| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Department of Physiology, Hokkaido University Graduate School of Medicine, Sapporo 060 Japan
Effects of forced sleep-wake schedules with and without physical exercise were examined on the human circadian pacemaker under dim light conditions. Subjects spent 15 days in an isolation facility separately without knowing the time of day and followed a forced sleep-wake schedule of a 23 h 40-min period for 12 cycles, and physical exercise was imposed twice per waking period for 2 h each with bicycle- or rowing-type ergometers. As a result, plasma melatonin rhythm was significantly phase advanced with physical exercise, whereas it was not changed without exercise. The difference in phase was already significant 6 days after the start of exercise. The amplitude of melatonin rhythm was not affected. A single pulse of physical exercise in the afternoon or at midnight significantly phase delayed the melatonin rhythms when compared with the prepulse phase, but the amount of phase shift was not different from that observed in the sedentary controls. These findings indicate that physical exercise accelerates phase-advance shifts of the human circadian pacemaker associated with the forced sleep-wake schedule.
melatonin; rectal temperature; entrainment
This article has been cited by other articles:
|
|
 |
|
  D. Martarelli, M. Cocchioni, S. Scuri, and P. Pompei Diaphragmatic Breathing Reduces Exercise-induced Oxidative Stress Evid. Based Complement. Altern. Med., October 29, 2009; (2009) nep169v1. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Y. Yamanaka, S. Honma, and K.-i. Honma Scheduled exposures to a novel environment with a running-wheel differentially accelerate re-entrainment of mice peripheral clocks to new light-dark cycles. Genes Cells, May 1, 2008; 13(5): 497 - 507. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Goel An arousing, musically enhanced bird song stimulus mediates circadian rhythm phase advances in dim light Am J Physiol Regulatory Integrative Comp Physiol, September 1, 2006; 291(3): R822 - R827. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Takimoto, A. Hamada, A. Tomoda, S. Ohdo, T. Ohmura, H. Sakato, J. Kawatani, T. Jodoi, H. Nakagawa, H. Terazono, et al. Daily expression of clock genes in whole blood cells in healthy subjects and a patient with circadian rhythm sleep disorder Am J Physiol Regulatory Integrative Comp Physiol, November 1, 2005; 289(5): R1273 - R1279. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. E. Mistlberger and D. J. Skene Nonphotic Entrainment in Humans? J Biol Rhythms, August 1, 2005; 20(4): 339 - 352. [Abstract] [PDF]
|
|
|
|
|
|
N. Goel Late-night presentation of an auditory stimulus phase delays human circadian rhythms Am J Physiol Regulatory Integrative Comp Physiol, July 1, 2005; 289(1): R209 - R216. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. K. Barger, K. P. Wright Jr., R. J. Hughes, and C. A. Czeisler Daily exercise facilitates phase delays of circadian melatonin rhythm in very dim light Am J Physiol Regulatory Integrative Comp Physiol, June 1, 2004; 286(6): R1077 - R1084. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K.-i. Honma, S. Hashimoto, M. Nakao, and S. Honma Period and Phase Adjustments of Human Circadian Rhythms in the Real World J Biol Rhythms, June 1, 2003; 18(3): 261 - 270. [Abstract] [PDF]
|
|
|
|
|
|
E. K. Baehr, C. I. Eastman, W. Revelle, S. H. L. Olson, L. F. Wolfe, and P. C. Zee Circadian phase-shifting effects of nocturnal exercise in older compared with young adults Am J Physiol Regulatory Integrative Comp Physiol, June 1, 2003; 284(6): R1542 - R1550. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
O. M. Buxton, C. W. Lee, M. L'Hermite-Baleriaux, F. W. Turek, and E. Van Cauter Exercise elicits phase shifts and acute alterations of melatonin that vary with circadian phase Am J Physiol Regulatory Integrative Comp Physiol, March 1, 2003; 284(3): R714 - R724. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Schnermann Exercise Am J Physiol Regulatory Integrative Comp Physiol, July 1, 2002; 283(1): R2 - R6. [Full Text] [PDF]
|
|
|
|
 |
|
 K. P. Wright Jr., R. J Hughes, R. E. Kronauer, D.-J. Dijk, and C. A. Czeisler Intrinsic near-24-h pacemaker period determines limits of circadian entrainment to a weak synchronizer in humans PNAS, November 20, 2001; 98(24): 14027 - 14032. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. D. Youngstedt, D. F. Kripke, and J. A. Elliott Circadian phase-delaying effects of bright light alone and combined with exercise in humans Am J Physiol Regulatory Integrative Comp Physiol, January 1, 2002; 282(1): R259 - R266. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
