Hi. I know a person that is on a stationary bike every day for a couple of hrs, speed cycling. This person is 60 yrs old and has just had hip replacement surgery on the left side. The right hip will need to be replaced in the next two years. Bone on bone, the same with the left. The doctor and physical therapist have both given a nod to return to cycling. I believe it is the repetitive cycling on a daily basis for years that has caused the breakdown in the hip joints to begin with. Am I correct in my thinking on this? Thank you so much.
Hi, thank-you for providing the brief history. As per the history mentioned, the assumption can be made but cannot be Chat Doctor.  As the pathology of the hip joint may be something different like the RA hip or the OA hip. Also, due to cycling there is more of the strain at the knee joint and lest at the hip. The hip joint may have had some past injury as well. Now since he has undergone one side hip replacement, I feel he needs more of the Strengthening of the hip muscles. Which by doing cycling can not be achieved. Performing a proper hip strengthening exercises can help a lot to the muscular system and in turn help support the skeletal system as well. Regards Jay In