Key result
Whole body passive hot water immersion elicited comparable postintervention changes in cerebral and femoral artery shear rates to high-intensity exercise.
Why the study?
The study aimed to compare shear rates in lower limb and extracranial cerebral blood vessels after high-intensity exercise versus whole body passive hot water immersion.
Does passive hot water immersion cause similar postintervention changes in peripheral and cerebral shear rates compared to high-intensity exercise?
Does passive hot water immersion cause similar postintervention changes in peripheral and cerebral shear rates compared to high-intensity exercise?
Passive hot water immersion provides comparable postintervention changes in lower limb peripheral shear rates to intense exercise, suggesting it as a potential therapeutic alternative for individuals unable to exercise.
PHWI may mimic exercise femoral shear acutely; leaves open clinical vascular applications pending patient trials.
The study aimed to compare shear rates in lower limb and extracranial cerebral blood vessels for up to 80 min after high-intensity exercise and whole body passive hot water immersion (PHWI). Time- and core temperature-matched high-intensity exercise and whole body PHWI both elicited minimal, but comparable, postintervention changes in cerebral artery shear rate. Furthermore, 30 min of PHWI caused a postintervention increase in femoral shear rate similar to high-intensity exercise; however, femoral shear remained slightly elevated for a longer period after high-intensity exercise. These results suggest that PHWI provides postintervention changes in lower limb peripheral shear rates comparable to intense exercise and is likely a therapeutic alternative in individuals unable to perform exercise.
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Amin et al. (2022) studied this question. Whole body passive hot water immersion (PHWI) vs. Time- and core temperature-matched high-intensity exercise was evaluated on Shear rates in lower limb and extracranial cerebral blood vessels. Whole body passive hot water immersion elicited comparable postintervention changes in cerebral and femoral artery shear rates to high-intensity exercise.
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