The oxygen cost of an escape from an underground coal mine
Journal Article
·
· Am. Ind. Hyg. Assoc. J.; (United States)
Six 27 to 63-year-old coal miners performed an 'escape' exercise from an underground mine along a passageway that required walking and running erect or stooped, duckwalking or crawling. The miners travelled at different speeds, for each mode of locomotion. The minute pulmonary ventilation, O/sub 2/ uptake and heart ratio, recorded continuously on magnetic tape, indicated similar average and peak values for all modes of locomotion. Compared to the aerobic capacity obtained during graded treadmill test to exhaustion, the average effort of the 'escape' was performed at 64% and the peak effort at 70% of the miners' aerobic capacity for an 'escape' time of 58 min.
- OSTI ID:
- 5458576
- Journal Information:
- Am. Ind. Hyg. Assoc. J.; (United States), Vol. 44:7
- Country of Publication:
- United States
- Language:
- English
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