Too much sitting bad for heart, even for the very fit


Physical activity alone is not enough to stave off heart failure, said experts.  A reduced level of sedentary behaviour, such as sitting for long periods in front of a TV or computer, was needed too.  "Be more active and sit less - that's the message here," said lead scientist Dr Deborah Young, from health care providers Kaiser Permanente in Pasadena, California.  The researchers studied a diverse group of 84,170 men aged 45 to 69, none of whom started out with heart failure.  Participants' exercise levels were calculated in METs, or "metabolic equivalent of task", a measure of the body's energy use.  The number of hours they spent sitting each day was also counted.  CIRCULATION  Over a period of eight years, men who took little exercise were 52pc more likely to develop heart failure than those with high activity levels.  Outside work, men who spent five or more hours a day sitting were 34pc more at risk of heart failure than those who sat for no more than two hours.  This was true regardless of how much the men exercised when they were not sitting down.  The findings appear in the latest edition of the American Heart Association journal 'Circulation: Heart Failure'.  Heart failure symptoms include extreme fatigue, breathlessness and swollen ankles.Source

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