The 24-h movement behaviours composition is associated with parasympathetic modulation in preschoolers.
Child Care Health Dev
; 50(3): e13263, 2024 May.
Article
in En
| MEDLINE
| ID: mdl-38722050
ABSTRACT
AIM:
To investigate the associations between 24-h movement behaviours and heart rate variability (HRV) in preschool children.METHODS:
A total of 123 preschoolers (4.52 ± 0.25 years old; 62 girls) were assessed for physical activity (PA) and sedentary behaviour (SB) using an accelerometer (Actigraph WGT3x). Sleep duration (SD) was parent-reported. Children were laid down in a supine position for 10 min to assess HRV data. The R-R intervals recorded during the last 5 min of this period were analysed. We conducted compositional analysis in R studio, and the significance level was 95%. All ethical procedures were followed, and the study had the approval of the local ethical board.RESULTS:
When considered as a composition, adjusted for age, body mass index and sex, the 24-h movement composition (PA, SB and SD) significantly predicted better parasympathetic modulation (Root mean square of the successive differences [RMSSD] [p = 0.04; r2 = 0.13]), but not high frequency (HF) (nu) (p = 0.51, r2 = 0.01), low frequency (nu) (p = 0.52, r2 = 0.02),or standard deviation (standard deviation of normal-to-normal intervals) (p = 0.55, r2 = 0.02), respectively.CONCLUSION:
These results suggest the 24-h movement composition predicted the RMSSD time-domain index related to parasympathetic activity.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Parasympathetic Nervous System
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Exercise
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Sedentary Behavior
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Accelerometry
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Heart Rate
Limits:
Child, preschool
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Female
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Humans
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Male
Language:
En
Journal:
Child Care Health Dev
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Child care health dev
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Child care, health and development
Year:
2024
Type:
Article
Affiliation country:
Brazil