Having joint replacement surgery doesn't always mean the end of exercising. Two new studies find that life after replacements and resurfacing can include physical activity — even the strenuous kind…

In a study presented at the recent annual meeting of the American Academy of Orthopaedic Surgeons in New Orleans, researchers compared two groups of people who went through total knee replacement surgery at the Mayo Clinic…

"We hypothesized that high-impact activities would not increase the risk of implant failure, but we did not foresee that such activities might actually improve clinical results," said lead author Dr. Sebastian Parratte, a Mayo Clinic orthopedic surgeon, in a news release.

LA Times, by Jeannine Stein, 3/2010

Tags: Dr. Sebastian Parratte, exercise, joint replacements, Orthopedics