Standing Soleus And Achilles Stretch
Standing with one foot behind the other, you bend the back knee while keeping the heel down, targeting the soleus muscle and Achilles tendon lower in the calf than a straight-leg stretch does. It's a simple, equipment-free stretch useful before or after running, calf training, or any activity where ankle mobility matters.
Why it works
The calf is made of two main muscles stacked on top of each other: the gastrocnemius, which crosses the knee, and the soleus underneath it, which doesn't. Keeping the back knee straight mostly stretches the gastrocnemius, but bending that knee slackens it and shifts the stretch down into the soleus and the Achilles tendon instead. That's useful because tightness lower in the calf can limit ankle mobility in a squat or a lunge even when the upper calf feels fine, so this variation covers a spot the straight-leg version misses.
Set up
- Face a wall and place your hands on it at shoulder height.
- Step one foot back, keeping both feet pointed forward.
- Keep the heel of the back foot flat on the floor.
How to do it
- Bend the back knee while keeping the heel pressed into the floor.
- Lean your hips slightly forward until you feel a stretch lower in the back calf, near the Achilles tendon.
- Hold the position without bouncing.
- Release and switch to stretch the other side.
- Repeat for the desired number of holds per leg.
Form cues
- Back heel stays flat on the floor throughout.
- Bend comes from the back knee, not from arching the lower back.
- Stretch should feel low in the calf, closer to the ankle.
- No bouncing, just a steady hold.
Breathing: Breathe slowly and steadily throughout the hold, avoiding the urge to hold your breath.
Common mistakes
Letting the back heel lift off the floor as the knee bends.
Fix: Shorten your stance slightly so the heel can stay planted while you bend the knee.
Bouncing in and out of the stretch instead of holding it steady.
Fix: Ease into the position and hold it still; bouncing doesn't improve flexibility and can aggravate the tendon.
Keeping the back knee too straight, which turns this into a gastrocnemius stretch instead.
Fix: Bend the back knee enough that you feel the stretch shift lower, closer to the Achilles.
How to program it
- Hold for 20 to 30 seconds per side, repeating 2 to 3 times.
- Useful after running, calf raises, or any lower-body session where the calves worked hard.
- Can be done daily, since it's a gentle, unloaded stretch rather than a fatiguing exercise.
- Pair it with the straight-leg calf stretch to cover both calf muscles in the same routine.
Safety notes
- Stretch to a point of mild tension, never sharp pain, especially near the Achilles tendon.
- Ease off if you feel any pinching or sharp discomfort rather than a normal stretch sensation.
Exercise profile
- Force
- Static
- Mechanics
- Isolation
- Category
- Stretching
Frequently asked questions
How long should I hold the standing soleus and Achilles stretch?
Hold for 20 to 30 seconds per side, repeating 2 to 3 times, without bouncing.
What's the difference between this and a regular calf stretch?
A straight-leg calf stretch targets the gastrocnemius, the upper calf muscle that crosses the knee. Bending the back knee here slackens that muscle and shifts the stretch down into the soleus and Achilles tendon instead, covering a spot the straight-leg version misses.
Why does my Achilles feel tight even after stretching my calves normally?
A straight-leg calf stretch mostly targets the upper calf and can leave the lower soleus and Achilles tight. Bending the back knee while keeping the heel down reaches that lower area more directly.