Sedentary lifestyle is known risk factor for heart
disease. Prolonged sitting is a risk factor for heart disease, this cannot be
bitten with regular exercise according to study published in J Am Coll Cardiol.
Total 71,018 Participants of Women’s Health
Initiative Observational Study (N =), aged 50-79 and free of CVD at baseline.
Sitting for more than or equal 10 hours per day compared to less than equal
5 hours per day was associated with increased heart attack risk (HR=1.18, 95%
CI 1.09, 1.29). in this study.
Sitting for prolonged hours continued to be harmful
in almost every level of activity i.e. high, medium, low, and inactive. Only in
women who walked for seven hours per week or jogged or ran for four to five
hours week did not have high heart attack risk with prolonged sitting.
Medium level of exercise i.e. two and a half hours a week of moderate
activity or 8.4 to 20 MET-hours/weeks was still a risk for heart attack
with prolonged sitting.
Women who sat more did
less exercise, and prolonged sitting and inactivity were both independent risk
factors for heart attack.
More sitting increased heart attack risk in overweight
women i.e. BMI more than 25, but not BMI less than 25.
Older age with prolonged sitting increased heart
Reducing sitting time positively helped in reducing
heart attack risk.
Labels: Basic article, For Doctors, Ischemic Heart Disease, Patient Information, Preventive cardiolgy