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Chinese Journal of Joint Surgery(Electronic Edition) ›› 2023, Vol. 17 ›› Issue (01): 19-28. doi: 10.3877/cma.j.issn.1674-134X.2023.01.003

• Clinical Research • Previous Articles     Next Articles

Kinematic characteristics of ankle joint during walking in young adults with general joint hypermobility

Haobin Chen1, Xiaolong Zeng2, Zhenyan Xie3, Guoqing Zhong3, Xuecheng He4, Xinyu Zhou5, Wenhan Huang3, Yu Zhang3,()   

  1. 1. Department of Orthopedic Oncology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
    2. School of Medicine South China University of Technology, Guangzhou 510006, China
    3. Department of Orthopedic Oncology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
    4. The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
    5. Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
  • Received:2021-05-05 Online:2023-02-01 Published:2023-05-05
  • Contact: Yu Zhang

Abstract:

Objective

To analyse kinematic characteristics and regularity of six-degrees of freedom (6-DOF) of both healthy participates and study subjects with general joint hypermobility (GJH) by collecting ankle gait data during uphill and downhill walking.

Methods

Healthy college students, excluded from ankle history and medical history associated with neuropsychiatric diseases, were divided into control group (Beighton score<four, 45 subjects) and general joint hypermobility group (GJH group, Beighton score≥four, 33 subjects). A three-dimensional motion analysis system was employed to collect kinematic parameters of ankle joints from the healthy participates and study subjects during walking uphill and downhill. Independent sample t test was used to analyse the two groups of gait data which were in accordance with normal distribution and homogeneity of variance. If a normal distribution or variance homogeneity test was not applicable, Mann-Whitney U test was used instead.

Results

There was no significant difference in the angles of dorsal extension and plantar flexion between the two groups in uphill walking (P>0.05). While in downhill walking, GJH group showed a smaller angle of plantar flexion in the initial contact and at the end of swing phase, with flexion and extension angles at (-28.19±9.23)° vs (-32.92±9.90)° (t=2.119, P=0.037) in the initial landing state of 2% gait. In comparison with the control group, GJH group showed greater medial rotation angle and lateral translation when walking uphill and downhill, with medial and lateral rotations while in uphill walking with loading response period of 9% gait: (-2.84±6.18)° vs (-0.04±5.93)° (t=2.028, P=0.046). In downhill walking, in the GJH group, the medial rotation and lateral translation occurred with more significantly increased angles of medial and lateral rotations in loading response period of 9% gait: (-7.7±4.8)° vs (-5.0±6.3)° (t=2. 057, P=0. 043).

Conclusions

Compared with a normal young adult, the young adult with GJH showed more significant changes in kinematic parameters in downslope walking than an upslope walking. In order to adapt to higher functional requirements in downhill movement, muscles such as gastrocnemius muscle should be excessively activated to maintain an ankle stability.

Key words: Joint instability, Ankle joint, Gait analysis

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