Effects on brain structural and functional in deaf children after aerobic exercise training: a pilot cluster...

Area of Science:

• Neuroscience
• Exercise Physiology
• Developmental Psychology

Background:

• Deaf children often face challenges in cognitive functions, including working memory.
• The impact of aerobic exercise on brain structure and function in deaf children remains underexplored.
• Understanding these effects is crucial for developing targeted interventions.

Purpose of the Study:

• To investigate the effects of an 11-week aerobic exercise intervention on brain structure and working memory function in deaf children.
• To utilize structural Magnetic Resonance Imaging (MRI) and functional MRI (fMRI) to assess changes.
• To compare outcomes between an intervention group and a control group.

Main Methods:

• A cluster randomized controlled trial involving 24 deaf children (12 intervention, 12 control).
• The intervention group engaged in aerobic exercise for 11 weeks; the control group maintained daily activities.
• Surface-based morphometry (SBM) and functional activation analysis using fMRI were performed at baseline and post-intervention.

Main Results:

• No significant changes in brain structure were observed after the 11-week intervention.
• Significant improvements in behavioral performance, including reduced reaction time and increased accuracy during working memory tasks, were noted in the intervention group.
• Enhanced brain activation in the left supplementary motor cortex and left paracentral lobule was observed in the intervention group compared to controls.

Conclusions:

• Aerobic exercise interventions of 11 weeks do not appear to modulate brain structure in deaf children.
• However, such interventions can positively impact behavioral performance and functional brain activation during working memory tasks.
• These findings suggest that aerobic exercise is a promising non-pharmacological approach to enhance cognitive function in deaf children.