Large muscle group movements during sleep in healthy people: normative values and correlation to sleep features.
Sleep
; 46(8)2023 08 14.
Article
in En
| MEDLINE
| ID: mdl-37129552
ABSTRACT
STUDY OBJECTIVES:
To investigate the frequency and characteristics of large muscle group movements (LMMs) during sleep in healthy adults.METHODS:
LMMs were scored following the International Restless Legs Syndrome Study Group criteria in 100 healthy participants aged 19-77 years. A LMM was defined as a temporally overlapping increase in EMG activity and/or the occurrence of movement artifacts in at least two channels. LMM indices and durations in total sleep time (TST), NREM and REM sleep, and association with arousals, awakenings, and/or respiratory events were calculated. Correlations of LMMs indices and durations with sleep architecture, respiratory and motor events, and subjective sleep quality were investigated.RESULTS:
Median LMMs index in TST was 6.8/h (interquartile range (IQR), 4.5-10.8/h), median mean duration 12.4 s (IQR 10.7-14.4 s). Mean LMMs duration was longer in NREM (median 12.7 s, IQR 11.1-15.2 s) versus REM sleep (median 10.3 s, IQR 8.0-13.5s), pâ <â 0.001. LMMs associated with awakening increased with age (pâ =â 0.029). LMMs indices in TST were higher in men than women (pâ =â 0.018). LMMs indices correlated positively with N1 sleep percentage (ρâ =â 0.49, pâ <â 0.001), arousal index (ρâ =â 0.40, pâ =â 0.002), sleep stages shift index (ρâ =â 0.43, pâ <â 0.001, apnea index (ρâ =â 0.36, pâ =â 0.017), and video-visible movements indices (ρâ =â 0.45, pâ <â 0.001), and negatively with N3 sleep (ρâ =â -0.38, p=â 0.004) percentage.CONCLUSIONS:
This is the first study providing normative data on LMMs frequency in healthy adults. LMMs are a ubiquitous phenomenon often associated with other events. Correlation with arousals and respiratory events suggests a potential clinical significance of LMMs in adults that awaits further investigation.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sleep, Slow-Wave
/
Movement
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
En
Journal:
Sleep
Year:
2023
Document type:
Article
Affiliation country:
Austria