Main Article Content
Polysomnography, Actigraphy, Measurement
Introduction: There is evidence to suggest that one’s diet may affect sleep quality and/or quantity. The purpose of this investigation was to determine if a high-protein diet (>2.2g/kg/d) affected parameters of sleep in exercise-trained men and women. Methods: Eighteen trained individuals participated in this 14-day randomized crossover investigation (mean±SD: age: 32±8 years; height: 162.9±29.0 centimeters; body weight: 65.6±6.0 kilograms; body fat percentage: 17.8±6.7 %). Subjects consumed a high-protein (>2.2 g/kg/d) and a lower protein diet (<2.2 g/kg/d) for 7 days in a randomized order.Total sleep time and quality was calculated throught the use of Actiwatch wrist monitors and Actiware software (Phillips Respironics). Body composition was assessed via the Bod Pod®
Results: There was a significantly higher intake of protein and calories during the high-protein phase of the study; however, there were no significant differences vis a vis the other dietary measures. There was no effect of protein intake on any measures of sleep.
Conclusions: The consumption of a high protein diet had no effect on sleep quality or duration.
2. Tanaka, E., et al., Associations of protein, fat, and carbohydrate intakes with insomnia symptoms among middle-aged Japanese workers. J Epidemiol, 2013. 23(2): p. 132-8.
3. Zhou, J., et al., Higher-protein diets improve indexes of sleep in energy-restricted overweight and obese adults: results from 2 randomized controlled trials. Am J Clin Nutr, 2016. 103(3): p. 766-74.
4. James, B.D., et al., Total daily activity measured with actigraphy and motor function in community-dwelling older persons with and without dementia. Alzheimer Dis Assoc Disord, 2012. 26(3): p. 238-45.
5. Lee, A. and J.C. Galvez, Jet lag in athletes. Sports Health, 2012. 4(3): p. 211-6.
6. Bray, G.A., et al., Effect of dietary protein content on weight gain, energy expenditure, and body composition
during overeating: a randomized controlled trial. JAMA, 2012. 307(1): p. 47-55.
7. Lindseth, G., P. Lindseth, and M. Thompson, Nutritional effects on sleep. West J Nurs Res, 2013.
35(4): p. 497-513.
8. Foundation, N.S. Sleep and Recovery. 2018; Available from: www.nationalsleepfoundation.org.
9. Leeder, J., et al., Sleep duration and quality in elite athletes measured using wristwatch actigraphy. J Sports
Sci, 2012. 30(6): p. 541-5.
10. Gupta, L., Morgan, K., & Gilchrist, S., Does Elite Sport Degrade Sleep Quality? A Systematic Review.
Sports Med, 2017. 47(7): p. 1317-1333.