Jacobson B H, Wright T
Oklahoma State University, Stillwater 74078, USA.
Percept Mot Skills. 1998 Oct;87(2):435-8. doi: 10.2466/pms.1998.87.2.435.
The purpose of this study was to compare heartrate carrying a load and rating of perceived exertion with and without hiking sticks while ascending and descending a slope. 11 novice, moderately fit volunteers, ages 18 to 21 years (M = 19.3 yr.) completed two alternate 50-meter, uphill and downhill hikes on a 40 degrees slope during randomly ordered trials with and without fitted hiking sticks and backpacks (15 kg). Paired t test comparisons for 4 trials indicated that mean heartrate was significantly lower only following the first ascent by those using hiking sticks than those without sticks. Rating of perceived exertion also was significantly lower (p < .05) for those using hiking sticks. Perhaps heartrate may be lower at the onset of climbing using hiking sticks, but as the duration the hike is extended, heartrates become comparable, presumably due to the transfer of energy utilization from the legs to the upper body.
本研究的目的是比较在有坡度的上坡和下坡过程中，使用登山杖和不使用登山杖时的心率及主观用力感觉等级。11名年龄在18至21岁（平均年龄19.3岁）的新手、身体状况中等的志愿者，在随机安排的试验中，背着15公斤背包，分别在有和没有配备登山杖的情况下，在40度的斜坡上完成了两次交替的50米上坡和下坡徒步。对4次试验进行配对t检验比较表明，仅在第一次上坡时，使用登山杖者的平均心率显著低于未使用登山杖者。使用登山杖者的主观用力感觉等级也显著更低（p < .05）。也许在开始攀爬时使用登山杖心率会更低，但随着徒步时间的延长，心率会变得相当，大概是由于能量利用从腿部转移到了上半身。
