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CONTRIBUTORS:
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JOURNAL:
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YEAR:
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1988
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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ROWING; ATHLETE; NON-ATHLETE; COMPARATIVE-STUDY; HEART-RATE; LONG-DISTANCE-RUNNING; TREADMILL; EXERCISE; GRADIENT; AEROBIC-THRESHOLD; TRAINING-LOAD; AEROBIC-CAPACITY; KINETICS
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DISCIPLINE:
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No discipline assigned
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HTTP:
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LANGUAGE:
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English
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PUB ID:
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103-366-262
(Last edited on
2002/02/27 18:45:02 US/Mountain)
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SPONSOR(S):
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ABSTRACT:
In order to describe the kinetics of the reaction of the heart rate (HR) to the onset of exercise of constant intensity, the half-time (HT) of HR can be used. First in a study of exercise of intensity on a cycle ergometer, the HT in 15 trained male rowers and 11 untrained male students was determined. In the trained subjects HR was smaller than in untrained students. In both groups, HT was positively correlated with resting HR and negatively correlatively correlated with maximal oxygen uptake. The regulation of HR in the transition range was concluded to be very similar to the regulation of VO2 and energy requirements. The second part of this work hypothesized that the point where HR departs from linearity in an incremental exercise test may be used to predict the ventilatory threshold (Tvent). To examine this, 28 trained male long-distance runners were tested on a treadmill and 17 untrained young male subjects were tested on a cycle ergometer using a continuous incremental protocol. No significant differences were found between Tvent and HR break point levels. It was concluded from this second study that the HR break point level coincides with Tvent.
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STATISTICS
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