Should I unlock the locks on a leg press when performing Leg Press Calf Raise on a 45-degree leg press machine?

Release the carriage stops, but leave the lower safety catches set. The sled has to be free to travel for the ankles to move through any range, so the lock handles at the sides get rotated clear exactly as they do for a normal leg press. Keep the adjustable safety stops engaged and set them just below your lowest heel position, because here the loaded sled is held up only by the balls of your feet and a slip has nothing else to catch it.

Are Leg Press Calf Raises good?

Yes, Leg Press Calf Raises are an excellent exercise for isolating and strengthening the calves. They allow for a controlled, heavy load and are especially useful for individuals who need additional stability compared to standing calf raise variations.

How does it compare with the standing and seated calf raise machines?

The legs stay almost straight through the rep, so it trains the same joint position as a Machine Standing Calf Raise while the load travels through the sled instead of pressing down on your shoulders and spine. A Machine Seated Calf Raise bends the knee to roughly 90 degrees, which slackens the gastrocnemius and leaves most of the work to the soleus, so the two are complements rather than substitutes.

What rep range works best?

Sets of 10 to 20 reps suit it well, since the range of motion is short and the calves handle volume better than they handle a single heavy grind. Lower the heels under control, pause briefly in the stretched position, and hold the top for a second instead of bouncing the sled. Heavier sets of 8 to 12 reps are fine once your foot placement and technique are secure.

Does foot position on the platform change anything?

Yes. Placing the feet low enough that only the balls of the feet contact the platform and the heels hang free off the bottom edge is what gives you the full range of motion, and feet set too high turn the rep into a short, blocked push. Turning the toes out biases the medial head of the calf and turning them in biases the lateral head, so get the heel drop right first and treat toe angle as a fine adjustment.

Leg Press Calf Raise

What Is the Leg Press Calf Raise?

The Leg Press Calf Raise is an isolation exercise that primarily targets the calves, specifically the gastrocnemius, with the soleus assisting. It is a beginner-level movement that can be performed using a 45-degree leg press machine or a seated leg press machine, offering versatility and ease of use for a wide range of fitness levels.

Because the knees stay close to straight for the whole set, the gastrocnemius stays long across the knee joint and does most of the work, and measurements of plantar flexion done lying down back that up: bending the knee to 90 degrees cut ankle force by about 31% and gastrocnemius activity by about a third, with no extra soleus effort to make up the difference. That places this variation in the same category as the Machine Standing Calf Raise rather than the bent-knee Machine Seated Calf Raise, where the soleus takes over. Setting only the balls of the feet on the platform lets the heels travel below its edge, so the calves work through a full stretch and a full contraction on every rep.

One of the key advantages of the Leg Press Calf Raise is the ability to load more weight safely compared to free-weight calf exercises. The leg press machine provides stability, making it a suitable option for those aiming to build strength and size in their calves. Just as useful is what the seat does for the spine: the back stays supported and the weight never rests on the shoulders, so there is no axial load to tolerate, which makes this a practical swap for anyone who finds the shoulder pads of a standing calf raise machine uncomfortable. This exercise is also an excellent choice for individuals who struggle with standing calf raises due to balance or mobility issues.

The Leg Press Calf Raise can be easily incorporated into a lower-body workout or used as a supplementary exercise to target the calves after more demanding compound lifts. Calves respond well to volume and a deliberate tempo, so controlled reps with a brief pause in the stretched position tend to be more productive than bouncing a heavy sled. Training it alongside a bent-knee variation covers both the gastrocnemius and the soleus across the week, and the Leg Press Single-leg Calf Raise is the natural progression once you want to address a side-to-side difference.

Muscles Worked

MuscleActivation

Gastrocnemius (Lateral Head): Primary
Gastrocnemius (Medial Head): Primary
Soleus: High
Peroneus Longus: Medium
Vastus Lateralis: Medium
Vastus Medialis: Medium
Rectus Femoris: Low

Instructions

Set Up the Machine: Sit on the leg press with your back flat against the pad and place the balls of your feet low on the foot platform, about hip-width apart, so your heels hang off the bottom edge.
Set the Safeties: Release the handles so the sled is free to move, and leave the machine's safety stops set just below the bottom of your range so the platform cannot travel down past it if a foot slips.
Starting Position: Straighten your legs, but do not lock your knees. This is your starting position.
Perform the Raise: Push through the balls of your feet, lifting your heels as high as possible while keeping the rest of your legs stationary. Focus on contracting your calves at the top of the movement.
Pause and Squeeze: Hold the top position briefly for maximum muscle engagement.
Lower Back Down: Slowly lower your heels below the level of the platform, allowing a stretch in your calves at the bottom without bouncing.
Repeat: Perform the desired number of repetitions with controlled form.

