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Hack One-Leg Calf Raise exercise demonstration - starting position (step 1 of 2)
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Step-by-step demonstration of the Hack One-Leg Calf Raise exercise showing proper form and technique

Hack One-Leg Calf Raise

Target Muscles

Primary:

Equipment Required

Exercise Type

Weight & Reps

How To Do

Stand on a hack squat machine with one foot on the platform, heel hanging off the edge, and shoulders under the pads. Lower your heel slowly below the platform, then press through the ball of your foot to lift your heel as high as possible, squeezing your calf at the top. Keep the movement controlled for maximum effectiveness.

Step-by-Step Instructions

  1. Position yourself on a hack squat machine with your shoulders under the pads and your back against the backrest.
  2. Place one foot on the platform with the ball of your foot firmly planted and your heel hanging off the edge. Keep the other foot off the platform.
  3. Unlock the safety handles of the machine and straighten your supporting leg to lift the weight.
  4. Lower your heel slowly and under control, allowing it to drop below the level of the platform to stretch your calf muscle.
  5. Push through the ball of your foot to raise your heel as high as possible, contracting your calf muscle at the top of the movement.
  6. Repeat for the desired number of repetitions, then switch to the other leg.

Explore more lower legs exercises or strength machine exercises in our exercise library.

Alternative Exercises

Frequently Asked Questions

What muscles does the Hack One-Leg Calf Raise work?
The Hack One-Leg Calf Raise primarily targets the gastrocnemius and soleus muscles in the lower leg. These muscles are responsible for plantar flexion and help improve lower leg strength, balance, and definition.
What equipment is needed for the Hack One-Leg Calf Raise, and are there alternatives?
This exercise is performed using a hack squat machine with a stable platform. If you don’t have access to one, you can replicate the movement using a Smith machine or by holding onto a sturdy surface while standing on a raised block or step.
Is the Hack One-Leg Calf Raise suitable for beginners?
Yes, beginners can perform this exercise, but it’s important to start with lower resistance and focus on proper technique. Once you feel comfortable balancing on one leg and controlling the movement, you can gradually increase the weight.
What are common mistakes to avoid during the Hack One-Leg Calf Raise?
Avoid bouncing at the bottom of the movement, as this reduces muscle activation and increases injury risk. Also, ensure you are using a full range of motion and keeping your knee slightly unlocked to prevent joint strain.
How many sets and reps should I do for the Hack One-Leg Calf Raise?
For strength and muscle growth, aim for 3–4 sets of 10–15 controlled reps per leg. If your goal is endurance or muscle conditioning, you can increase the reps to 15–20 while maintaining proper form.
Are there any safety tips for performing the Hack One-Leg Calf Raise?
Keep your core engaged and hold onto the machine’s handles for stability. Always perform the movement slowly to protect your Achilles tendon and avoid locking your knee at the top position.
What are some variations of the Hack One-Leg Calf Raise?
You can try the two-leg version for more stability or perform the movement with a pause at the top for increased time under tension. Adding a slight bend in the knee can emphasize the soleus muscle.