Parent-led massage and sleep EEG for term-born infants: A randomized controlled parallel-group study

Area of Science:

• Neuroscience
• Developmental Pediatrics
• Sleep Medicine

Background:

• Infant massage is a common practice with potential benefits.
• Understanding its neurological effects, particularly on sleep, is crucial for developmental insights.
• Previous research has explored behavioral outcomes, but EEG-specific changes remain less understood.

Purpose of the Study:

• To investigate the impact of routine parent-led infant massage on sleep electroencephalogram (EEG) features in typically developing infants.
• To identify specific EEG biomarkers associated with infant massage at 4 months of age.
• To correlate EEG findings with developmental assessments.

Main Methods:

• Randomized controlled trial involving infants assigned to either a routine parent-led massage group or a control group.
• Daytime sleep EEG recordings were conducted at 4 months of age.
• Quantitative EEG analysis, including sleep spindle spectral power and interhemispherical coherence, was performed. Developmental assessments using the Griffiths Scales were also conducted.

Main Results:

• Infants in the massage group exhibited significantly greater sleep spindle spectral power compared to controls.
• Higher sleep EEG magnitudes and lower interhemispherical coherence were observed in the massaged group.
• No significant differences were found in total nap duration or sleep cycle macrostructure between the groups.
• Developmental assessments at 4 and 18 months showed no group differences.

Conclusions:

• Routine parent-led infant massage is associated with distinct alterations in sleep EEG biomarkers at 4 months.
• These findings suggest that infant massage can induce functional brain changes detectable via EEG.
• While EEG biomarkers show differences, overall neurodevelopmental outcomes assessed by Griffiths Scales were not affected at these time points.