Climbers obsess over fingers and pull-ups, but at V6 and beyond the legs are often the actual limiter. The arms keep the climber on the wall; the legs drive the centre of gravity upward through rock-overs, heel hooks, and high steps. On steep terrain (45° overhangs and roofs) the legs even have to pull — heel hooks engage the hamstring and glute as if they were a third arm.
The good news: a few targeted exercises with the kind of equipment most climbers already own (dumbbells, a pull-up frame, stairs) cover almost all of it.
The four buckets
1. Pistol squats — high steps and rock-overs
Pistol squats (single-leg squats) are the closest gym analogue to a deep rock-over or a desperate high step where the climber has to stand up from one bent knee.
Progression: assisted pistol → bodyweight pistol → goblet pistol (holding a dumbbell at chest). 3 × 5 each leg, weighted, twice a week.
If pistols are inaccessible due to mobility limits, the substitute is Bulgarian split squats — the rear foot elevated on a step, dumbbells at the sides, weight stacked over the front heel. 3 × 8 each leg.
2. Posterior chain — heel hooks and overhanging climbing
When a climber throws a heel hook over a lip, the hamstring and glute do the work of an extra arm. The posterior chain is also what keeps hips close to the wall on steep terrain.
- Romanian deadlifts with dumbbells, 3 × 8. Focus on hinging at the hips and squeezing the glutes.
- Bulgarian split squats (also a posterior-chain exercise when done correctly).
- Nordic hamstring curls if there’s somewhere to anchor the feet. These are the ultimate bulletproofing exercise for aggressive heel hooks. Even partial reps with hand assistance from the floor are worthwhile.
3. Explosive power — dynos and deadpoints
At V7+, some moves require the climber to leave the wall briefly — a dyno or a deadpoint where the target hand catches at the apex of upward momentum. Pure strength doesn’t do this; rate of force development does.
- Jump squats with bodyweight, 3 × 8, maximum height. Light dumbbells optional.
- Explosive alternating lunges, 3 × 10 each leg.
- Broad jumps if there’s space.
Focus is on speed and height, not load. Heavy weight defeats the purpose.
4. Ankle stiffness — standing on micro-edges
The most overlooked aspect of climbing leg strength. If a climber stands on a 5 mm edge and the ankle collapses, the shoe pops off. All the leg-pressing strength in the world is wasted without a rigid platform to transfer it through.
- Single-leg calf raises on the edge of a stair, holding a heavy dumbbell. 3 × 10 each leg. Pause at the top, lower slowly.
When to train legs
Put leg work on climbing days, ideally right after the climbing session. This keeps the rest days as true rest days for the nervous system to recover. The nervous system is what fires hard at the wall; recovering it fully is more valuable than spreading work across more days.
What to skip
- Hours of running. It builds cardiovascular fitness but not the explosive force or ankle stiffness climbing needs.
- Leg presses on a machine. The hip and knee path is fixed; the stabilisers don’t get worked. Free-weight versions of the same movement transfer much better.