کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5709551 1604179 2017 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Whole-body vibration induces distinct reflex patterns in human soleus muscle
ترجمه فارسی عنوان
ارتعاش کامل بدن الگوی های رفلکس متمایز در عضله انسویی انسان ایجاد می کند
کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی
The neuronal mechanisms underlying whole body vibration (WBV)-induced muscular reflex (WBV-IMR) are not well understood. To define a possible pathway for WBV-IMR, this study investigated the effects of WBV amplitude on WBV-IMR latency by surface electromyography analysis of the soleus muscle in human adult volunteers. The tendon (T) reflex was also induced to evaluate the level of presynaptic Ia inhibition during WBV. WBV-IMR latency was shorter when induced by low- as compared to medium- or high-amplitude WBV (33.9 ± 5.3 ms vs. 43.8 ± 3.6 and 44.1 ± 4.2 ms, respectively). There was no difference in latencies between T-reflex elicited before WBV (33.8 ± 2.4 ms) and WBV-IMR induced by low-amplitude WBV. Presynaptic Ia inhibition was absent during low-amplitude WBV but was present during medium- and high-amplitude WBV. Consequently, WBV induces short- or long-latency reflexes depending on the vibration amplitude. During low-amplitude WBV, muscle spindle activation may induce the short- but not the long-latency WBV-IMR. Furthermore, unlike the higher amplitude WBV, low-amplitude WBV does not induce presynaptic inhibition at the Ia synaptic terminals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electromyography and Kinesiology - Volume 34, June 2017, Pages 93-101
نویسندگان
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