Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (29): 4692-4696.doi: 10.3969/j.issn.2095-4344.2818

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Relationship between proprioception and postural stability of lower limbs in healthy adults

Chen Zehua1, Ye Xiangling1, Chen Weijian1, Xu Xuemeng1, 2   

  1. 1Fifth Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2Guangdong Second Traditional Chinese Medicine Hospital, Guangzhou 510405, Guangdong Province, China

  • Received:2019-10-31 Revised:2019-11-08 Accepted:2019-12-05 Online:2020-10-18 Published:2020-09-15
  • Contact: 陈泽华,男,1989年生,湖南省邵阳市人,广州中医药大学在读博士,主治医师,主要从事骨关节病研究。
  • About author:Chen Zehua, MD candidate, Attending physician, Fifth Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:
    Guangdong Province Famous Chinese Medicine Heritage Studio Construction Project, No. [2017]17; Guangdong Provincial Special Fund for Industrial and Information Development, No. [2016]69; Key Specialized Construction Project of the National Administration of Traditional Chinese Medicine, No. [2012]7; Guangdong Natural Science Foundation-Doctor Launched Project, No. 2014A030310128; Breakthrough Projects of Superiority Diseases of Traditional Chinese Medicine in Guangdong Province, No. [2015]19; Guangdong Provincial Science and Technology Plan, No. 20191401

Abstract:

BACKGROUND: Proprioception is one of the many factors affecting posture stability, but the relationship and

differences between proprioception and stability of the lower extremities remain unclear.

OBJECTIVE: To investigate the differences of static stability and proprioception between dominant and non-dominant legs and the correlation between proprioception and stability in healthy adults without the influence of foot posture.

METHODS: Sway length (SL) and sway area (SA) of the center of pressure (COP) were measured in 30 healthy adults with neutral feet standing on both legs and one leg, and the mean trajectory error (ATE) and completion time (CT) of lower limbs were recorded during proprioception evaluation. The study was approved by the Ethics Committee of Guangdong Second Traditional Chinese Medicine Hospital [No. (2019)50], and all participants voluntarily signed informed consent before the initiation of the study.

RESULTS AND CONCLUSION: The ATE of the dominant leg was larger than that of the non-dominant leg (P < 0.05). There were significant correlations between left and right legs in proprioception and stability (P < 0.05 or 0.01). The associations between SL in left legs and ATE in right legs and between SL in right legs and ATE in left legs (P < 0.05) were significantly adjusted for the intrinsic differences of proprioception and stability. There was a significant correlation between SL standing with dominant legs and SL in two legs static standing (P < 0.05). Therefore, the proprioception of the dominant legs was significantly worse than that of the non-dominant legs, but there was no difference in their stability. To conclude, the stability of the lower limbs is not only related to the proprioception at the same side, but also to the proprioception at the opposite side. In the process of training and clinical rehabilitation therapy, if we hope to improve stability and proprioception of the lower limbs, we should not only strengthen training of the ipsilateral limb, but also pay attention to the contralateral proprioception.

Key words: proprioception, stability, center of pressure, lower limbs

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