کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6207759 1265666 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatiotemporal variability during gait initiation in Parkinson's disease
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Spatiotemporal variability during gait initiation in Parkinson's disease
چکیده انگلیسی

During gait initiation (GI), consistency of foot placement while stepping is important in making successful transitions from a state of stable static posture to an unstable state of dynamic locomotion. In populations characterized by gait dysfunction and postural instability, such as persons with Parkinson's disease (PD), the ability to generate a consistent stepping pattern during GI may be essential in the prevention of falls. However, little is known about GI variability in persons with PD as compared to their healthy elderly peers. Therefore, this study investigated spatiotemporal variability during the first two steps of GI in 46 persons with idiopathic PD and 49 healthy age-matched adults. Stepping characteristics, including the length, width, and time of the first two steps of GI as well as their coefficients of variation (CV) were compared between groups. Persons with PD initiated gait with significantly shorter steps (swing step length = .463 vs. .537 m, stance step length = .970 vs. 1.10 m) and higher variability in step length (swing step CV = 8.82 vs. 5.45, stance step CV = 6.76 vs. 3.61). Persons with PD also showed significantly higher variability in the time of the swing step (swing step CV = 10.0 vs. 7.4). GI variability did not differ significantly between disease stages in persons with PD. Because greater variability in these measures during gait is related to an increased risk of falls, we propose that higher GI variability may play a considerable role in falls frequently observed during transitions from quiet standing in PD.

► We investigate variability of gait initiation in persons with Parkinson's disease and their healthy peers. ► Persons with PD demonstrate higher variability in step length and step time during gait initiation. ► Gait initiation variability did not differ between disease stages in persons with Parkinson's disease.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 36, Issue 3, July 2012, Pages 340-343
نویسندگان
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