Effects of Aerobic Physical Exercise Performed Under Hypoxic Conditions on Melatonin

Melatonin is a hormone which controls sleep, inflammation, and oxidative stress. Aerobic physical exercise can influence melatonin in normoxia. However, there is controversy about the effects of exercise on the melatonin level in hypoxia, which is characterized by impaired sleep. PURPOSE: This work evaluated the effects of aerobic physical exercise on melatonin under hypoxic conditions. METHODS: Forty healthy men were randomized into 4 groups:...