This 7-day treadmill plan combines walking, jogging, sprints, and incline workouts for fat loss and endurance.

It’s the 15-15-15 workout, and it will give you a good 45-minute cardio session even if you cannot stand doing anything for 45 minutes straight. I’ve often done a version of this when I’m at ...

Maximize every step with these five stair climber workouts designed to sculpt lean legs, boost endurance, and accelerate fat loss.