interventions
Individualized leg exercises for 16 weeks.
Main Outcome Measure
Muscle torque generated from the lower limb, every 2 weeks for 16 weeks.
Results
There was no difference in the rate of change of concentric muscle strength between
the JHS group and the CG or GJH group (P>.88 and P>.97). There was no difference in the rate of change of eccentric muscle strength
between the JHS group and the CG or GJH group (P>.60 and P>.94). However, people with JHS were significantly weaker than the other 2 groups,
taking 3 to 4 months to reach the baseline strength of the GJH group.
Conclusion
People with JHS can strengthen at the same rate as other people in pain.
Keywords
List of abbreviations:
AAS (adjusted activity score), AKP (anterior knee pain), ANOVA (analysis of variance), CG (control group), GJH (generalized joint hypermobility), HAP (human activity profile), EDS – H (Ehlers-Danlos Syndrome – hypermobility type), IQR (interquartile range), JHS (joint hypermobility syndrome), MDC (minimal detectable change), VAS (visual analog scale)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: December 29, 2018
Footnotes
Disclosures: May To received support from the Imperial College Healthcare Charity Pre Doctoral Fellowship Award. Caroline Alexander received support from the National Institute of Health Research Senior Clinical Lectureship.
Identification
Copyright
© 2018 by the American Congress of Rehabilitation Medicine
