The relationship between 3 km running performance and selected physiological variables
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CONTRIBUTORS:
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JOURNAL:
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YEAR:
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1997
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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MAN; ELITE-ATHLETE; OXYGEN-CONSUMPTION; LACTATE; LONG-DISTANCE-RUNNING; MIDDLE-DISTANCE-RUNNING
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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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103-366-548
(Last edited on
2002/02/27 18:44:59 US/Mountain)
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SPONSOR(S):
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ABSTRACT:
The aim of this study was to assess the relationship between a number of physiological variables and running velocity at 3 km (upsilon-3km) in a group of male runners. Sixteen well-trained middle- and long-distance runners (mean plus/minus s: age 22.4 plus/minus 4.2 years, body mass 63.5 plus/minus 6.2 kg, VO2 max 73.3 plus/minus 6.7 ml kg-1 min-1) underwent laboratory treadmill tests to determine their maximum oxygen uptake (VO2 max), running economy at three submaximal velocities (12.9, 14.5 and 16.1 km h-1 or 14.5, 16.1 16.1 and 17 km h-1), predicted velocity at VO2 max (upsilon-VO2max), velocity (upsilon-Tlac) and VO2 (VO2-Tlac) at the lactate threshold and their velocity (upsilon-4mM) and VO2 (VO2-4mM) at a blood lactate concentration of 4 mM. Distance running performance was determined by 3 km time-trials on an indoor 200 m track for which the average time was 9.46 plus/minus 0.74 min. The mean (plus/minus s) velocities for upsilon-Tlac, upsilon-4mM and upsilon-VO2max were 16.0 plus/minu 1.8, 17.1 plus/minus 1.9 and 20.7 plus/minus 2.1 km h-1 respectively, all significantly different on average from that for upsilon-3km (19.1 plus/minus 1.5 km h-1). Many of these physiological variables were found to be individually (and significantly at 5 percent) related to upsilon-3km. The best single predictors of upsilon-3km were upsilon-Tlac and upsilon-4mM (both with a sample correlation, r, of 0.93), while upsilon-VO2max was slightly poorer (r=0.86). Neither VO2 max nor running economy was strongly correlated with upsilon-3km. A stepwise multiple-regression analysis revealed that upsilon-Tlac alone was the best single predictor of upsilon-3km and explained 87 percent of the variability in 3 km running velocity, while the addition of any of the other physiological variables did not significantly improve the prediction of upsilon-3km. We conclude that, in a group of well-trained runners, the running velocity at the lactate threshold was all that was requried to explain a large part of the variability in 3 km running performance.
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