“In the space of just five minutes a day – about the time it takes to take 30 deep breaths – a simple breathing exercise can lower blood pressure, boost vascular health, and could sharply reduce your chances of developing serious cardiovascular disease.
It’s called Inspiratory Muscle Strength Training (IMST), a form of physical training specifically designed to exercise the diaphragm and other breathing muscles, using a handheld device that provides resistance when you inhale through it (kind-of like an asthma puffer that works against you).
IMST was first pioneered decades ago as a way to help critically ill respiratory disease patients strengthen their independent breathing functions, using only mild or moderate resistance in the device.”
“After six weeks, the treatment group using high-resistance IMST saw significant drops in systolic blood pressure (SBP), greater than or equal to what can result from implementing other healthy lifestyle strategies, including aerobic exercise and some blood pressure-lowering medications.
“This improvement in SBP is clinically meaningful because it is associated with a 30 percent to 40 percent lower risk of death from cardiovascular disease,” the researchers explain in their study, noting that the effects lasted for many weeks even after the experiment finished.
“The reduction in casual SBP was largely sustained after six weeks of abstaining from IMST, with about 75 percent of the initial reduction preserved.”
In addition, the IMST group also saw significant improvements in vascular endothelial function, suggesting their artery health had improved (although arterial stiffness was unchanged in such a short experiment), while markers of systemic inflammation were lowered.”
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The device used was a POWERbreathe K3.
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https://www.sciencealert.com/this-5-minute-breathing-exercise-lowers-blood-pressure-as-much-as-drugs-or-exercise
https://www.ahajournals.org/doi/10.1161/JAHA.121.020980
https://www.powerbreathe.com/product/powerbreathe-k-series/