Clients sometimes come in with pain in knees and/or joints and/or shoulders and question whether intensely strength training might not be good that day, however they then go out and walk, snowshoe, hike, cross country ski or play various sports. My opinion is that they are confusing activities that are not intense on muscles but high force on joints, with an activity that is intense for muscles but relatively very kind to their joints. Strength training will not replace lost cartilage to a joint but keeping the joint's surrounding musculature as strong as possible will help to keep it functional.
Clients sometimes come in with pain in knees and/or joints and/or shoulders and question whether intensely strength training might not be good that day, however they then go out and walk, snowshoe, hike, cross country ski or play various sports. My opinion is that they are confusing activities that are not intense on muscles but high force on joints, with an activity that is intense for muscles but relatively very kind to their joints. Strength training will not replace lost cartilage to a joint but keeping the joint's surrounding musculature as strong as possible will help to keep it functional.