Roll down negative curl

The roll down negative curl focuses on the hardest part of the crunch — the lowering phase.
Pay special attention to your form if you have lower back or neck problems.

Getting set
Sit with your knees bent and feet flat on the floor hip-width apart. Reach forward and place your hands on the outside of your thighs. Slide your shoulders down and tilt your chin slightly so there’s a few inches of space between your chin and your chest. Gently pull your abdominals inward. See photo A.

The exercise
Tuck your pelvis and slowly lower back as far as you can go and keep your feet on the ground. Hold for a moment and then curl slowly back up. See photo B.

Do’s and don’ts

• DO keep your abdominals pulled in so that you feel more tension in your abs.
• DO curl as well as lift. For an explanation of curling., in which you find out common crunch mistakes.
• DON’T hunch or collapse your shoulders.

Other options
Hands on chest negative curl (harder): Fold your arms across your chest,
palms down and tuck your chin in slightly. This position increases the weight of your upper body.
Hands behind head negative curl (harder): Place your hands behind your
head without lacing your fingers. This version further increases the weight of your upper body.

Bent knee side crunch

The bent knee side crunch challenges your obliques to work together with all of your abdominal muscles.

Getting set
Lie on your back with your knees bent and your feet hip-width apart and flat on the floor. Drop both of your knees to one side and keep your legs stacked together. Place both hands behind your head without lacing your fingers. Place thumbs at base of skull. See photo A.

The exercise
Curl straight upward keeping your legs together and drawing your ribs toward your hips. Lower back down. Do all the repetitions on one side and then switch to the other side. See photo B.

Do’s and don’ts

• DO keep torso rotated at the waist and legs together.
• DO keep your head, neck, and shoulders relaxed.
• DO move slowly and take the time to feel your abs working.
• DON’T pull on your neck or touch your elbow to your knee.

Other options
Weighted bent knee side crunch (harder): Hold a lightweight plate or dumbbell
on your chest, or for an even greater challenge, hold a weight on top of or behind your head. Just don’t press the plate down too hard.

Oblique abdominal crunch

The oblique crunch works all your abdominal muscles with an emphasis on your obliques.
Pay special attention to form if you have a history of lower back or neck discomfort.

Getting set
Lie on your back with your knees bent and your feet hip-width apart and flat
on the floor. Place your left hand behind your head so your thumb is behind
your left ear. Place your right arm along the floor beside you. Bring your
elbow out to the side and round it slightly inward. Tilt your chin so your chin
and your chest are a few inches apart. Pull your abdominals in. See photo A
.

The exercise
As you curl your head, neck, and shoulder blades off the floor, twist your torso to the right, bringing your left shoulder toward your right knee. (Your elbow won’t actually touch your knee.) Lower back down. Do all the repetitions on one side and then switch to the other side. See photo B.

Do’s and don’ts

• DO concentrate on rotating from your middle instead of simply moving your elbows toward your knees.
• DO keep both hips squarely on the ground as you twist to protect your lower back.

Other options

• Legs-up crunch with a twist (harder): Lift your bent knees off the floor and cross one ankle over the other.
• Straight-arm crunch with a twist (harder): Reach for your opposite knee with your arm straight rather than your elbow bent. Reach past the outside edge of your knee.