Joint pain, “crunching” in the knees, is common during strength training. The main reason here will be mechanical since heavyweights put pressure on the rubbing parts of the bone junction in the joint and thereby exert increased friction on the cartilaginous coating, which is designed to reduce this friction.
If strength training is a prerequisite for joint problems, which is called arthritis, then the logical medical recommendation seems to be to remove this very mechanical irritation. However, if we take into account that arthritis also develops for other reasons, in