کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4065002 1266236 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of loading on maximum vertical jumps: Selective effects of weight and inertia
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Effects of loading on maximum vertical jumps: Selective effects of weight and inertia
چکیده انگلیسی

A novel loading method was applied to explore selective effects of externally added weight (W), weight and inertia (W + I), and inertia (I) on maximum counter-movement jumps (CMJ) performed with arm swing. Externally applied extended rubber bands and/or loaded vest added W, W + I, and I corresponding to 10–40% of subjects’ body mass. As expected, an increase in magnitude of all types of load was associated with an increase in ground reaction forces (GRF), as well as with a decrease in both the jumping performance and power output. However, of more importance could be that discernible differences among the effects of W, W + I, and I were recorded despite a relatively narrow loading range. In particular, an increase in W was associated with the minimal changes in movement kinematic pattern and smallest reduction of jumping performance, while also allowing for the highest power output. Conversely, W + I was associated with the highest ground reaction forces. Finally, the lowest maxima of GRF and power were associated with I. Although further research is apparently needed, the obtained finding could be of potential importance not only for understanding fundamental properties of the neuromuscular system, but also for optimization of loading in standard athletic training and rehabilitation procedures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electromyography and Kinesiology - Volume 22, Issue 2, April 2012, Pages 286–293
نویسندگان
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