Heart disease patients who sit a lot have worse health even if they exercise

Patients with heart disease who sit a lot have worse health even if they exercise, reveals research. Patients in the study wore an activity monitor during their waking hours for nine days. The monitors allowed the researchers to measure how long patients spent being sedentary, or doing light, moderate or vigorous levels of physical activity. The researchers also assessed various markers of health including body mass index (BMI, in kg/m2) and cardiorespiratory fitness.