کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5032179 | 1471110 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Developing a methodology for estimating the drag in front-crawl swimming at various velocities
ترجمه فارسی عنوان
در حال توسعه یک روش برای تخمین کشیدن در شنا کردن در جلو در سرعت های مختلف
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کلمات کلیدی
کشیدن فعال، محرک باقی مانده، نیمههمه کشیدن منفعل،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
چکیده انگلیسی
We aimed to develop a new method for evaluating the drag in front-crawl swimming at various velocities and at full stroke. In this study, we introduce the basic principle and apparatus for the new method, which estimates the drag in swimming using measured values of residual thrust (MRT). Furthermore, we applied the MRT to evaluate the active drag (Da) and compared it with the passive drag (Dp) measured for the same swimmers. Da was estimated in five-stages for velocities ranging from 1.0 to 1.4 m sâ1; Dp was measured at flow velocities ranging from 0.9 to 1.5 m sâ1 at intervals of 0.1 m sâ1. The variability in the values of Da at MRT was also investigated for two swimmers. According to the results, Da (Da = 32.3 v3.3, N = 30, R2 = 0.90) was larger than Dp (Dp = 23.5 v2.0, N = 42, R2 = 0.89) and the variability in Da for the two swimmers was 6.5% and 3.0%. MRT can be used to evaluate Da at various velocities and is special in that it can be applied to various swimming styles. Therefore, the evaluation of drag in swimming using MRT is expected to play a role in establishing the fundamental data for swimming.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 54, 21 March 2017, Pages 123-128
Journal: Journal of Biomechanics - Volume 54, 21 March 2017, Pages 123-128
نویسندگان
Kenzo Narita, Motomu Nakashima, Hideki Takagi,