1. Lie face up on the floor and lace your fingers behind your head.
2. Bring the knees in towards the chest and lift the shoulder blades off the ground without pulling on the neck.
3. Straight the left leg out to about a 45-degree angle while simultaneously turning the upper body to the right, bringing the left elbow towards the right knee.
4. Switch sides, bringing the right elbow towards the left knee.
5. Continue alternating sides in a 'pedaling' motion for 12-16 reps.
Vertical Leg Crunch
1. Lie face up on the floor and extend the legs straight up with knees crossed.
2. Contract the abs to lift the shoulder blades off the floor, as though reaching your chest towards your feet.
3. Keep the legs in a fixed position and imagine bringing your belly button towards your spine at the top of the movement.
4. Lower and repeat for 12-16 reps.
Long Arm Crunch
. Lie on a mat and extend the arms straight out behind the head with hands clasped, keeping the arms next to the ears.
2. Contract the abs and lift the shoulder blades off the floor.
3. Lower and repeat for 12-16 reps.
Reverse Crunch
. Lie on the floor and place hands on the floor or behind the head.
2. Bring the knees in towards the chest until they're bent to 90 degrees, with feet together or crossed.
3. Contract the abs to curl the hips off the floor, reaching the legs up towards the ceiling.
4. Lower and repeat for 12-16 reps.
5. It's a very small movement, so try to use your abs to lift your hips rather than swinging your legs and creating momentum.
Full Vertical Crunch
1. Lie on your back and extend the legs up towards the ceiling.
2. Place hands behind your head (lightly cupping it) and contract the abs to lift the shoulder blades off the floor.
3. At the same time, press the heels towards the ceiling, creating a 'u' shape with the torso.
4. Lower down and repeat for 12-16 reps.
Plank on Elbows and Toes
1. Lie face down on mat resting on the forearms, palms flat on the floor.
2. Push off the floor, raising up onto toes and resting on the elbows.
3. Keep your back flat, in a straight line from head to heels.
4. Tilt your pelvis and contract your abdominals to prevent your rear end from sticking up in the air.
5. Hold for 20 to 60 seconds, lower and repeat for 3-5 reps.
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