Common Mistakes

Bending the Knees
Letting your knees bend and straighten turns the rep into a short leg press and shifts the work onto your quads, so keep your legs straight with only a soft bend and move the sled with your ankles alone.
Feet Too High on the Platform
Setting your feet too far up the platform leaves your heels nothing to drop into, so place the balls of your feet at the bottom edge and let your heels hang free below it.
Feet Slipping Off the Platform
Poor foot positioning increases the risk of slipping, especially with heavier weights. Ensure the balls of your feet are securely placed on the platform edge.
Limited Range of Motion
Failing to fully extend at the top or stretch at the bottom minimizes muscle activation. Aim for a complete range of motion for optimal results.
Bouncing Heels
Performing rapid, bouncing movements reduces effectiveness and may lead to strain on the Achilles tendon. Always use a controlled, deliberate motion.
Excessive Weight
Using more weight than you can handle compromises form and increases injury risk. Choose a weight that allows full control through the entire range of motion.

Injuries

Leg Press Calf Raise is a medium risk exercise when performed with proper technique. The calves tolerate heavy loading well, but this variation carries one hazard that standing and seated calf raises do not: the sled is held up by nothing except the balls of your feet. If a foot slips off the bottom edge of the platform, or the knees bend to absorb the load, the entire stack comes down on a nearly straight leg. Set the machine's safety stops or catches before the working set so the sled can only travel a few inches if you lose the position, keep enough of the forefoot on the platform that the contact point sits well inside the edge rather than balanced on the toes, and keep the legs extended with the knees soft but never flexing and re-extending to bounce the weight.

The Achilles tendon is the main strain point once the machine is set up safely. At the bottom of each rep the heel drops below the platform and the tendon is loaded at full stretch, which is exactly where excessive weight or a bounced turnaround does damage. The plantar fascia takes the other half of the load, since the whole stack passes through the ball of the foot, so people with a history of heel pain often feel this variation before they feel a seated one. Machine fit matters too: for people who are exceptionally tall or short, the seat position may not allow a comfortable range of motion, so adjust the seat and foot placement to find a position that lets you extend the legs without the hips rolling off the pad.

Prevention comes down to load and tempo. Warm up thoroughly before starting to improve ankle mobility and reduce injury risk, begin with a manageable weight and increase gradually rather than loading the sled to what your legs could press, and control both directions of every rep. Pause briefly at the bottom instead of bouncing out of the stretch, and work in a moderate range of 10 to 15 reps where the calves fatigue before your foot position starts to drift. If you find yourself pushing the platform back up with a small knee bend, the weight is too heavy.

If loaded forefoot work is uncomfortable, regress to Bodyweight Calf Raise for the same range of motion without a sled overhead, or to Machine Seated Calf Raise, which loads the calves through the knee rather than through a straight leg. When the movement is solid, progress by adding weight, slowing the lowering phase, or moving to Leg Press Single-leg Calf Raise with a lighter load. Stop the set immediately if you feel sharp pain at the back of the heel, a snapping or popping sensation in the Achilles, or heel pain that lingers into your first steps the next morning, and reassess your form or weight selection before training calves again.

Overview

Primary Focus: Calves
Equipment: Machine
Modality: Strength
Difficulty: Beginner

Alternative Exercises

Frequently Asked Questions

Q: Should I unlock the locks on a leg press when performing Leg Press Calf Raise on a 45-degree leg press machine?: Release the carriage stops, but leave the lower safety catches set. The sled has to be free to travel for the ankles to move through any range, so the lock handles at the sides get rotated clear exactly as they do for a normal leg press. Keep the adjustable safety stops engaged and set them just below your lowest heel position, because here the loaded sled is held up only by the balls of your feet and a slip has nothing else to catch it.
Q: Are Leg Press Calf Raises good?: Yes, Leg Press Calf Raises are an excellent exercise for isolating and strengthening the calves. They allow for a controlled, heavy load and are especially useful for individuals who need additional stability compared to standing calf raise variations.
Q: How does it compare with the standing and seated calf raise machines?: The legs stay almost straight through the rep, so it trains the same joint position as a Machine Standing Calf Raise while the load travels through the sled instead of pressing down on your shoulders and spine. A Machine Seated Calf Raise bends the knee to roughly 90 degrees, which slackens the gastrocnemius and leaves most of the work to the soleus, so the two are complements rather than substitutes.
Q: What rep range works best?: Sets of 10 to 20 reps suit it well, since the range of motion is short and the calves handle volume better than they handle a single heavy grind. Lower the heels under control, pause briefly in the stretched position, and hold the top for a second instead of bouncing the sled. Heavier sets of 8 to 12 reps are fine once your foot placement and technique are secure.
Q: Does foot position on the platform change anything?: Yes. Placing the feet low enough that only the balls of the feet contact the platform and the heels hang free off the bottom edge is what gives you the full range of motion, and feet set too high turn the rep into a short, blocked push. Turning the toes out biases the medial head of the calf and turning them in biases the lateral head, so get the heel drop right first and treat toe angle as a fine adjustment.