The Peloton app offers all kinds of classes on it, some of which I've highlighted before. With an All-Access membership ($44 ...

Stephen Ranellone — an exercise physiologist at the Hospital for Special Surgery in Manhattan — weighs in on the pros and cons of split workouts and full-body burns.

Join me for a week of workouts as I take you through my daily routine! From cardio to training splits, get a behind-the-scenes look at how I stay fit and focused.