American actress Jane Fonda has slammed reports that her famous "workouts" were the cause of her recent knee replacement surgery.
Fonda, 71, who insists she suffers from a hereditary form of arthritis, had surgery for her left knee, and critics have claimed that it would not have been necessary had it not been for her excessive exercise regime.
An online report suggested the fitness fanatic's famous Jane Fonda Workout programmes, which became cult viewing in the late 1970s and 1980s, were to blame.
But the actress has insisted that bad genes were the real cause, and not exercising.
"A recent article in the Daily Mail (newspaper) reports that my knee replacement surgery was the result of years of repetitive pounding from doing my Jane Fonda Workout programs," Contactmusic quoted her as writing in a post-surgery blog.
"Wrong! It is a result of osteoarthritis which my father, Henry Fonda, also suffered from, as does my brother, Peter, who may need hip replacement soon.
"You never saw them doing the Jane Fonda Workouts.
"My family's osteoarthritis (the gradual disappearance of joint cartilage) is a matter of genes, not working out," she wrote.
The actress adds that she's amazed her fitness routines were singled out for blame, considering she has famously abused her body in other ways throughout her life.
"I am sure that my 25 years of eating disorders didn't help the condition, and perhaps my decade of running made it worse. But sooner or later I would have needed joint replacement even if I had been totally sedentary," she added.