Building finger strength without getting hurt

Strong fingers, slow tendons

Finger strength is the thing most climbers want more of, and for good reason. On hard, holdsy climbing it is often the limiting factor. The trouble is that fingers are also the part of you most likely to get injured, and the gap between training them and hurting them can be alarmingly small. The reason is biology. Your muscles get stronger fairly quickly, but the tendons and the small pulleys that hold them to the bone adapt far more slowly. Train as if your tendons keep pace with your muscles and you are writing a recipe for a strain.

So the whole game of finger training is patience. The climber who adds a little, consistently, for a year ends up stronger and uninjured than the one who hammers their fingers hard for a month and then spends two months recovering from a tweaked pulley.

Are you ready to hangboard?

The first honest question is whether you should be hangboarding at all yet. If you have been climbing for less than roughly a year, you almost certainly do not need a hangboard, because simply climbing a lot still builds your fingers plenty and is far more enjoyable. Dedicated finger training earns its place once general climbing has stopped delivering finger gains and your fingers are clearly your limiting factor on the routes you want.

If you are newer than that, the better path is more climbing on varied holds, plenty of it, with proper warm-ups. Save the hangboard for when you have the base and the body awareness to use it sensibly.

How to start, sensibly

When you do begin, the principles matter more than any specific protocol.

• Warm up thoroughly first. Never hang cold. Climb easy, get the fingers progressively loaded, and only then get on the board.
• Use the half-crimp or open hand, not the full crimp. The full crimp loads the pulleys hardest. Train on an open hand and a half crimp, which are safer and carry over well.
• Start with big holds and short hangs. Begin on an edge you can hold comfortably, with hangs of around seven to ten seconds and long rests between, two minutes or more. You want each hang to be hard but well within control, never a desperate fight to the last second.
• Add load slowly. Progress by tiny increments, week to week, not session to session. If you can choose, prefer adding a little weight on a comfortable edge over moving to a much smaller, sharper one.
• Train fingers fresh, not fried. Hangboard near the start of a session after warming up, not at the end when your fingers are already wrecked from climbing. Tired fingers under load is how people get hurt.

Two short sessions a week is plenty for most people. Fingers need recovery days between hard loading, so resist the urge to do it every time you train.

The warning signs to never ignore

This is the part to take seriously. Finger tendons and pulleys do not give you much warning, and the signals they do give are easy to talk yourself out of.

Stop immediately if you feel a sharp pain in a finger, anything that pinches or stabs rather than the dull ache of effort. A pop or a snapping sensation in a finger is an emergency, get off the wall at once. Swelling, tenderness over a specific spot on the finger, or pain that lingers into the next day are all signs you have done too much. None of these are things to climb or train through.

The hardest discipline in finger training is doing less than you are capable of on the day, so that you can keep doing it week after week. Strong fingers are built over years, not weeks, and every session you finish feeling like you had more in the tank is a session that adds up rather than setting you back. Keeping a simple log of your hangs, the loads and how they felt, makes it much easier to progress gradually and to spot the warning signs before they become injuries.