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@article{Alexander:2022:10.1186/s12891-022-05540-1,
author = {Alexander, C and Strutton, P and Kassam, J and Long, M and Kiru, L},
doi = {10.1186/s12891-022-05540-1},
journal = {BMC Musculoskeletal Disorders},
title = {An investigation of the control of quadriceps in people who are hypermobile; a case control design. Do the results impact our choice of exercise for people with symptomatic hypermobility?},
url = {http://dx.doi.org/10.1186/s12891-022-05540-1},
volume = {23},
year = {2022}
}

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TY  - JOUR
AB  - Background: People with symptomatic hypermobility have altered proprioception however, the origin of this is unclear and needs further investigation to target rehabilitation appropriately. The objective of this investigation was to explore the corticospinal and reflex control of quadriceps and see if it differed between three groups of people: those who have symptomatic hypermobility, asymptomatic hypermobility and normal flexibility. Methods: Using Transcranial Magnetic Stimulation (TMS) and electrical stimulation of peripheral nerves, motor evoked potentials (MEPs) and Hoffman (H) reflexes of quadriceps were evoked in the three groups of people. The threshold and latency of MEPs and the slope of the input-output curves and the amplitude of MEPs and H reflexes were compared across the groups.Results: The slope of the input-output curve created from MEPs as a result of TMS was steeper in people with symptomatic hypermobility when compared to asymptomatic and normally flexible people (p = 0.04). There were no other differences between the groups.Conclusion: Corticospinal excitability and the excitability at the motoneurone pool are not likely candidates for the origin of proprioceptive loss in people with symptomatic hypermobility. This is discussed in the light of other work to suggest the receptor sitting in hypermobile connective tissue is a likely candidate. This suggests that treatment aimed at improving receptor responsiveness through increasing muscle tone, may be an effective rehabilitation strategy.
AU  - Alexander,C
AU  - Strutton,P
AU  - Kassam,J
AU  - Long,M
AU  - Kiru,L
DO  - 10.1186/s12891-022-05540-1
PY  - 2022///
SN  - 1471-2474
TI  - An investigation of the control of quadriceps in people who are hypermobile; a case control design. Do the results impact our choice of exercise for people with symptomatic hypermobility?
T2  - BMC Musculoskeletal Disorders
UR  - http://dx.doi.org/10.1186/s12891-022-05540-1
UR  - https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-022-05540-1
UR  - http://hdl.handle.net/10044/1/97491
VL  - 23
ER  -

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