Exercise relieved symptoms of arthritis in obese mice, even though they lost no weight from their efforts, a study finds.
Excessive weight has long been considered one of the culprits of osteoarthritis, since it puts additional strain on joints. While exercise has been shown in some studies to ease arthritis symptoms, others have found that for overweight and obese people, a fitness regimen can exacerbate the condition.
This study, published online Tuesday in the journal Arthritis & Rheumatism, found that although weight may heighten the risk of osteoarthritis, regular exercise could diminish joint problems by slowing its progression.
Researchers from Duke University worked with 20 8-week-old male mice, half of whom were fed a high-fat diet in which 60% of calories came from fat. The other half got their usual food, with 13.5% of calories from fat.