When insulin goes up after eating carbs, it lines up with bigger blood flow to muscles, looser blood vessels, and more nerve signals telling vessels to tighten—suggesting insulin might be linked to all these changes happening together.
Scientific Claim
In healthy adults, a rise in serum insulin following carbohydrate ingestion is associated with changes in skeletal muscle blood flow, vascular resistance, and sympathetic nerve activity, with significant correlations reported between insulin levels and these vascular and neural responses.
Original Statement
“There was a significant correlation between the increase in insulin and the changes in blood flow, vascular resistance and sympathetic activity.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design cannot support claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The abstract correctly uses 'correlation' and does not imply causation. The verb strength 'association' is appropriate and matches the observational design.
Evidence from Studies
Supporting (1)
When people eat carbs, their body releases insulin, and this study shows that insulin makes blood vessels in the muscles open up more, increases nerve signals that control blood pressure, and still lets more blood flow through—despite those nerve signals usually making vessels tighten.