HIIT Training


The non-linear programme has an optimal training load and recovery time with no opportunity to choose your own rest periods.

Improve your climbing with


Develop your local anaerobic fitness and maximum performance. By spending 40% or more of your training time in heart rate zone 4 – 5 you reach the right intensity to trigger muscle and vessel growth. Targeted muscle groups; the forearms! It will strengthen your recovery capacity and train your mental and neurological capacity. It will improve the efficiency of your other climbing sessions and, ultimately, it will raise your climbing level.

“After a test training session with Michel Kleinjan, training with a heart rate monitor, I finally realised that I was really training while climbing. Sharp, challenging, sweaty, keeping going while tired but finishing your workout.”
Irene Pieper
Trainer/coach and climber
For climbing and bouldering

HIIT Workouts

The human body is driven by different energy producing systems. When intensity increases and muscle contractions are repetitive and intense, lactate is produced, in the anaerobic pathway. This is what happens in climbing. During HIIT workouts the anaerobic system alternates with the aerobic system and are constantly changing through varying levels of intensity throughout the workout. It’s a very efficient way to develop your maximum performance and local anaerobic fitness.

Our app contains 660 H(F)IIT Workouts for lead climbing and bouldering, starting from level 5 up to 7c, to train endurance, power endurance and power. Each level has 30 chained workouts. You start with no. 1 in your chosen level. Do every workout twice and chain up to the next one. Get familiar with FITclimbing training and train systematically 1 or 2 times a week for 3 months and feel the changes. Get fitter and climbing will feel easier.

Learn more about FITclimbing H(F)IIT Workouts?
Check the ‘Tutorial HIIT’.


Improve local anaerobic fitness, maximum performance and enlarge recovery capacity.​