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  3. Exercises
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  5. Legs
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  7. Sled One Leg Calf Press On Leg Press

Exercise guide

Sled One Leg Calf Press On Leg Press

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

This unilateral isolation exercise targets the gastrocnemius and soleus, allowing for focused development and the correction of strength imbalances between legs. Using the leg press sled provides a stable environment to safely load the calves through a full range of motion.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Sled One Leg Calf Press On Leg Press demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Calves

Secondary

  • Glutes
  • Quadriceps

Equipment

  • Leg extension machine

Setup

  1. Sit in the leg press machine with your back firm against the pad and place the ball of one foot on the bottom edge of the sled.
  2. Position your foot so the heel hangs off the edge, allowing for full ankle mobility.
  3. Extend your leg to push the sled up and disengage the safety locks, keeping a slight micro-bend in the knee.
  4. Place your non-working foot on the floor or the machine's frame to stay out of the way.

How to do it

  1. Inhale and slowly lower the weight by bending at the ankle, allowing your heel to move toward you until you feel a deep stretch in the calf.
  2. Exhale and drive through the ball of your foot to push the sled away, reaching full plantarflexion (tip-toe position).
  3. Pause for one second at the top of the movement to emphasize the peak contraction.
  4. Control the descent for a 2-3 second tempo to maximize time under tension.

Form checklist

  • Keep the working knee 'soft' and stationary; do not allow it to bend and straighten to assist the movement.
  • Ensure the ball of your foot remains in constant contact with the platform.
  • Avoid bouncing at the bottom of the rep; use a controlled transition from stretch to contraction.
  • Maintain a neutral spine and keep your hips pressed firmly into the seat.

Pro tips

  • Pause for 2 seconds at the bottom of the stretch to dissipate the Achilles tendon's elastic energy, forcing the calf muscle to do all the work.
  • Focus your pressure through the big toe rather than the outer toes to better engage the medial head of the gastrocnemius.

Make it harder

  • Implement '1.5 reps' by performing a full range of motion rep followed immediately by a half-rep from the bottom stretch to the midpoint.
  • Slow the eccentric (lowering) phase to 5 seconds to increase metabolic stress and muscle fiber recruitment.

Frequently asked

What muscles does the sled one leg calf press on leg press work?
The sled one leg calf press on leg press primarily targets the calves, and also works the glutes and quadriceps as secondary muscles.
What equipment do you need for the sled one leg calf press on leg press?
The sled one leg calf press on leg press uses leg extension machine.
Is the sled one leg calf press on leg press good for beginners?
Yes. The sled one leg calf press on leg press 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
  • Air Punches MarchBeginner · calves, pectorals, 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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