
Consuming soft drinks may play a role in the progression of knee osteoarthritis, especially in men, finds a new research.
Knee osteoarthritis is caused by cartilage breakdown in the knee joint. Factors that increase the risk of knee osteoarthritis include obesity, age, prior injury to the knee, extreme stress to the joints, and family history. In 2005, 27 million Americans suffered from osteoarthritis, and one in two people will have symptomatic knee arthritis by age 85.
Researchers at Brigham and Women''s Hospital and Tufts Medical Center in Boston, and Brown University in Providence, R.I., looked at data on 2,149 participants in a multicenter osteoarthritis study. Participants were determined to have knee OA by X-ray. At the beginning of the study, each participant''s soft-drink consumption, not including sugar-free drinks was measured using a Food Frequency Questionnaire. The researcher followed up with the participants 12, 24, 36 and 48 months later to track their OA progression as measured by joint space change in their medial knee compartments. Body mass index (also called BMI) was also measured and tracked and data for men and women were analyzed separately.
The researchers concluded that men who drink progressively more soft drinks each week may see their knee OA worsen progressively as well. "Little is known about the course of disability over time in patients with osteoarthritis," says Bing Lu, MD, DrPh, the lead investigator in the study. "This study may offer the potential to identify a modifiable dietary risk factor for disease progression, enable evaluation of prevailing recommendations of healthy diet, and thus have potential public health implications."
It is unclear whether this problem is due to high-calorie soft drinks leading to excess weight burdening knees, or if there are other ingredients in soft drinks that contribute to OA progression.
Source: Newswise