The Effect of Exercise on Sitting Time

By now most of us have heard that prolonged sitting has many adverse health effects. We've also been told that in general working out and then sitting all day does not make the situation much better. This new review article published in The Lancetlooked at the effect of physical activity and sedentary behavior with all-cause mortality. They found that daily sitting time did not have an effect on those in the most active quartile of physical activity. The people in the most active quartile did the equivalent of moderate exercise for an 60-75 minutes per day, everyday. Interestingly, those who sat the least but were also the least active otherwise, had a significantly increased risk of dying. So just being on your feet all day does not give you the same benefit as exercise. Another interesting fact was that regardless of physical activity, 3 or more hours per day of watching television was associated with increased mortality. 

http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2816%2930370-1/fulltext