Circadian phase-shifting effects of nocturnal exercise in older compared with young adults.

  title={Circadian phase-shifting effects of nocturnal exercise in older compared with young adults.},
  author={Erin K. Baehr and Charmane I Eastman and William Revelle and Susan H Losee Olson and Lisa F. Wolfe and Phyllis C Zee},
  journal={American journal of physiology. Regulatory, integrative and comparative physiology},
  volume={284 6},
Exercise can phase shift the circadian rhythms of young adults if performed at the right time of day. Similar research has not been done in older adults. This study examined the circadian phase-delaying effects of a single 3-h bout of low-intensity nocturnal exercise in older (n = 8; 55-73 yr old) vs. young (n = 8; 20-32 yr old) adults. The exercise occurred at the beginning of each subject's habitual sleep time, and subjects sat in a chair in dim light during the corresponding time in the… CONTINUE READING

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