Knee replacement surgeries are done in high againg like 60+.
These categories of patients don't require high demanding activities.
Their age related requirements are completely full filled by post TKR .
In higher age patients don't want jerky moments or want to play hard games like cricket , foot ball etc but
if they want to play some games like golf , swimming, soft cycling , any indoor games or unlimited walk if feel comfortable then that can be done easily without any problem .