Age-related differences in the maintenance of frontal plane dynamic stability while stepping to targets
作者： Christopher P. Hurt , Mark D. Grabiner
DOI: 10.1016/J.JBIOMECH.2015.01.003
关键词: Younger adults 、 Coronal plane 、 Physical medicine and rehabilitation 、 Young adult 、 Gait 、 Physical therapy 、 Age related 、 Postural Balance 、 Biomechanics 、 Medicine 、 Forward locomotion
摘要: Older adults may be vulnerable to frontal plane dynamic instability, which is of clinical significance. The purpose the current investigation was examine age-related differences in stability by quantifying margin and hip abductor moment generation subjects performing a single crossover step sidestep targets that created three different widths during forward locomotion. Nineteen young (9 males, age: 22.9±3.1 years, height: 174.3±10.2 cm, mass: 71.7±13.0 kg) 18 older 72.8±5.2 174.9±8.6 78.0±16.3 participated. For each walking trial, performed laterally-directed target on force plate. Subjects were instructed “perform lateral keep forward”. peak stepping limb 42% larger compared younger (p<0.001). also more stable than at all executed with slower forward-directed lateral-directed velocity despite similar widths. Age-related abduction moments reflect greater muscular effort reduce likelihood becoming unstable. results this investigation, progressively steps, provide evidence not laterally unstable adults. However, study could compensatory strategy ensure while task.
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