+------------------+----------------------------------------+-----------+ | |Oxygen Consumption in Cubic Centimeters.| | | +---------+------------------------------+ | | | | After Deducting Value | | | Form of Work. | | for Rest. |Respiratory| | | Total. +-----------+------------------+ Quotient. | | | | | For Each | | | | | Total. | Kilo of Moving | | | | | | Weight. | | +------------------+---------+-----------+------------------+-----------+ |Standing at rest | 263.75 | .... | .... | 0.801 | |Walking on a level| 763.00 | 499.25 | 8.990 | 0.805 | |Climbing | 1253.20 | 989.45 | 17.819 | 0.801 | +------------------+---------+-----------+------------------+-----------+ Remembering that these figures represent the oxygen consumption for only one minute of time, it is easy to see the striking effect of moderate and vigorous exercise on respiratory interchange. Simply walking along a level suffices to increase the consumption of oxygen threefold over what occurs when the body stands at rest. When the more vigorous exercise attendant on lifting the body up a steep incline is attempted, most striking is the great increase in the amount of oxygen consumed. We thus see another forcible illustration of the influence of muscular activity upon the exchange of matter in the body, and a further confirmation of the statement, so many times made, that oxidation--especially the oxidation of fats and carbohydrates by which large quantities of heat are set free, easily convertible into mechanical energy--is a primary factor in the metabolic processes, by which the machinery of the living man is able to work so efficiently.