NDLI: Venous blood lactate increase after vertical jumping in volleyball athletes

Content Provider	Springer Nature Link
Author	Chamari, K. Ahmaidi, S. Blum, J. Hue, O. Temfemo, A. Hertogh, C. Mercier, B. Préfaut, C. Mercier, J.
Copyright Year	2001
Abstract	The aim of this study was to test the hypothesis that venous blood lactate concentrations ([La–]) would vary from the beginning of brief exercise. Maximal vertical jumping was used as a model of brief intense exercise. Eleven healthy male volleyball players, aged [mean (SE)] 18.5 (0.7) years, performed three exercise tests with different protocols, each separated by quiet seated recovery periods of 45 min. After the first test, consisting of a single maximal jump [lasting ≅0.6 s for the pushing phase, and in which the subjects jumped 64 (2.2) cm], forearm venous [La–] increased significantly with respect to rest at 1 min (t 1), 3 min (t 3), and 5 min (t 5) of recovery. The second test, comprising six maximal jumps, each separated by 20-s recovery periods, resulted in an unchanged [La–] with respect to the baseline value. After the third test [i.e., six consecutive maximal jumps that lasted a total of 7.36 (0.33) s], [La–] increased significantly at t 3 and t 5 with respect to the pre-test value (F=10.3, P<0.001). We conclude that a significant venous [La–] increase occurs after vertical jumping. This result may be explained by the activation of lactic anaerobic metabolism at the very onset of exercise, which participates in energy production and/or in the resynthesis of the phosphocreatine that was used during such brief exercise.
Starting Page	191
Ending Page	194
Page Count	4
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	85
Issue Number	1
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-05-05
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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