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  5. Legs
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  7. Alternate Heel Tap Sit Against Wall

Exercise guide

Alternate Heel Tap Sit Against Wall

  • Beginner
  • Compound
  • Rep-based
  • Lower legs
  • Upper legs

This exercise combines an isometric wall sit with dynamic heel elevations to build lower body endurance while specifically targeting the calves, quadriceps, and glutes. It is highly effective for improving knee stability and increasing time-under-tension for the lower leg muscles.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Alternate Heel Tap Sit Against Wall demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Calves
  • Glutes
  • Quadriceps

Secondary

  • Adductors
  • Hamstrings

Equipment

  • Body weight

Setup

  1. Stand with your back flat against a sturdy wall and feet shoulder-width apart.
  2. Walk your feet forward approximately 2 feet from the wall.
  3. Slide your back down the wall until your thighs are parallel to the floor, creating a 90-degree angle at the knees.
  4. Ensure your ankles are positioned directly underneath your knees.

How to do it

  1. While holding the seated position, lift your right heel as high as possible by pressing through the ball of your foot.
  2. Lower the right heel back to the floor with control and immediately lift the left heel.
  3. Continue alternating heel taps at a steady, rhythmic pace (approx. 1 second per tap).
  4. Maintain a steady breathing pattern, exhaling on each heel lift and inhaling as you switch sides.

Form checklist

  • Keep your entire back and head pressed firmly against the wall at all times.
  • Ensure your knees do not cave inward; keep them tracked over your mid-foot.
  • Do not rest your hands on your thighs; keep them at your sides or crossed over your chest.
  • Maintain the 90-degree knee angle without letting your hips slide upward.

Pro tips

  • Focus on pressing the small of your back into the wall to engage your core and prevent lower back arching.
  • Pause for a split second at the top of each heel lift to maximize the peak contraction in the calf muscle.

Make it harder

  • Hold a dumbbell or a weighted plate on your lap to increase the resistance on the quads and calves.
  • Extend your arms straight out in front of you at shoulder height to increase the demand on your core and balance.

Frequently asked

What muscles does the alternate heel tap sit against wall work?
The alternate heel tap sit against wall primarily targets the calves, glutes, and quadriceps, and also works the adductors and hamstrings as secondary muscles.
What equipment do you need for the alternate heel tap sit against wall?
The alternate heel tap sit against wall requires no equipment — just your body weight.
Is the alternate heel tap sit against wall good for beginners?
Yes. The alternate heel tap sit against wall is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • 3 Point Standing HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Cone Single Foot Lateral HopsIntermediate · calves, glutes, hamstrings, and quadriceps
  • 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
  • Alternate Foot HopscotchIntermediate · calves, glutes, and quadriceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

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