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Lack of perceived sleep improvement after 4-month structured exercise programs.
Steriani Elavsky1, Edward McAuley
1Department of Kinesiology, Pennsylvania State University, University Park, PA 16802, USA. sxe16@psu.edu
Menopause (New York, N.Y.)
|January 17, 2007
Summary
Moderate-intensity walking and low-intensity yoga did not significantly improve sleep quality in middle-aged women during menopause. Longer or more intense exercise may be necessary for better sleep outcomes.
Area of Science:
- Exercise Science
- Sleep Medicine
- Women's Health
Background:
- Menopausal transition often leads to reduced sleep quality in middle-aged women.
- Physical activity is a potential intervention for sleep improvement.
- Limited randomized controlled trials exist for exercise and sleep in this demographic.
Purpose of the Study:
- To investigate the effects of structured exercise (walking and yoga) on perceived sleep quality in low-active, middle-aged women.
- To assess changes in sleep quality over a 4-month period.
- To explore the relationship between exercise, menopausal symptoms, depression, and sleep quality.
Main Methods:
- A 4-month randomized controlled trial involving 164 low-active women (mean age 49.9).
- Three arms: moderate-intensity walking, low-intensity yoga, and a control group.
- Assessments included body composition, fitness, and the Pittsburgh Sleep Quality Index (PSQI).
Main Results:
- No statistically significant improvements in total sleep quality or individual domains were observed for walking or yoga groups.
- Effect sizes suggested small improvements in some sleep domains for the walking group.
- Menopausal symptoms, but not depression or physical activity, uniquely predicted changes in total sleep quality.
Conclusions:
- Four-month moderate-intensity walking and low-intensity yoga programs were insufficient to significantly improve sleep quality.
- Longer duration or higher intensity exercise interventions may be required for noticeable sleep benefits.
- Menopausal symptoms are a significant factor influencing sleep quality changes during this transition.
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