Variation in trunk kinematics influences variation in step width during treadmill walking by older and younger adults

被引:95
作者
Hurt, Christopher P. [1 ]
Rosenblatt, Noah [1 ]
Crenshaw, Jeremy R. [1 ]
Grabiner, Mark D. [1 ,2 ]
机构
[1] Univ Illinois, Dept Kinesiol & Nutr, Chicago, IL 60612 USA
[2] Univ Illinois, Dept Bioengn, Chicago, IL 60612 USA
关键词
Biomechanics; Dynamic stability; Gait; Step width; FOOT PLACEMENT; VARIABILITY; TIME; GAIT; STABILIZATION; PATTERNS; BALANCE; AGE;
D O I
10.1016/j.gaitpost.2010.02.001
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Step-by-step variations in step width have been hypothesized to reflect adjustments to swing foot placement in response to preceding frontal plane trunk kinematics. The present study tested this hypothesis while 12 younger and 11 older subjects walked on treadmill for 10 min at a self-selected velocity. The relationship between step-by-step variations in step width and frontal plane trunk COM kinematics was determined using multiple regression analysis. Trunk kinematics at midstance were significantly (p < 0.001) and strongly (R-2 = 0.54) related to the subsequent foot placement supporting the primary hypothesis. Additionally, this relationship was significantly affected by age (p < 0.001) and stepping limb (p < 0.001). These results implicate feedback driven control of foot trajectory during the swing phase. Further, they provide a biomechanical framework by which loss of frontal plane dynamic stability may result from a step width that is insufficient to decelerate and redirect trunk kinematics in preparation for the next step. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:461 / 464
页数:4
相关论文
共 30 条
[1]   Active control of lateral balance in human walking [J].
Bauby, CE ;
Kuo, AD .
JOURNAL OF BIOMECHANICS, 2000, 33 (11) :1433-1440
[2]  
Cohen J., 1988, Statistical power analysis for the behavioral sciences, VSecond
[3]   Mechanical and metabolic requirements for active lateral stabilization in human walking [J].
Donelan, JM ;
Shipman, DW ;
Kram, R ;
Kuo, AD .
JOURNAL OF BIOMECHANICS, 2004, 37 (06) :827-835
[4]   Time and frequency domain analysis of ground reaction forces during walking: An investigation of variability and symmetry [J].
Giakas, G ;
Baltzopoulos, V .
GAIT & POSTURE, 1997, 5 (03) :189-197
[5]   Attention demanding tasks during treadmill walking reduce step width variability in young adults [J].
Grabiner M.D. ;
Troy K.L. .
Journal of NeuroEngineering and Rehabilitation, 2 (1)
[6]   Predicting dynamic postural instability using center of mass time-to-contact information [J].
Hasson, Christopher J. ;
Van Emmerik, Richard E. A. ;
Caldwell, Graham E. .
JOURNAL OF BIOMECHANICS, 2008, 41 (10) :2121-2129
[7]  
Kleinbaum D. G., 2008, Applied Regression Analysis and Other Multivariate Methods, V4th ed.
[8]   Asymmetry of arm-swing not related to handedness [J].
Kuhtz-Buschbeck, J. P. ;
Brockmann, K. ;
Gilster, R. ;
Koch, A. ;
Stolze, H. .
GAIT & POSTURE, 2008, 27 (03) :447-454
[9]   Stabilization of lateral motion in passive dynamic walking [J].
Kuo, AD .
INTERNATIONAL JOURNAL OF ROBOTICS RESEARCH, 1999, 18 (09) :917-930
[10]   Biomechanics of overground vs. treadmill walking in healthy individuals [J].
Lee, Song Joo ;
Hidler, Joseph .
JOURNAL OF APPLIED PHYSIOLOGY, 2008, 104 (03) :747-755