1. Changes in plasma concentrations of catecholamines and Cortisol were measured before and after static exercise performed by the subject pushing with both legs against a strain-gauge bar. No marked changes in plasma catecholamine were observed but plasma Cortisol increased after the subject pushed for 3 min at 50% of maximum force.

2. Holding a 20 kg weight for 5 min in one hand caused a rise in plasma Cortisol and in plasma ACTH but no changes in growth hormone were observed.

Keywords:
adrenocortocotrophic hormone, catecholamine, Cortisol, growth hormone, isometric exercise
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© 1975 The Biochemical Society and the Medical Research Society
1975
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