实用医学杂志2024，Vol.40Issue(10)：1376-1381,6.DOI:10.3969/j.issn.1006-5725.2024.10.008
拇外翻老年人坐立过程中的肌肉协同特征分析
Characterization of muscle synergy during sitting and standing in older adults with hallux valgus
摘要
Abstract
Objective To analyze changes in neuromuscular control during sit-to-stand(STS)in older adults with hallux valgus(HV)through muscle synergy,and thus to explore the effect of falls in older adults with HV.Methods Four groups of subjects were included in this study,13 young controls(YC);12 young HVgroup(HVY);14 healthy elderly controls(EC);and 15 elderly HV group(HVE).All subjects completed the STS maneuver in an armless chair,and EMG data were integrated using non-negative matrix factorization to compare muscle synergies in the YC,HVY,EC,and HVE groups;plantar pressures(COP),ground reaction forces(GRF),and fall scores(FES-I)were collected.Results Compared with YC group,HVY,EC,and HVE groups had lower relative activation amplitude of abductor hallucis and lateral gastrocnemius in STS preparation phase;meanwhile,EC and HVE groups needed more muscle activation to maintain stability of trunk and foot-ankle joints in STS stabi-lization phase;and HVE group needed more co-contractions of thigh muscles to maintain stability of the knee joint.The COP,FES-I of HVE group was higher than that of the other groups(P<0.05).Conclusion In STS,healthy older adults and older adults with HV required more muscle activation to maintain trunk and ankle stability;older adults with HV required more co-contraction of the thigh muscles to maintain knee stability;in addition to this,older adults with HV were more prone to falls.关键词
老年拇外翻/肌肉协同/坐立运动/非负矩阵分解Key words
elderly hallux valgus/muscle synergy/sit-to-stand exercise/nonnegative matrix factor-ization分类
医药卫生引用本文复制引用
刘燕燕,钱蕾,刘瑞平,欧阳钧,刘刚..拇外翻老年人坐立过程中的肌肉协同特征分析[J].实用医学杂志,2024,40(10):1376-1381,6.基金项目
国家自然科学基金项目(编号:82274619,32101054) （编号:82274619,32101054）
广东省自然科学基金项目(编号:2021A1515010877) （编号:2021A1515010877）
广州市基础与应用基础研究项目(编号:2023A04J1968) （编号:2023A04J1968）
