Tuesday July 23, 2019
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Daily Exercise Can Help People With Heart Disease

When heart disease runs in the family, more physical activity may be the best defence, say researchers.

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Exercise, representational image . IANS

When heart disease runs in the family, more physical activity may be the best defence, say researchers. According to the findings reported in the American Heart Association’s journal Circulation, greater grip strength, more physical activity and better cardiorespiratory fitness are associated with reduced risk for heart attacks and stroke — even among people with a genetic pre-disposition for heart disease.

Gastroesophageal Reflux Disease is simply known as heartburn. Wikimedia Commons
Heart disease can run in families as well. Wikimedia Commons

“The main message is that being physically active is associated with a lower risk of heart disease, even if you have a high genetic risk,” said Erik Ingelsson, lead study author and Professor of Medicine at Stanford University’s School of Medicine in California. To reach this conclusion, researchers looked at data from roughly a half-million people in the UK Biobank database.

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For participants with an intermediate genetic risk for cardiovascular diseases, those with the strongest grips were 36 per cent less likely to develop coronary heart disease and had a 46 per cent reduction in their risk for atrial fibrillation, compared to study participants with the same genetic risk who had the weakest grips.

Among individuals deemed at high genetic risk for cardiovascular diseases, high levels of cardiorespiratory fitness were associated with a 49 per cent lower risk for coronary heart disease and a 60 per cent lower risk for atrial fibrillation compared to study participants with low cardiorespiratory fitness.

Heart Disease can be minimised by exercise.

“The study is not a prescription for a specific type or amount of exercise and because the results come from an observational study, Ingelsson said, adding that “we can’t definitely claim a causal connection.” Nonetheless, the researchers said the data is robust and the results are worthy for consideration in guidelines. IANS

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Suffering From Low Blood Pressure? Do an Hour or More of Daily Exercise

Exercise regimens during space flight, followed by saline injections after landing, were sufficient to prevent the condition from occurring

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The study is the first to examine the condition called "orthostatic intolerance" during daily activities when the astronauts returned home. Pixabay

Suffering from low blood pressure? Do an hour or more of daily exercise and stay hydrated to improve the condition and control fainting or dizziness episodes, finds a NASA-funded study on astronauts.

The study is the first to examine the condition called “orthostatic intolerance” during daily activities when the astronauts returned home.

The researchers found that exercise regimens during space flight, followed by saline injections after landing, were sufficient to prevent the condition from occurring.

“Doing an hour or more of daily exercise was sufficient to prevent loss of heart muscle, and when it was combined with receiving hydration on their return, the condition was prevented entirely. We expected to see up to two-thirds of the space crew faint. Instead, no one fainted,” said cardiologist Dr Benjamin Levine from UT Southwestern Medical Center.

Blood Pressure, Daily, Exercise
Suffering from low blood pressure? Do an hour or more of daily exercise and stay hydrated to improve the condition and control fainting or dizziness episodes. Pixabay

A similar condition is also diagnosed in patients as Postural Orthostatic Tachycardia Syndrome (POTS), which is predominantly found in women. The dizziness that it causes is life-changing and can be debilitating.

Dr Levine has helped one Dallas patient return to a normal life.

For the study, published in the journal Circulation, the researchers used a small blood pressure cuff on astronauts’ finger to measure blood pressure and every heartbeat.

These measurements were taken during multiple 24-hour periods before, during, and after six months of spaceflight. Twelve astronauts were involved — eight men and four women.

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This treatment is just one of the ways medicine, heart research, and space travel have connected throughout Dr Levine’s work. The successful moon landing in 1969 was an early influence on his career.

The early interest led Dr Levine into space research within the field of cardiology, and he began working with the space shuttle programme in 1991.

“We put a catheter in an astronaut’s heart — it was former UT Southwestern faculty member Dr Drew Gaffney — and sent him into space. It was probably the most expensive right-heart catheterization ever,” Dr Levine reminisced.

“Much of our early research was devoted to understanding why astronauts faint when they return from space. Now, we can prevent it from happening”. (IANS)