Which Lower Limb Frontal Plane Sensory and Motor Functions Predict Gait Speed and Efficiency on Uneven Surfaces in Older Persons With Diabetic Neuropathy?

被引:18
作者
Allet, Lara [2 ]
Kim, Hogene [3 ]
Ashton-Miller, James A. [3 ]
Richardson, James K. [1 ]
机构
[1] Univ Michigan, Dept Phys Med & Rehabil, Ann Arbor, MI 48108 USA
[2] Univ Appl Sci Western Switzerland, Geneva, Switzerland
[3] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48108 USA
基金
美国国家卫生研究院;
关键词
PERIPHERAL-NERVE FUNCTION; CLINICAL MEASURES; UNIPEDAL BALANCE; MUSCLE STRENGTH; RISK-FACTORS; STEP LENGTH; WALKING; EXERCISE; HEALTH; STABILITY;
D O I
10.1016/j.pmrj.2012.05.002
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Objective: To identify which frontal plane lower limb sensorimotor functions predict gait speed and efficiency (step-width-to-step-length ratio) on an uneven surface. Design: Cross-sectional observational study. Setting: A biomechanics research laboratory. Participants: Thirty-three subjects (14 women [42.4%]; 21 with diabetic distal symmetric peripheral neuropathy [63.6%]), with a spectrum of lower limb sensorimotor functions that ranged from normal to marked diabetic neuropathy. Methods: Independent variables included ankle inversion-eversion proprioceptive thresholds, and normalized measures of maximum voluntary strength and maximum rate of torque development (RTD) of hip abduction-adduction and ankle inversion-eversion. Kinematic data were obtained by using an optoelectronic system as subjects walked over an uneven 10-m surface. Main Outcome Measures: Dependent variables included gait speed and efficiency (determined by step-width-to-step-length ratio) on an uneven surface. Results: Hip adduction RTD and ankle inversion RTD predicted 54% of gait speed, with the former predicting the majority (44%). Ankle inversion RTD was the only significant predictor of gait efficiency, which accounted for 46% of its variability. Age did not predict gait speed or efficiency. Conclusions: The rapid generation of strength in the frontal plane at the hip and ankle is responsible for the successful negotiation of irregular surfaces in older persons. Age demonstrated no independent influence. Training regimens in older persons should include maneuvers that rapidly develop strength in hip adductors and ankle invertors if navigation of uneven surfaces is a functional goal. PM R 2012;4:726-733
引用
收藏
页码:726 / 733
页数:8
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