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Sleep Architecture, Muscle Function, and Daily Life Activities in Patients with Sarcopenia.
Eduardo López-Ramírez1,2, Gabriela Millán-Rosas1, Rafael Santana-Miranda1
1Clinic of Sleep Disorders, Faculty of Medicine, Universidad Nacional de México (UNAM), Ciudad de México, Mexico.
Sleep Science (Sao Paulo, Brazil)
|September 26, 2025
Summary
Sarcopenia patients show links between sleep patterns, muscle strength, and daily activity. Grip strength is associated with total sleep time and daily life activity index in older adults with sarcopenia.
Area of Science:
- Gerontology
- Sleep Medicine
- Muscle Physiology
Background:
- Sarcopenia, characterized by muscle mass and strength loss, affects older adults.
- Sleep disturbances are common in aging populations and may influence muscle health.
- The relationship between sleep architecture, muscle function, and daily activity in sarcopenia requires further investigation.
Purpose of the Study:
- To investigate associations between polysomnography (sleep study) metrics, muscle mass and strength, and the daily life activity index (DLAI) in patients with sarcopenia.
- To compare sleep parameters between sarcopenic individuals and healthy controls.
Main Methods:
- Polysomnography, muscle mass and strength assessments, and DLAI were measured in 16 patients with sarcopenia and 26 controls (age >60).
- Statistical analyses compared variables and correlations within the sarcopenia group.
Main Results:
- No significant differences in polysomnography findings were observed between sarcopenia patients and controls.
- In sarcopenia patients, REM sleep latency correlated positively with weight and REM percentage.
- Total sleep time positively correlated with grip strength, while apnea index negatively correlated with grip strength. DLAI positively correlated with grip strength.
Conclusions:
- Sarcopenia is associated with specific sleep alterations, including REM sleep latency and total sleep time.
- Grip strength, a key indicator of muscle function, is linked to sleep quality and daily physical activity in sarcopenic individuals.
- These findings highlight a complex interplay between sleep, muscle function, and daily activity in sarcopenia, warranting further research.
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