Alternate Heel Touchers

Body Part: Waist

Muscle: Abs

Equipment: Body Weight

Alternate Heel Touchers is a bodyweight floor exercise that trains the obliques through repeated side-to-side trunk flexion and short-range reaches. The image shows a bent-knee crunch position on the floor, with the shoulders lifted and the hands sliding toward each heel one side at a time. It is not a full sit-up or a twisting bicycle motion; the goal is to keep the ribs tucked and the reach controlled so the side of the waist does the work.

The exercise primarily targets the external obliques, with the rectus abdominis and deeper core muscles helping keep the torso curled and steady. Because the hips stay flexed and the feet stay planted, the position lets you isolate the waist without needing equipment. That makes it useful for warm-ups, core circuits, and accessory work when you want direct abdominal tension without loading the spine aggressively.

Setup matters because the movement is small and easy to turn into a fast, sloppy tap. Lie on your back, bend your knees, and place your feet flat and close enough that you can touch your heels without reaching or yanking. Curl your ribs toward your pelvis, lift your shoulders just off the floor, and keep your chin slightly tucked so the neck stays long. From there, alternate reaching toward the left heel and right heel without letting the lower back arch away from the floor.

Each rep should feel like a short, deliberate contraction, not a swing. Reach as far as you can while keeping the opposite shoulder lifted and the torso curled, then return through the same path under control. Exhale as you reach, inhale as you come back to center, and keep the pelvis quiet so the movement stays in the waist. If you can no longer keep the crunch position or the reaches start coming from momentum, shorten the range and slow the pace rather than chasing more reps.

Instructions

• Lie on your back on the floor with your knees bent, feet flat, and heels close enough to reach without sliding your hips.
• Lift your shoulders a few inches off the floor and curl your ribs toward your pelvis to keep the abdominals engaged.
• Keep your chin slightly tucked and your gaze up so your neck stays long instead of pulling forward.
• Reach your right hand toward your right heel by bending through the side of your torso, not by swinging your arm.
• Squeeze the left side of your waist as you reach, then bring the hand back to the starting position with control.
• Repeat on the other side, reaching your left hand toward your left heel while keeping the shoulders lifted.
• Keep alternating sides at a steady pace so each rep is driven by the obliques rather than momentum.
• Exhale on each reach, inhale as you return to center, and keep the lower back from arching off the floor.
• Finish the set by lowering your shoulders and resting before the next round.

Tips & Tricks

• Keep your shoulders just off the floor; if they relax all the way down, the obliques stop doing most of the work.
• Think about shortening the side of your waist on each reach instead of trying to touch farther with your hand.
• If your feet slide or your knees drift outward, bring them closer together to make the heel target easier to control.
• Do not yank on your neck or look side to side; keep the chin slightly tucked and the eyes up.
• A slower tempo makes the obliques work harder than rapid alternating taps.
• If you feel hip flexors more than your waist, reduce the reach distance and keep the pelvis quieter.
• Touching the heel is less important than keeping the torso curled and the opposite shoulder off the floor.
• Stop the set when the movement turns into a bounce or the lower back starts arching away from the floor.

Frequently Asked Questions

What muscles do Alternate Heel Touchers work most?

They primarily work the obliques, with the rectus abdominis and deeper core muscles helping keep the curl and pelvis stable.

Is this the same as a sit-up?

No. In this exercise the shoulders stay lifted and you alternate short reaches toward each heel, rather than sitting all the way up.

Where should I feel Alternate Heel Touchers?

You should feel the sides of your waist working on each reach, with some tension through the front of the abdomen to hold the crunch position.

Why do my hip flexors take over?

That usually means the torso is opening too much or the feet are too far away. Bring the heels closer and keep the ribs curled toward the pelvis.

Should I actually touch my heel every rep?

Touching the heel is helpful, but control matters more. If you can only reach partway while keeping the shoulders up and the waist engaged, that is still correct.

Can beginners do this exercise?

Yes. Beginners can keep the range short and focus on holding the crunch position while alternating side-to-side reaches.

What is the biggest form mistake?

The most common mistake is swinging the arms or rocking the torso instead of using a controlled side crunch to reach the heel.

How can I make Alternate Heel Touchers harder?

Slow the tempo, pause briefly at each heel, and keep the shoulders lifted for the full set so the obliques stay under tension.