Commentary: Luke and Cooper are wrong: physical activity has a crucial role in weight management and determinants of obesity

Luke and Cooper claim that evidence does not support a relationship between physical activity (PA) and obesity, and that policy recommendations to control the obesity epidemic should be limited to ‘altering the modern food environment’.1 We disagree and contend that to support their position Luke and Cooper misrepresent and/or ignore an extensive evidence base of observational and experimental studies that clearly support an effect of PA on...