کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4050472 | 1264933 | 2012 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Short-term changes in protective stepping for lateral balance recovery in older adults Short-term changes in protective stepping for lateral balance recovery in older adults](/preview/png/4050472.png)
BackgroundFall prevention for older adults is dependent on the ability to maintain protective balance. This study measured the short-term changes of protective stepping following waist-pull perturbations in the medio-lateral direction, to identify what, if any, properties of protective stepping are improved with repeated perturbation exposures.MethodsSixty waist-pulls (2 directions × 5 intensities × 6 repetitions) from a single session were analyzed separately as early, middle, and late testing periods, for a comparison over time of typical responses. Outcome measures included the number of evoked steps, type of step, incidence of interlimb collisions, and kinematic and kinetic properties of the first step in frequently used crossover-type responses.FindingsImprovements were evident as significantly reduced number of steps and collisions. However, these improvements could not be completely accounted for by significant changes in first step kinematic or kinetic properties.InterpretationWe infer that older individuals experiencing repeated lateral waist-pull perturbations optimize the predictive or feed-forward motor control for balance recovery through stepping.
Journal: Clinical Biomechanics - Volume 27, Issue 2, February 2012, Pages 151–157