[Mobilization of Leukocytes During Submaximal Dynamic Exercise]
(1991) Archives Internationales de Physiologie et de Biochimie — Vol. 99, n° 6, p. 419-423 (1991)
Files
No attached file found for this publication.
Details
- Authors
- Abstract
- Increase of blood leucocytes induced by a dynamic exercise has been studied in 10 adult male subjects (age : 22 +/- 2 years; body weight 73 +/- 10 kg; VO2max : 54 +/- 8 ml O2/kg.min. The exercise consisted of a 20 minutes test on a cycle ergometer at a work rate eliciting a total energy expenditure roughly equal to 80% of the maximal aerobic power (80% VO2max). During exercise the absolute number of circulating leucocytes (n Leu) increased significantly toward a maximal value reached in most cases at the end of exercise. The maximal values of n Leu - expressed as percentage of n Leu measured at rest - in the different blood leucocyte types (monocytes: n Mono; granulocytes: n GR; natural killer cells: n NK) and lymphocyte subsets (lymphocytes: n LY; lymphocytes T: n T; lymphocytes B: n B; lymphocytes T helper: n T4; lymphocytes T suppressor: n T8) - were as follows: n Mono: 240%; n GR: 170%; n NK: 490%; n LY: 220%; n T: 200%; n B: 190%; n T4: 140%; n T8: 190%. With the exception of n GR, n Leu decreased during recovery at a rate depending on the leucocyte type. The n T4/n T8 ratio, equal to 1 at rest, was reduced by about 40% during exercise. This ratio rose after exercise and reached a value equal to that measured at rest after 20 minutes recovery. In agreement with FERRY (1989), we concluded that exercise is accompanied by a selective mobilization of the different leucocyte types. The magnitude of this phenomenon and the kinetics of n Leu recuperation depend on cell types.
- Affiliations
Citations
Camus, G., Sondag, D., Magginpint, J., Pincemail, J., Plumier, AF., Feron, F., Juchmesferir, A., Duchateau, J., Lamy, M., Debydupont, G., & Deby, C. (1991). [Mobilization of Leukocytes During Submaximal Dynamic Exercise]. Archives Internationales de Physiologie et de Biochimie, 99(6), 419-423. https://hdl.handle.net/2078.5/85766 (Original work published 1991)