Energy Expenditure While Standing or Walking Slowly Uphill or Downhill with Loads.

摘要

Eight fit male subjects (24 yr, 176 cm, 79 kg) stood, or walked at speeds of 0.5 or 0.9 m s to the -1 power for 20-min periods on grades of -10 to +25% with loads of 20 or 40 kg. Energy expenditure (watt) was not significantly different in any of the standing conditions; grade and load increased energy expenditure while standing but not significantly. Although all the standing energy expenditure means were relatively low, high perceived exertion ratings suggest limits to tolerance time in some of these conditions. All the standing means were significantly lower than the walking means. Walking 0.9 m s to the -1 power on a -10% grade was significantly lower than walking on 0.5 m s to the -1 power on a +10% grade, which was significantly lower than walking 0.9 m s to the -1 power on a +10% grade.