These seven exercises crank up the intensity by targeting your abs, obliques, lower back, and hips while also getting your heart rate up. Do each move for 30–45 seconds, rest for 15–20 seconds between ...

B) Bend your knees, contract your abs and slam the ball down to the ground. Try not to round your back when you pick up the ball. 'High-to-low slams are perfect for combining core strength with cardio ...

Squeezing your calf muscles, slowly raise your body, lifting your heels until you’re on your toes. Make sure to stand tall and straight. Then lower your heels back to the floor with control.