According to a new study published by the BMJ, women who sit for long period of time everyday are 2 to 3 times more likely to develop blood clot in their lungs than more active women. The study is the first to prove that a sedentary lifestyle increases the risk of developing a pulmonary embolism.
US researchers followed almost 70,000 female nurses for 18 years and collected information about their lifestyle through biennial questionnaires. They found that the risk of pulmonary embolism was more than twice higher in women who spent more than 41 hrs a week (outside work) sitting comapred with those who spent less than 10 hrs a week. The study also showed that physical inactivity correlated with heart disease and hypertension.
The authors concluded that physical inactivity is associated with pulmonary embolism in women and suggest that the incidence of pulmonary embolism could be redudced by discouraging physical inactivity among the general public.
Source: Physical inactivity and idiopathic pulmonary embolism in women: prospective study. BMJ 2011; 343:d3867 (Published 4 July 2011) Open access
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