Physical Training Augments Plasma Catecholamines and Natural Killer Cell Activity
| Autor: | Kazuo Takahara, Tomiya Yasumasu, Tadashi Nakamura, Yasuhide Nakashima, Yasushi Miura, Ryouji Kouzuma |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Adult
medicine.medical_specialty Epinephrine Physical fitness Biology Natural killer cell Norepinephrine (medication) Norepinephrine Oxygen Consumption Internal medicine Statistical significance medicine Humans Exercise physiology Treadmill Exercise business.industry Public Health Environmental and Occupational Health General Medicine Killer Cells Natural medicine.anatomical_structure Endocrinology Physical Fitness Catecholamine Female business medicine.drug |
| Zdroj: | Journal of UOEH. 21:277-287 |
| ISSN: | 2187-2864 0387-821X |
| DOI: | 10.7888/juoeh.21.277 |
| Popis: | To elucidate the effects of a 10-week exercise training period on physical fitness and plasma catecholamine concentration at rest, and on natural killer cell activity in young healthy untrained females, subjects (20-22 years old. N = 16) carried out physical training by a protocol which consisted of treadmill jogging at a work-intensity of 50% of their VO2max, two hours a day three times a week for ten weeks. VO2max was increased significantly from 33.1 +/- 3.4 ml/kg/min to 38.3 +/- 6.6 ml/kg/min by the ten weeks of physical training (P < 0.005), and natural killer cell activity was also increased significantly from 31.9 +/- 14.3% to 46.4 +/- 18.4% (P < 0.05). The concentrations of epinephrine and norepinephrine before and after physical training were 18.3 +/- 8.7 pg/ml and 20.4 +/- 8.9 pg/ml, and 134.1 +/- 52.2 pg/ml and 248.1 +/- 106.8 pg/ml (P < 0.005), respectively. Changes in norepinephrine and epinephrine correlated with the change in VO2max (r = 0.780, P < 0.005; r = 0.556, P < 0.05). While the change in natural killer cell activity correlated with the change in epinephrine (r = 0.623, P < 0.01), the correlation of the change in natural killer cell activity with change in norepinephrine did not reach statistical significance (r = 0.497, P = 0.0503). From these results we concluded that physical training augments plasma catecholamine levels and natural killer cell activity at rest in young healthy females. |
| Databáze: | OpenAIRE |
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