6. RUSSIAN TWISTS
Sit on the floor with both legs bent and feet on the ground. Extend arms straight out holding a weight or medicine ball. Lower your upper body back until your back is at a 45-degree angle to the floor. Rotate your arms from side to side, twisting your upper body. Make sure not to lift or move your feet.
7. BOX JUMPS
Stand in an athletic position, with your feet shoulder-width apart, at a comfortable distance from the box. When you’re ready to jump, drop quickly into a quarter squat, then extend your hips, swing your arms, and push your feet through the floor to propel yourself onto the box.
8. TWO-HANDED KETTLEBELL SWING
Stand up straight, with feet a bit wider than hip-distance apart. Grab hold of the handle with both hands, keeping your palms facedown and arms in front of the body. Maintain a slight bend to the knee and drive the hips back, lowering the body—but not too low, this isn't a squat! Then, in a fluid motion, explosively drive the hips forward while swinging the kettlebell, keeping the glutes and core engaged.
9. KNEELING VACUUM
Duration: 1 min.
Kneel on the floor and sit back with your butt on your heels. Place hands on the sides of your legs. Pull your shoulders back then pull your abs in as if trying to touch your belly button to your spine. Hold the vacuum for 20 or more seconds, then maintain the contraction for 1 to 2 seconds, alternating contractions and releases.
10. JUMPING BURPEE
Start standing with your feet together. Bend at the knees and waist and place the palms of your hands on the ground. Kick your feet backward so that you are in a plank position. Kick your feet back in, stand back up, and immediately jump in the air. Land on your feet.
8 Amazing Fat Burning Intervals >>>