We would like to acknowledge the assistance of Dr. W. V. Younger and Mr. K. J. Box in the assessment of physical fitness levels.
Physical Fitness, Exercise, and Human Sleep
Article first published online: 30 JAN 2007
Volume 15, Issue 5, pages 447–450, September 1978
How to Cite
Griffin, S. J. and Trinder, J. (1978), Physical Fitness, Exercise, and Human Sleep. Psychophysiology, 15: 447–450. doi: 10.1111/j.1469-8986.1978.tb01413.x
- Issue published online: 30 JAN 2007
- Article first published online: 30 JAN 2007
- (Manuscript received July 11, 1977; revision received and accepted for publication January 12, 1978)
- Slow wave sleep;
- Physical fitness
Restorative theories of SWS predict a positive relationship between SWS and daytime exercise. However the relevant data appear contradictory. It was hypothesized that the discrepancy in the literature was due to the varying physical fitness levels of subjects used in these studies. The hypothesis was tested, using human subjects, by varying amount of exercise and level of fitness in a 2x2 design. Two effects were observed, both supporting the hypothesis. First, fit subjects had higher levels of SWS than unfit subjects. Second, following exercise, the level of SWS increased in fit, but remained unchanged in unfit subjects.