|
KMID : 0377519840090030331
|
|
Chung-Ang Journal of Medicine
1984 Volume.9 No. 3 p.331 ~ p.339
|
|
|
Mechanical Efficiency of Treadmill Walking for College Students as a Function of Speed and Grade of Inclination
|
|
Lee Chong-Kwan
Chung Kyou-Chull
Hong Yeon-Pyo
|
|
|
Abstract
|
|
|
|
The mechanical efficiency of treadmill walking as a function of speed and grade of inclination was studied on 17 male and 6 female college students. The speed of motor-driven treadmill was adjusted to 2, 4, 6 and 8㎞/hr, and the grade of inclination 0-25% in male and 0-12.5% in female subjects. The mechanical efficiency of treadmill walking showed the highest value of 32.7±6.01% in male and 31.8±4.04% in female at a speed of 4㎞/hr. The efficiency was lower at a speed of 2,6 to 8㎞/hr. The mechanical efficiency of treadmill walking decreased linearly as a grade of inclination increased. Net mechanical efficiency due to grade was slightly increased as a grade of inclination was raised up to 10%, but, above that grade, it remained constant within 5% increase over the zero level walking at all speeds. General formulae for prediction of the mechanical efficiency during treadmill walking as a function of speed and grade were derived as follows: log M. E.(%)=0.258-0.029V+5.5×10^-3G+4.1×10^-3VG for male, and log M. E.(%)=0.142-0.011V+0.0357G+1.0×10^-4VG for female. No statistically significant difference between sexes was observed in the mechanical efficiency during treadmill walking at the same speed and same grade of inclination.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|