Physiological determinants of race walking performance in female race walkers

T. Yoshida, M. Udo, K. Iwai, I. Muraoka, K. Tamaki, T. Yamaguchi, M. Chida

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The purpose of this study was to determine the relationship between race pace on a 5 km walking performance and velocity at the lactate threshold (V-LT), V̇O2 at the lactate threshold (V̇O2-LT), velocity at which blood lactate corresponded to 4 mM level (V-OBLA), V̇O2 at which blood lactate corresponded to 4 mM level (V̇O2-OBLA), walking economy (steady state V̇O2 at a standard velocity) and maximal oxygen uptake (V̇O2max) in eight female race walkers. A multiple stepwise linear regression analysis was employed to predict the race pace on a 5 km walking performance as dependent variable. Since V-OBLA was highly correlated to 5 km race walking performance (r = 0.94, P < 0.001), it was selected as the first predictor. When V̇O2max was added to V-OBLA as the second predictor the predictive accuracy increased significantly, but multiple R did not increase significantly by adding variables of walking economy or other parameters as independent variance. As a result, the combination of V-OBLA and V̇O2max as independent variables accounted for the greatest amount of total variance (97 per cent). It is suggested that blood lactate variable such as V-OBLA can account for a large portion of the variance in race pace on a 5 km walking performance.

Original languageEnglish
Pages (from-to)250-254
Number of pages5
JournalBritish journal of sports medicine
Volume23
Issue number4
DOIs
Publication statusPublished - 1989 Dec

Keywords

  • Lactate threshold
  • onset of blood lactate accumulation
  • race walking performance

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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