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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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DISCREPANCY BETWEEN TRAINING, COMPETITION AND LABORATORY MEASURES OF MAXIMUM HEART RATE IN NCAA DIVISION 2 DISTANCE RUNNERS |
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Katherine Semin1, Alvah C. Stahlnecker IV1, Kate Heelan1, Gregory A. Brown1, Brandon S. Shaw2 
and Ina Shaw3 |
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1University of Nebraska at Kearney, USA, 2Tshwane University of Technology, Republic of South Africa 3Vaal University of Technology, Republic of South Africa |
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© Journal of Sports Science and Medicine (2008) 7, 455 - 460 Search Google Scholar for Citing Articles |
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| ABSTRACT | |||
| A percentage of either measured or predicted maximum heart rate
is commonly used to prescribe and measure exercise intensity. However, maximum
heart rate in athletes may be greater during competition or training than
during laboratory exercise testing. Thus, the aim of the present investigation
was to determine if endurance-trained runners train and compete at or above
laboratory measures of 'maximum' heart rate. Maximum heart rates were measured
utilising a treadmill graded exercise test (GXT) in a laboratory setting
using 10 female and 10 male National Collegiate Athletic Association (NCAA)
division 2 cross-country and distance event track athletes. Maximum training
and competition heart rates were measured during a high-intensity interval
training day (TR HR) and during competition (COMP HR) at an NCAA meet. TR
HR (207 ± 5.0 b·min-1; means ± SEM) and COMP HR (206 ± 4 b·min-1)
were significantly (p < 0.05) higher than maximum heart rates obtained
during the GXT (194 ± 2 b·min-1). The heart rate at the ventilatory
threshold measured in the laboratory occurred at 83.3 ± 2.5% of the heart
rate at VO2 max with no differences between the men and women.
However, the heart rate at the ventilatory threshold measured in the laboratory
was only 77% of the maximal COMP HR or TR HR. In order to optimize training-induced
adaptation, training intensity for NCAA division 2 distance event runners
should not be based on laboratory assessment of maximum heart rate, but
instead on maximum heart rate obtained either during training or during
competition.
Key words: Competition, heart rate, laboratory, performance, running, training. |
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