Key result
Moderate exercise induced postexercise hypotension (MBP -9 mmHg) and significantly reduced regional cerebral blood flow in the insular and anterior cingulate cortices (P<0.05).
Why the study?
Does moderate exercise alter regional cerebral blood flow during postexercise hypotension compared to rest or light exercise in humans?
Population
8 human subjects
Comparison
30 min of moderate exercise at 60-70% heart rate… vs 30 min of rest and 30 min of light exercise at…
Design
RCT, randomly assigned conditions
Follow-up
during exercise recovery
Authors
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Postexercise hypotension after moderate exercise may reduce cerebral perfusion in regulatory areas; extends central mechanisms of cardiovascular recovery.
RCT (n=8)
Randomly assigned conditions
Does moderate exercise alter regional cerebral blood flow during postexercise hypotension compared to rest or light exercise in humans?
p-value: p=<0.05
Moderate exercise leading to postexercise hypotension is associated with regional cerebral blood flow reductions in the insular and anterior cingulate cortices, suggesting their involvement in cardiovascular regulation.
Williamson et al. (2004) conducted an RCT in Postexercise hypotension (n=8). Moderate exercise (M-Ex) at 60-70% heart rate reserve vs. 30 min of rest and 30 min of light exercise (L-Ex) at 20% heart rate reserve was evaluated on Regional cerebral blood flow (rCBF) and mean blood pressure (MBP) (p=<0.05). Moderate exercise induced postexercise hypotension (MBP -9 mmHg) and significantly reduced regional cerebral blood flow in the insular and anterior cingulate cortices (P<0.05).
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