Lattice Blog

Training Series: Strength & Power

This series of articles was originally written for UKC, offering information and insight into different aspects of training. In this blogpost, Tom talks about strength and power; why it matters, how to train strength and power respectively, and how to structure your training. Find the original UKC article here.

Climbers all over the world have been searching out the ability to increase their strength and power for decades. We associate them with the highest levels of performance and “limit” climbing, but what are they and why do they matter?

Strength is commonly defined as the ability to exert force against resistance (whether that’s your own bodyweight or against an object) and in the simplest sense, it should be considered the maximal force applied in a single contraction. This of course leads to lots of questions about how you measure it, how long you measure it for and what muscles are most specific to climbing performance.

Power, on the other hand, is a slightly more complex facet of muscle performance as it includes a time component. Unlike strength, it measures the velocity component of a muscle contraction (and joint angle change) and therefore high power levels are a function of both force and speed. Interestingly, the relationship between strength and velocity is one that means maximal power is seen at approximately one third of max strength and also one third of max speed. Cool huh?!

What does this mean for you as a climber though?

Climbing at a very high intensity is often limited by the ability of the forearm to maintain a static grip position (hands not opening out). If you have high finger strength, then the forearm is able to resist high forces threatening to open grip positions.

Your ability to exert power will be affected by the level of strength that you show. Also, if you have low power levels but high strength, you may well feel great on static/slow movements, but struggle on dynamic sequences. It should be noted that this is highly simplified as skill levels can also greatly affect this.

Note on campusing: we strongly recommend that campus exercises are used by adults only. We see the greatest benefits in more advanced adult climbers and any intermediate climber wishing to try these methods should seek the advice of someone they trust. In almost all circumstances, juniors should stay well away from a campus board for multiple reasons.

How to train strength

This session is one that sets the climber the task of climbing 3 reps of 6 different boulder problems. The intensity is set at 1-2 grades under your maximum boulder grade.

6 sets of 3 reps.

Each rep is a hard boulder problem

Rest between each rep is 3 minutes

Rest between each set is 3 minutes*

Grade is 1-2 grades below maximum**

*It’s completely acceptable to increase rest to improve recovery for next boulder

**We advise that you do this session on known boulder problems so technical limitations are reduced

Focus points

  • The grade must be close to your maximum grade to make gains in strength and therefore you should train when fresh.
  • Aim for “basic” style problems so that you’re not tempted to “trick” your way around difficulties.
  • For all strength sessions, it’s important that form is good throughout and that session quality is high. If you suffer loss of either, stop for the day and make some adjustments for your next session.

How to train power

Firstly, it should be noted that power sessions will often have both a strength and power stimulus to them and your primary focus should be to identify what muscle group you’re trying to develop power in. For example, a campus session may develop finger “strength” but upper body “power” during the session.

The focus of power workouts is to ensure that there is a heavy speed element to the training protocols and that the session is relatively short. It’s also extremely important that power workouts are completed when fresh and well warmed up and never at the end of sessions.

4 sets of 3 reps.

Each set is 1 boulder problem repeated three times

Rest between each rep is 3 minutes

Rest between each set is 3 minutes

Grade is 5-6 grades below your maximum – if it’s at your maximum you’ll find it very hard to include a significant speed element!

Focus points

  • The grade must be a moderate bouldering grade for you and feature holds that are comfortable in size and shape.
  • You should aim to feel “powered out” by the end of the session and failure is only occurring in the last few reps, if at all.
  • Aim to create big moves which feel within your comfort zone when testing the problems.

Structure for Boulderers vs Route Climbers

These two forms of training are beneficial to both boulderers and route climbers, but timing of strength and power should be separated depending on your training cycles.

Both route climbers and boulders should focus on strength training during “base” periods of their training seasons as this form of training takes the longest to make adaptations, but also has a significant effect on power training later on. Power training is then used as a method for getting into peak physical shape for a goal and should be introduced 2-6 weeks beforehand (depending on the athlete and training history). One point to note, is that power training has a significant skill element to it, so if you’re a climber who has long-term lacked power, it may be an element of your training you wish to look at more regularly.

As a very rough guide, we would expect both boulderers and route climbers to do only two sessions of their respective form of strength or power training per week and anyone considering more should speak to a coach or a trusted individual. This training is easy to over-do!


  • Strength training will increase your maximal force (of the muscle trained) and improve the capacity of that muscle to subsequently exhibit high power levels.
  • Power training is used to improve force applied at speed in the upper-body and forearms. Exactly the same methods can be applied to the lower body.
  • Power training is a protocol that brings about peak physical form in route climbers and boulderers.
  • Your training should take into account your training history, injury profile and goals. Importantly, both boulderers and route climbers should use strength and power training, especially those who are “weak for the grade.”

1 response to “Training Series: Strength & Power

  1. Hello Lattice,
    My name is Max Elliott and I’ve been climbing for 3 years now, and at the moment my climbing ability outdoors is v11 and it’s getting to the point where I want to do a seasonal training plan but modifying it a little by only doing 4 week power and strength phase and 4 week power endurance and endurance training but I’m a little lost on how often I should climb a week only having power and strength sessions. Normally I climb 5-6 days a week with every other day being rehab day to prevent injury. I’ve been looking all over reading books and websites and can’t find how I should structure the amount of strength and power sessions I should do, I would really like hear your feedback.
    Thank, you!

Leave a Reply

Your email address will not be published. Required fields are marked *