The effects of joint hypermobility syndrome on the kinematics and kinetics of the vertical jump test.

Alsiri, Najla, Cramp, Mary, Barnett, Sue and Palmer, Shea 2020. The effects of joint hypermobility syndrome on the kinematics and kinetics of the vertical jump test. Journal of Electro - myography and Kinesiology 55 , pp. 1-9. 10.1016/j.jelekin.2020.102483

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Abstract

Purpose Biomechanical impairments are not apparent during walking in people with Joint Hypermobility Syndrome (JHS). This research explored biomechanical alterations during a higher intensity task, vertical jumping. Materials and methods This cross-sectional study compared a JHS group (n = 29) to a healthy control group (n = 30). Joint kinematics and kinetics were recorded using a Qualisys motion capture system synchronized with a Kistler platform. Independent sample t-tests and standardised mean differences (SMD) were used for statistical analysis. Results No significant statistical or clinical differences were found between groups in joint kinematics and jump height (p ≥ 0.01). Sagittal hip and knee peak power generation were statistically lower in the JHS group during the compression phase (p ≤ 0.01), but not clinically relevant (SMD < 0.5). Clinically relevant reductions were found in the JHS group knee and ankle peak moments during the compression phase, and hip and knee peak power generation during the push phase (SMD ≥ 0.5), although these were not statistically significant (p ≥ 0.01). Conclusion The JHS group achieved a similar jump height but with some biomechanical alterations. Further understanding of the joint biomechanical behavior could help to optimize management strategies for JHS, potentially focusing on neuromuscular control and strength/power training.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Healthcare Sciences
Publisher:	Elsevier
ISBN:	18735711 10506411
ISSN:	1050-6411
Date of Acceptance:	9 October 2020
Last Modified:	19 Apr 2023 08:00
URI:	https://orca.cardiff.ac.uk/id/eprint/158088

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