Seated calves extension
The seated calves extension is an isolation machine exercise that targets the soleus muscle of the lower leg. By keeping the knees bent at a 90-degree angle, it deactivates the larger gastrocnemius muscle to focus purely on calf thickness and ankle stability.
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- Sit securely on the machine and place the balls of your feet on the lower platform with your heels hanging off the edge.
- Position the thigh pads snugly over your lower thighs, just above your knees, and grip the handles.
- Lift the weight slightly by extending your ankles to release the safety bar.
- Slowly lower your heels as far as possible to achieve a deep stretch in your calf muscles.
- Press through the balls of your feet to raise your heels as high as possible, squeezing your calves at the peak of the movement.
- Lower the weight under complete control back to the fully stretched starting position.
Muscles worked
Form tips
- Pause for one full second at the bottom stretch and top contraction to eliminate momentum and the stretch reflex of the Achilles tendon.
- Ensure the thigh pad is adjusted tightly against your legs so your thighs cannot bounce up to assist the lift.
- Distribute your weight evenly across the balls of your feet, focusing pressure on the big toe and second toe for optimal alignment.
Common mistakes
- Bouncing the weight rapidly at the bottom of the movement, which shifts the load from the muscle to the tendon.
- Using too much weight, resulting in a limited range of motion that fails to fully stretch or contract the calf muscle.
- Allowing the ankles to roll outward during the extension phase, which can cause joint strain.
FAQ
How many reps and sets should I perform?
Because the soleus muscle is predominantly composed of slow-twitch muscle fibers, it responds best to higher volume. Perform 3 to 4 sets of 15 to 25 slow, controlled repetitions.
What is the difference between this and a standing calf raise?
The standing calf raise targets the gastrocnemius because the knees are locked. The seated calves extension bends the knees, which relaxes the gastrocnemius and isolates the soleus muscle.
Can I perform this exercise if I do not have a seated calf machine?
Yes. You can sit on a flat bench with a weight plate or heavy dumbbells resting on your thighs, placing the balls of your feet on a raised block or step to allow a full range of motion.
