Combine cardio and standing abs moves for an intense, waist-whittling routine that will tighten your tummy fast.

Research shows that high-intensity interval training (HIIT) may be more effective than traditional cardio at getting rid of stubborn abdominal body fat.

Research shows that high-intensity interval training may be more effective than traditional cardio at getting rid of stubborn abdominal body fat

Strengthening your core muscles can help create flatter, more drawn-in abs and improve your posture, contributing to a slimmer waistline.

So get ready to blast off belly fat with this 15-minute circuit that combines fat-scorching cardio intervals with standing core exercises that do double-duty as your active recovery.

Do as many rounds as possible (AMRAP) of each exercise, in order with no rest. The core strength moves double as the warm-up, recovery and cool-down. Repeat the circuit 3 times total.