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ERIC Number: ED083216
Record Type: Non-Journal
Publication Date: 1973
Pages: 16
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: N/A
Oxygen Consumption in the First Stages of Strenuous Work as a Function of Prior Exercise.
Gutin, Bernard; And Others
This study examined the extent to which 10 minutes of prior exercise (PE) at a workload adjusted to maintain a heart rate (HR) of 140 beats per minute could facilitate the mobilization of the oxygen transport system in a strenuous criterion task (CT). The control treatment involved completion of the CT following 10 minutes of rest on the ergometer. Oxygen uptake was significantly higher following PE at every stage except the second 30-second period of the CT and the 60-second post-CT period. Ventilation was significantly higher following PE at every stage except the last 30 seconds of the CT and the 60-second post-CT period. HR was significantly higher following PE at every stage. Oxygen pulse was significantly higher following PE only during the 30-second pre-CT period and the first 30 seconds of the CT, indicating that the PE facilitated the mobilization of stroke volume (SV) and/or atrioventricular oxygen difference. The similar values for oxygen pulse during the last 90 seconds of the CT indicate that the higher oxygen uptake following PE was a function of higher HR, not higher SV or atrioventricular oxygen difference. (Author/JA)
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A