Relatively simple yet effective exercises are often particularly popular. Step-ups definitely fall into this category, primarily training our glutes and legs. They also burn calories at the same time.

They're simple, but effective, and they'll have you burning calories for hours after they're done.

Dumbbell Burn—programmed by Alexandra Mack, CPT—is a four-week, full-body plan designed to build strength, sculpt muscle, and improve endurance, all while keeping your workouts fresh and challenging.

Your typical week is filled never-emptying inbox, family commitments, and other pressing responsibilities. That makes it hard to get a workout in. So, when you do finally find a moment to make it to ...