Why would anyone do this, instead of running for 1 minute and then being done? Or at least 4x 15sec if you are in terrible shape. Also, what are the units of

Why would anyone do this, instead of running for 1 minute and then being done? Or at least 4x 15sec if you are in terrible shape. Also, what are the units of "fitness" that increase 10%? That smells fake. The article doesn't mention a control, either. Talking to a doctor might be enough to motivate increased activity (and better eating), regardless of the minute of activity during the meeting.