Overweight/obese adults ( n = 19 ; aged 45-65 years ) were recruited for a randomized three-treatment crossover trial with a one-week washout between treatments : 1 ) uninterrupted sitting ; 2 ) sitting with 2 min bouts of light-intensity walking at 3.2 km/h every 20 min ; and , 3 ) sitting with 2 min bouts of moderate-intensity walking at between 5.8 and 6.4 km/h every 20 min .