摘要
背景:双任务步行在日常生活中较为常见,且相对单任务更具挑战性,更有利于发现日常生活活动中潜在的步态异常,被广泛用来评估注意力分散时运动表现和步态控制的变化。目的:应用三维步态分析系统比较健康青年和老年人在双任务步行时步态特征的差异,为预防老年人跌倒提供相关参考依据。方法:青年组21例,年龄(24.57±2.27)岁,身高(1.64±0.08)m;老年组25例,年龄(62.72±2.39)岁,身高(1.60±0.07)m。两组受试者在进行平地步行任务的同时进行"100以内任意数字减1(倒数)"的计算任务。应用Motion Analysis三维运动分析系统及Visual 3D软件进行步态数据采集与分析,比较两组受试者执行双任务步行时步态时空参数及动力学参数的差异。结果与结论:①时空参数:老年组跨步长小于青年组[(1.14±0.09)m vs.(1.20±0.07)m,P<0.05]、右侧步长小于青年组[(0.57±0.04)m vs.(0.60±0.04)m,P<0.01];②动力学参数:老年组左侧髋外展肌力矩第二峰值高于青年组[(0.94±0.1)Nm/kgvs.(0.86±0.16)Nm/kg,P<0.01]、左侧踝跖屈肌力矩低于青年组[(1.27±0.11)Nm/kgvs.(1.35±0.15)Nm/kg,P<0.05]、左右两侧的踝外翻肌力矩皆低于青年组[(0.31±0.14)Nm/kg vs.(0.45±0.16)Nm/kg,P<0.01;(0.38±0.15)Nm/kg vs.(0.51±0.14)Nm/kg,P<0.01]。③结果提示:相对于青年人,老年人在双任务步行时,步行自动化能力较低;双任务步行主要影响老年人的髋踝关节,可能与双任务步行对老年人挑战较大有关,使之采取了相应的代偿模式以保持稳定;双任务下老年人的步态变化特征可以考虑为预防跌倒提供参考依据。
BACKGROUND:Dual-task walking is more common in daily life,and more challenging than single-task walking.It is more conducive to find potential gait abnormalities in daily life activities.It is widely used to evaluate the changes in motor performance and gait control when attention is distracted.OBJECTIVE:The three-dimensional gait analysis system was applied to compare the difference of gait characteristics under dual-task walking between healthy young people and elderly people so as to provide reference for preventing the elderly people from falling.METHODS:In the youth group,there were 21 cases aged(24.57±2.27)years old and with the height of(1.64±0.08)m.In the elderly group,there were 25 cases aged(62.72±2.39)years old and with the height of(1.60±0.07)m.The two groups of subjects performed the calculation task of“minus 1(reciprocal)starting from any number within 100”during level walking.Motion Analysis system and Visual 3D software were applied to collect and analyze the gait data.The differences of gait spatiotemporal and kinetic parameters between the two groups were compared when performing dual-task walking.RESULTS AND CONCLUSION:(1)Spatiotemporal parameters:Compared with youth group,both stride length[(1.14±0.09)m vs.(1.20±0.07)m,P<0.05]and right step length[(0.57±0.04)m vs.(0.60±0.04)m,P<0.01]were smaller in the elderly group.(2)Kinetic parameters:Compared with the youth group,the left second peak hip abduction moment was higher[(0.94±0.1)Nm/kg vs.(0.86±0.16)Nm/kg,P<0.01];the left ankle plantar flexor moment was lower[(1.27±0.11)Nm/kg vs.(1.35±0.15)Nm/kg,P<0.05];and bilateral ankle valgus muscle moments were lower[(0.31±0.14)Nm/kg vs.(0.45±0.16)Nm/kg,P<0.01;(0.38±0.15)Nm/kg vs.(0.51±0.14)Nm/kg,P<0.01]in the elderly group.(3)These results suggest that the walking automation ability of the elderly group was lower than youth group during dual-task walking.Dual-task walking mainly affects the hip and ankle joints of the elderly,which may be related to the challenge of dual-task walking to the elderly so that they could adapt the corresponding compensatory mode to maintain stability.The characteristics of gait changes in the elderly under dual tasks can be considered as a reference for the prevention of falls.
作者
杨凤娇
王芗斌
侯美金
喻娇
李镇辉
傅升星
林紫玲
刘本科
Yang Fengjiao;Wang Xiangbin;Hou Meijin;Yu Jiao;Li Zhenhui;Fu Shengxing;Lin Ziling;Liu Benke(Fujian University of Traditional Chinese Medicine,Fuzhou 350122,Fujian Province,China;Key Laboratory of the Ministry of Education of Bone Injury and Sports Rehabilitation of Traditional Chinese Medicine,Fuzhou 350122,Fujian Province,China;Third People’s Hospital Affiliated to Fujian University of Traditional Chinese Medicine,Fuzhou 350122,Fujian Province,China;Department of Rehabilitation Medicine,Longyan First Hospital,Fujian Medical University,Longyan 364000,Fujian Province,China)
出处
《中国组织工程研究》
CAS
北大核心
2021年第3期344-349,共6页
Chinese Journal of Tissue Engineering Research
基金
国家自然科学基金(81774384),项目负责人:王芗斌
福建省康复产业研究院开放课题(2015Y2001-55),项目负责人:王芗斌
福建省科技厅引导性项目(2017Y0046),项目负责人:王芗斌
福建中医药大学校管课题(X2017020),项目负责人:侯美金。
关键词
双任务
步态分析
时空参数
动力学参数
青年人
老年人
dual task
gait analysis
spatiotemporal parameters
kinetic parameter
youth
elderly
作者简介
第一作者:杨凤娇,女,1994年生,安徽省淮北人,汉族,福建中医药大学在读硕士,主要从事膝骨关节炎的基础与临床研究,https://orcid.org/0000-0002-7576-0982;通讯作者:王芗斌,教授,博士生导师,福建中医药大学康复医学院,福建省福州市350122,https://orcid.org/0000-0002-1293-8755。
