کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6205304 1603845 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Toddlers actively reorganize their whole body coordination to maintain walking stability while carrying an object
ترجمه فارسی عنوان
کودکان نوپا به طور منظم هماهنگی کامل بدن خود را برای حفظ ثبات راه رفتن در حین حمل یک جسم سازماندهی می کنند
کلمات کلیدی
راه رفتن، هماهنگی، حامل شی، رشد کودک،
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی


- Functional differentiation of limbs occurs when children perform multiple tasks.
- Children keep the body stable when walking and carrying objects at the same time.
- Transitions between stance and swing affect inter-limb coordination of the shoulders and hips.
- Whole-body coordination may be partitioned as a function of task requirements.

Balanced walking involves freely swinging the limbs like pendula. However, children immediately begin to carry objects as soon as they can walk. One possibility for this early skill development is that whole body coordination during walking may be re-organized into loosely coupled collections of body parts, allowing children to use their arms to perform one function, while the legs perform another. Therefore, this study examines: 1) how carrying an object affects the coordination of the arms and legs during walking, and 2) if carrying an object influences stride length and width. Ten healthy toddlers with 3-12 months of walking experience were recruited to walk barefoot while carrying or not carrying a small toy. Stride length, width, speed, and continuous relative phase (CRP) of the hips and of the shoulders were compared between carrying conditions. While both arms and legs demonstrated destabilization and stabilization throughout the gait cycle, the arms showed a reduction in intra-subject coordination variability in response to carrying an object. Carrying an object may modify the function of the arms from swinging for balance to maintaining hold of an object. The observed period-dependent changes of the inter-limb coordination of the hips and of the shoulders also support this interpretation. Overall, these findings support the view that whole-body coordination patterns may become partitioned in particular ways as a function of task requirements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gait & Posture - Volume 50, October 2016, Pages 75-81
نویسندگان
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