Body movements during night sleep in healthy elderly subjects and their relationships with sleep stages
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Updated: Aug 23, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
Sara Gori1, Gianluca Ficca, Fiorenza Giganti
1Institute of Neurology, Department of Neurosciences, University of Pisa, Via Roma 67, Pisa 56126, Italy. sara-gori@libero.it
Insights
Elderly individuals exhibit fewer body movements during sleep compared to young adults. These movements in older adults are not linked to specific sleep stages and often precede awakenings, indicating potential age-related changes in sleep regulation.
Area of Science:
- Gerontology
- Sleep Medicine
- Neuroscience
Background:
- Understanding age-related changes in sleep is crucial for maintaining health in older adults.
- Previous research indicates a reduction in body movements from infancy to adulthood.
Purpose of the Study:
- To investigate the characteristics of body movements during sleep in the elderly.
- To compare sleep movement patterns between elderly and young individuals.
Main Methods:
- Polygraphic polysomnography was used to monitor the sleep of twelve elderly subjects.
- Seven healthy young subjects served as a control group for comparison.
Main Results:
- Elderly subjects showed significantly fewer body movements during sleep than young subjects.
- Body movements in the elderly were not associated with specific sleep stages (e.g., REM sleep).
- Body movements in the elderly were more frequently followed by sleep stage changes or awakenings.
Conclusions:
- Sleep in old age is characterized by a reduction in body movements, continuing a trend from earlier life stages.
- Age-related modifications in motor control and subcortical circuits may influence sleep movements.
- Elderly individuals may have a reduced ability to maintain stable sleep states, with movements potentially triggering state shifts.
Abstract:
In order to enlighten the profile of body movements during sleep at old age, the night sleep of twelve elderly subjects was polygraphically investigated; seven young healthy subjects were the control group. Significantly less body movements during sleep were found in the elderly compared to young subjects, meaning that the decrease in the number of body movements observed from infancy to childhood up to adulthood also continues at later ages. Differently from young adult, whose sleep body movements mainly occur in stage REM, no specific sleep state and/or stage was preferentially associated with the occurrence of body movements in the elderly. These data may point to an age-related modification in the interaction between motor cortex control and subcortical circuits. Furthermore, when body movements occur in elderly individuals, they are significantly more often followed in the next 60 s by a sleep stage change or by a spontaneous behavioural awakening. This might reflect a peculiar inability of elderly subjects to sustain stable states, and could also suggest that body movements may act as a co-factor in a process, comprising other physiological changes, leading to state shifts.
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