Training for Men Undergoing Androgen Deprivation Therapy.

The goal of this clinical trial is to evaluate the effects of a newly developed training concept on men with prostate cancer undergoing androgen deprivation therapy (ADT). The main questions it aims to answer are: * How feasible and safe is the new training concept? * How efficient is the training concept to counteract side effects caused by ADT? Researchers will compare the new training concept with usual care to evaluate how efficient the training concept is to counteract the ADT-related side effects. Participants in the intervention group will perform the new training concept twice weekly for 12 weeks. Participants in the control group will only receive usual care. All participants will visit the laboratory at baseline and after 6 and 12 weeks to measure the primary and secondary outcomes.

Detailed description of the training concept applied in the intervention: The two weekly training sessions will be separated by at least two days and supervised by appropriately trained exercise professionals at The Swedish School of Sport and Health Sciences. The training includes a 10 min warm-up followed by 3-4 sets of 8 maximal repetitions on the flywheel machine followed by 16-24, 20 s intervals on a Monark cycle ergometer. The intervals will be performed as 3 blocks with the intention to execute 8 intervals in each block. When a participant manages to perform all 3 blocks with 8 intervals in each block (a total of 24 intervals) the resistance will be increased by \~20 W. The rest period between the intervals will be set to 10 s and the rest between the blocks to 2 min. The starting workload of the intervals will be individually adjusted to \~115 % of the participant's power output at VO2peak. The total duration of a training session will be 30-40 min (including worm-up).