Effects of High Intensity Cycle Exercise on Sympatho-Adrenal-Medullary Response Patterns.

摘要

Plasma proenkephalin Peptide F immunoreactivity (ir) and catecholamines were examined before and after maximal exercise to exhaustion at four intensities 36, 55, 73 and 100% maximal leg power (MLP) by means of a high resistance cycle ergometer. All intensities were greater than those eliciting peak O2 uptake for the individual subjects. Blood samples were obtained immediately after exercise and at 5 and 15 main post-exercise. Data suggest that exercise-induced increases may be the result of non-colinear storage and release mechanisms in the adrenal medulla. Keywords: Proenkephalins; Opioid peptides; Epinephrine; Norepinephrine; Anaerobic exercise; Skeletal muscle morphology. (EMK)