Calf raises for runners: a plain-English guide

What a calf raise actually does

Stand up. Push through the balls of your feet until your heels lift. That's the whole move, and it's working the two muscles at the back of your lower leg: the gastrocnemius (the big, visible one) and the soleus (the flatter one underneath it), plus the Achilles tendon that connects them to your heel.

Those are the parts that take the load every single time your foot lands and pushes off. A lot of running niggles start with weak hips, glutes and calves rather than with running too much, which is why strength work earns its place next to the running itself.

Stronger calves and stiffer ankles mean a springier push-off and better form late in a long run, when most people start shuffling. It's also one of the easiest moves to do at home with no kit at all — a step or a stair edge is plenty. If you're new to all this, do runners need strength training is the bigger picture.

How to do one properly

Stand with the balls of your feet on a step and your heels hanging off the edge, holding something for balance. Rise up slowly, pause for a second at the top, then lower until you feel a gentle stretch in your calves. Slow and controlled beats fast and bouncy every time.

• Straight-leg version: works the gastrocnemius. Knees softly straight, rise and lower.
• Bent-knee version: bend your knees slightly and stay there. This shifts the work to the soleus, which is the one that fires when you run with a bent knee.
• Single-leg version: once two legs feels easy, do the same move on one leg. This is the real progression for runners.
• Weighted version: later on, hold a dumbbell or wear a loaded backpack. Add load only when the single-leg version feels controlled.

Reps and sets are simple: two or three sets of 8–15 reps, both straight and bent knee, once or twice a week. The cue to keep in your head is "squeeze at the top, pause one second, lower slowly". If you're counting, the lowering should take about twice as long as the rising.

Fitting it into your week

The aim is 20–40 minutes of strength work, twice a week — and calf raises are only a few minutes of that. You can do them on their own after an easy run, or as part of a slightly longer session with squats, glute bridges and planks.

Two things worth knowing. First, keep strength work away from the day before a key session if you can, so your legs are fresh for the running that matters. Second, if your legs are already trashed before a hard run, skip the heavy sets. Quality over load — you should finish feeling worked, not wrecked.

In the last couple of weeks before a race, drop to maintenance: a light set or two, nothing hard. The work is already in the bank, as what is tapering before a marathon explains.

Common mistakes

• Bouncing instead of controlling. If you're springing off your toes, slow down; the lowering is the part that builds strength.
• Half a range of movement. Go all the way up and all the way down, within comfort.
• Only doing the straight-leg version. Add the bent-knee version so both calf muscles get a turn.
• Going single-leg too soon. Two legs first, until it feels genuinely easy.
• Training through pain. A calf raise should feel like effort, not like a sharp pain in the calf or heel.

If anything hurts in a way that changes how you walk or run — calf, Achilles, heel or shin — stop and see a GP or a physio. Strength training is general conditioning, not treatment, and a physio can tell you exactly what's going on and what to do about it. If you're brand new to running, how to start running for beginners is a calmer place to begin.