Shiomi T
School of Health Sciences, Kyorin University, Tokyo, Japan.
J Hum Ergol (Tokyo). 1994 Dec;23(2):111-20.
The purpose of the present study was to investigate the effects of different motion patterns of ascending and descending stairs on oxygen consumption (VO2), heart rate (HR) and efficiency. Five healthy males performed ascending and descending by two motion patterns; climbing foot over foot (usual climb) and climbing with both feet on each step (stepping climb), at the stepping rates of 25, 37, 50, and 62 steps.min-1. The results showed that VO2 and HR were significantly higher (on average 10%) with the stepping climb than the usual climb, and the difference between them tended to increase in proportion to the stepping rates. HR values to VO2 in the stepping climb significantly higher than those in the usual climb at each stepping rate during stair ascent and descent. In terms of motor efficiency and efficiency of locomotion (kcal.step-1.kg-1) the usual climb was more efficient than the stepping climb during stair descent and ascent. These results suggested that usual climb has the advantages of lower physiological cost and higher efficiency than the stepping climb with increasing the stepping rate. Furthermore, the effects of motion patterns during stair descent were less than those during ascent.
本研究的目的是调查上下楼梯的不同运动模式对耗氧量（VO2）、心率（HR）和效率的影响。五名健康男性通过两种运动模式进行上下楼梯：一脚接一脚攀爬（常规攀爬）和双脚同时踏在每一级台阶上攀爬（跨步攀爬），跨步速率分别为25、37、50和62步·分钟-1。结果表明，与常规攀爬相比，跨步攀爬时的VO2和HR显著更高（平均高10%），且两者之间的差异倾向于随着跨步速率的增加而增大。在楼梯上升和下降过程中的每个跨步速率下，跨步攀爬时的HR与VO2值显著高于常规攀爬时的相应值。就运动效率和移动效率（千卡·步-1·千克-1）而言，在楼梯下降和上升过程中，常规攀爬比跨步攀爬更高效。这些结果表明，随着跨步速率的增加，常规攀爬比跨步攀爬具有更低的生理成本和更高的效率优势。此外，楼梯下降时运动模式的影响小于上升时的影响。
