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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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LONGITUDINAL STUDY IN 3,000 M MALE RUNNERS: RELATIONSHIP BETWEEN PERFORMANCE AND SELECTED PHYSIOLOGICAL PARAMETERS |
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José A. Bragada1,2, Paulo J. Santos3, José A. Maia3, Paulo J. Colaço3, Vítor P. Lopes1,2 and Tiago M. Barbosa1,2 |
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1Polytechnic Institute of Bragança, Department of Sport Sciences, Bragança, Portugal, 2Research Centre in Sports, Health and Human Development, Vila Real, Portugal, 3CIFI2D, Sports Faculty, University of Porto, Porto, Portugal |
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© Journal of Sports Science and Medicine (2010) 9, 439 - 444 |
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| ABSTRACT | |||
| The purpose of the present study was to analyze longitudinal changes
in 3,000 m running performance and the relationship with selected physiological
parameters. Eighteen well-trained male middle-distance runners were measured
six times (x3 per year) throughout two consecutive competitive seasons.
The following parameters were measured on each occasion: maximal oxygen
uptake (VO2max), running economy (RE), velocity at maximal oxygen
uptake (vVO2max), velocity at 4mmol L-1 blood lactate
concentration (V4), and performance velocity (km·h-1) in 3,000 m time trials.
Values ranged from 19.59 to 20.16 km·h-1, running performance; 197 to 207
mL·kg-1·km-1. RE; 17.2 to 17.7 km·h-1, V4; 67.1 to 72.5 mL·kg-1·min-1,
VO2max; and 19.8 to 20.2 km·h-1, vVO2max. A hierarchical
linear model was used to quantify longitudinal relationships between running
performance and selected physiological variables. Running performance decreased
significantly over time, between each time point the decrease in running
velocity was 0.06 km·h-1. The variables that significantly explained performance
changes were V4 and vVO2max. Also, vVO2max and V4
were the measures most strongly correlated with performance and can be used
to predict 3,000 m race velocity. The best prediction formula for 3,000
m running performance was: y = 0.646 + 0.626x + 0.416z (R2=0.85); where
y = V3,000 m velocity (km·h-1), x = V4 (km·h-1) and z = vVO2max
(km·h-1). The high predictive power of vVO2max and V4 suggest
that both coaches and athletes should give attention to improving these
two physiological variables, in order to improve running performance.
Key words: Tracking; running performance; maximal oxygen uptake; blood lactate; running economy. |
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