Gait termination in lower limb amputees.
Gait termination in lower limb amputees.
复制标题
下肢截肢者的步态终止。
DOI：
10.1016/j.gaitpost.2007.02.004
复制
发表时间：
2008
期刊：
影响因子：
2.4
通讯作者：
K. Postema
中科院分区：
文献类型：
--
作者：
A. Vrieling;van Helco Keeken;Tanneke Schoppen;E. Otten;J. Halbertsma;A. Hof;A. Hof;K. Postema
目的研究截肢者在步态终止时功能和调节策略的局限性。设计观察性队列研究。设计观察性队列研究。双侧股、胫侧截肢者和健康对照受试者。主要观察指标领先肢体偏好、时间变量、下肢关节角度、地面反作用力和压力偏移中心。结果与健全受试者相比，截肢者假肢峰值制动地面反作用力降低，假肢引导时没有压力前移中心，内侧压力移位中心增加。截肢者采用多种调节策略来弥补功能上的局限性：偏爱健侧肢体，非患肢产生较长的制动力，步态终止速度减慢，健肢负重较大。结论：股侧截肢者和胫侧截肢者在功能和调节策略上的局限性基本相似。由于缺乏主动踝关节功能，截肢者不能增加制动力，不能将压力中心前移。用非患肢引导有利于适当的减速和平衡控制，但在日常生活中并不总是适用的。重要的是，截肢者在康复期间接受步态终止方面的培训，假肢设计应侧重于假肢脚和膝关节发挥更积极的作用。
OBJECTIVETo study the limitations in function and adjustment strategies of lower limb amputees in gait termination.DESIGNObservational cohort study.SETTINGUniversity Medical Centre.PARTICIPANTSUnilateral transfemoral and transtibial amputees, and able-bodied control subjects.MAIN OUTCOME MEASURESLeading limb preference, temporal variables, lower limb joint angles, ground reaction forces, and centre of pressure shift.RESULTSCompared to able-bodied subjects, amputees showed a decreased peak braking ground reaction force in the prosthetic limb, no anterior centre of pressure shift during leading with the prosthetic limb and an increased mediolateral centre of pressure shift. Amputees used several adjustment strategies to compensate for the limitations in function; leading limb preference for the non-affected limb, longer production of braking force in the non-affected limb, decreased gait termination velocity and more weight-bearing on the non-affected limb.CONCLUSIONLimitations in function and adjustment strategies were mainly similar in transfemoral and transtibial amputees. Due to the lack of active ankle function, amputees were not able to increase the braking force and to shift the centre of pressure anteriorly. Leading with the non-affected limb is favourable for adequate deceleration and balance control, but in daily life not always applicable. It is important that amputees are trained in gait termination during rehabilitation and prosthetic design should focus on a more active role of the prosthetic foot and knee.
DOI：
10.1016/s0003-9993(98)90013-2
发表时间：
1998-03-01
影响因子：
4.3
作者：
Kerrigan, DC;Todd, MK;Collins, JJ
通讯作者：
Collins, JJ