If you're bouldering in the V3-V4 grade range, the strength enhancing results that come as a result of campus board training will be greatly beneficial to your climbing performance. To begin, a conditioning phase of two sessions per week for four weeks will be sufficient.
Should I use a campus board?
Campus boards can be great for endurance training. Stronger climbers can go footless and train top-end strength endurance (aka: short resistance or anaerobic power), whereas climbers at a more intermediate level upward can train with feet on, and work both strength endurance and long endurance.
What does a campus board do?
Campus board training is a fantastic tool for improving your climbing. The idea is to repeat basic patterns of movement on a campus board to increase your upper body strength. It's not as straightforward as up and down though! ... Do you struggle at climbing dynamically and dead-pointing?