Study: Working out for just five minutes can reduce heart attack risks

The preliminary results showed that with about half the tests done, the researchers have found significant drops in blood pressure and improvements in large-artery function among those who performed IMST with no changes in those who used a sham breathing device that delivered low-resistance.

The IMST group is also performing better on certain cognitive and memory tests. When asked to exercise to exhaustion, they were also able to stay on the treadmill longer and keep their heart rate and oxygen consumption lower during exercise.

Some cyclists and runners have already begun to use commercially-available inspiratory muscle trainers to gain a competitive edge. But Seals and Craighead stress that their findings are preliminary and curious individuals should ask their doctor before considering IMST.

That said, with a high compliance rate (fewer than 10 per cent of study participants drop out) and no real side-effects, they're optimistic. "High blood pressure is a major risk factor for cardiovascular disease, which is the number one cause of death in America," said Craighead. "Having another option in the toolbox to help prevent it would be a real victory."

source: economictimes.indiatimes.com

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