Osteoarthritis risk increased by high exercise levels

30 Nov 2009 - Posted by the Editorial Team

Men and women in middle age who exercise on a regular basis may be more likely to suffer from osteoarthritis.

This is the finding of researchers at the University of California, US, whose findings established a link between levels of physical activity and the frequency and extent of knee damage.

Some 236 participants were involved in the study, all of whom were tested using the Physical Activity Scale for the Elderly questionnaire.

"The prevalence of the knee abnormalities increased with the level of physical activity," explained research fellow Dr Christoph Stehling.

"In addition, cartilage defects diagnosed in active people were more severe."

Dr Stehling went on to say that high impact, weight-bearing physical activity may have a negative impact on cartilage health, with running and jumping among the most obvious examples.

By comparison, Dr Stehling explained, swimming and cycling, both low-impact activities, may protect diseased cartilage.

Other risk factors for osteoarthritis include muscle weakness, age and obesity, while a family history and an injury to a joint can also be contributing factors.

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