Single Leg Calf Raise
The single-leg calf raise is a standing exercise in which you rise onto the ball of one foot with a straight knee, then bring the heel back down, with your whole bodyweight on that leg. With the knee straight it works the gastrocnemius, the larger calf muscle, with the soleus beneath it working too, and it trains each calf on its own with no equipment.
Also called: One Leg Calf Raise, Unilateral Calf Raise, Single Leg Calf Raises, Single-Leg Heel Raise · Equipment: bodyweight · Pattern: push
Step by step
- Stand on one foot, ideally with the ball of that foot on the edge of a step, and hook the other foot behind your ankle.
- Rest one hand on a wall or rail for balance. Keep the working knee straight but not locked.
- Let the heel sink below the step, or down to the floor, into a comfortable stretch.
- Push through the ball of the foot, especially the big toe, and rise as high as you can.
- Hold the top for a second with the heel high and the ankle straight, not rolling outward.
- Bring the heel back down under control into the stretch and pause for a moment before the next rep.
- Complete all reps on one leg, then switch legs.
- Knee straight, rise straight up
- Deep stretch at the bottom, then pause
- Push through your big toe
- Hold the top for a second
- Hand on the wall, calf does the work
In VALDA, these cues are one tap away on the exercise while you train.
What it trains
| Muscle | Role | Evidence |
|---|---|---|
| Gastrocnemius: medial head | Prime mover | C |
| Gastrocnemius: lateral head | Prime mover | C |
| Soleus | Secondary | C |
| Peroneals (fibularis longus/brevis) | Stabiliser | D |
| Tibialis posterior | Stabiliser | D |
Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.
What goes wrong, and the fix
Bouncing at the bottom
Fix: Pause for a moment in the stretch before rising.
Cutting the bottom short
Fix: Let the heel sink below the step to a full stretch on every rep.
Bending the knee to drive up
Fix: Keep the working knee straight and rise using only the ankle.
Rolling onto the little toes
Fix: Push through the big-toe side of the foot on the way up.
Pulling up with the hand
Fix: Rest your fingertips lightly on the wall for balance only.
What the research says
Rehab & prehab · first choiceEndurance · first choiceMuscle growthGeneral fitnessSport performance
- Straight knees — In a 12-week trial, standing calf raises grew the gastrocnemius far more than seated calf raises (about 9–12% vs 1–2%), while the soleus grew similarly with both.
- The stretched range — In an 8-week trial, calf raises through the bottom, stretched part of the range grew the gastrocnemius more than the top part, and in one part of the muscle more than full-range raises.
- Load and reps — Research comparing loads finds muscle growth is similar across a wide range of loads when sets are taken close to failure. Standing on one leg puts about twice the load on each calf compared with two legs, and many lifters add a dumbbell once sets become very long.
- Effort — Studies show sets that finish a few reps short of failure capture most of the growth benefit, and true failure adds only a small extra return.
- Frequency — Training a muscle about twice a week has been associated with more growth than once a week.
Swap it mid-workout
With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.
Log the single leg calf raise in VALDA, with these cues one tap away while you train and your history for it in one place.
General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.