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KMID : 0381319750140040001
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Korean Journal of Occupational Health
1975 Volume.14 No. 4 p.1 ~ p.4
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Changes in heart rate & oxygen uptake on unsteady-state ergometer work
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Abstract
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8 healthy male subjects aged 22∼26 years were performed to ride bicycle ergometer with workload of 125, 150 and 175 watts just by the time which the final working heart rate was reached to 130, 140, 150, and 160(beats/min).
We tried to evaluate the effects of work intensity & duration on the oxygen uptake at end of work and recovery phase of heart rate when the final working heart rate was same regardless to workload and duration.
The results obtained were as follows;
1. At the ergometer work on which the final heart rate was 130 and 140(beats/min), the heavier the workload, the oxygen uptake at end of work was decreased gradually. But in the case of ergometer work on which the final working heart rate was 150 and 160(beats/min), there was no changes in oxygen uptake at end of work.
2. There were no differences in recovery time regardless to workload and duration when the final working geart rate was same.
3. P_(AV) ₁．₂．₃of ergometer work was increased gradually according to the final heart rate, but not to workload and work duration.
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