Study: Working out for just five minutes can reduce heart attack risks
Working out for just five minutes can now reduce heart attack risks. A research has found an innovative five minutes workout that is not only time efficient but, reduces your heart attack risk, helps you think more clearly and boost your sports performance. Preliminary results from a clinical trial of Inspiratory Muscle Strength Training (IMST), were presented at the Experimental Biology conference.
"IMST is basically strength-training for the muscles you breathe in with," said Daniel Craighead, lead author of the study. Developed in the 1980s as a means to wean critically ill people off ventilators, IMST involves breathing in vigorously through a hand-held device - an inspiratory muscle trainer - which provides resistance. Imagine sucking hard through a straw which sucks back.
"It's something you can do quickly in your home or office, without having to change your clothes, and so far it looks like it is very beneficial to lower blood pressure and possibly boost cognitive and physical performance," he said. During early use in patients with lung diseases, patients performed a 30-minute, low-resistance regimen daily to boost their lung capacity.
But in 2016, University of Arizona researchers published results from a trial to see if just 30 inhalations per day with greater resistance might help sufferers of obstructive sleep apnea, who tend to have weak breathing muscles. In addition to more restful sleep, subjects showed an unexpected side effect after six weeks: Their systolic blood pressure plummeted by 12 millimetres of mercury. That's about twice as much of a decrease as aerobic exercise can yield and more than many medications deliver.
"That's when we got interested," said principal investigator Professor Doug Seals. Systolic blood pressure, which signifies the pressure in your vessels when your heart beats, naturally creeps up as arteries stiffen with age, leading to damage of blood-starved tissues and a higher risk of heart attack, cognitive decline and kidney damage.
While 30 minutes per day of aerobic exercise has clearly been shown to lower blood pressure, only about 5 per cent of adults meet that minimum. Meanwhile, 65 per cent of mid-life adults have high systolic blood pressure. "Our goal is to develop time-efficient, evidence-based interventions that those busy mid-life adults will actually perform," said Seals.
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