Key result
During incremental exercise, children exhibited a smaller relative increase in middle cerebral artery blood velocity (1-12%) compared with adults (12-25%).
Why the study?
Does the cerebrovascular response to acute exercise differ between children and adults?
Population
13 children (age: 9 ± 1 yr) and 13 sex-matched adults (age: 25 ± 4 yr)
Comparison
Maximal exercise test vs Adults (age 25 ± 4 yr)
Design
Cross-sectional
Authors
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Suggests age-dependent regulatory mechanisms of cerebral perfusion during exertion; leaves open whether these physiological differences impact.
Cross-Sectional (n=26)
Does the cerebrovascular response to acute exercise differ between children and adults?
p-value: p=<0.001
Exercise increases cerebral blood flow in children to a lesser extent than in adults, suggesting age-dependent regulatory mechanisms of cerebral perfusion.
Ellis et al. (2017) reported a cross-sectional. Incremental exercise in children vs. Incremental exercise in adults was evaluated on Changes in middle cerebral artery blood velocity (MCAV mean) and end-tidal Pco2 in response to incremental exercise (p=<0.001). During incremental exercise, children exhibited a smaller relative increase in middle cerebral artery blood velocity (1-12%) compared with adults (12-25%).
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