کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2703325 1144590 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The acute effect of vibration exercise on concentric muscular characteristics
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
The acute effect of vibration exercise on concentric muscular characteristics
چکیده انگلیسی
This study was designed to compare the acute effect of vibration exercise with a concentric-only activity (arm cranking) on concentric-only muscle action using an upper body isoinertial exercise. Twelve healthy, physically active men, 30.0 y ± 6.1 (mean ± S.D.); height 1.81 m ± 0.06; and weight 83.4 kg ± 9.7, performed four maximal prone bench pull (PBP) efforts before and after a 5-min period of three different interventions: (1) acute vibration exercise (VBX); (2) arm cranking (AC); and (3) control (no exercise) (NVBX). Electromyography (EMG) activity was assessed from the middle trapezius muscle during PBP. Acute VBX was induced with an electric-powered dumbbell (DB) (frequency 26 Hz, amplitude 3 mm), with 30-s exposures at five different shoulder positions. NVXB was performed with the participants holding the DB with the machine turned off, and AC was performed at 25 W. There was a significant (intervention × pre-post) interaction such that acute VBX and AC enhanced peak power by 4.8% (p < 0.001) and 3.0% (p < 0.001), respectively, compared to NVBX (−2.7%). However, there was no effect of any treatments on EMG activity compared to the control. In conclusion, acute VBX provides an acute ergogenic effect which potentiates concentric-only muscle performance, though not to a significantly greater extent than concentric (arm cranking) exercise.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Science and Medicine in Sport - Volume 11, Issue 6, November 2008, Pages 527-534
نویسندگان
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