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Archive for the ‘sports medicine’ Category

October 15, 2009

More MRI Machines Lead To More Back Surgeries »

Stanford University researchers have found that regions with high concentrations of MRI machines also have increased rates of back surgery among patients who present with new back pain. Is there a problem with this? Well, perhaps, especially since we know that increased surgery rates doesn’t necessarily improve patient outcome. In fact, surgery has its risks and often times will not completely cure back pain. Between 2000 and 2005, the MRI availability in the U.S.  more than tripled, from 7.6 to 26.6 machines per 1 million people. Each machine costs more than $2 million and one low-back scan costs $1,500. Increased rates of scans and surgeries increase the total health care dollars spent on treatment of back pain, one of the most common reasons for physician visits today. [via Medical News Today]

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May 27, 2009

Exercise Boosts Mood Longer Than Previously Thought »

A recent study presented at the 56th annual meeting of the American College of Sports Medicine (ACSM) suggests that the mood enhancing effects of exercise can last longer than an hour, as previously thought. Compared with a control group that did not exercise, the survey group of healthy men and women who exercised reported enhanced moods up to 12 hours post-exercise. volunteers performed exercise at 60% of aerobic capacity, which indicates that moderate-intensity exercise is enough to boost mood. Because these effects appear to fade after 12 hours, the researchers are recommending daily exercise. Current ACSM guidelines recommend at least 150 minutes of moderate-intensity exercise each week, which can be achieved in 30 minute segments five days a week.

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April 20, 2009

Knee Laxity May Vary With Menstrual Cycle »

University of Calgary researchers say there may be a connection between menstrual cycles and the laxity of a woman’s knee joint. Reporting in The American Journal of Sports Medicine the researchers noted that although knee laxity varied with the different phases of the menstrual cycle, women appear to have some periods of greater knee laxity. The cause of this relationship is unclear, but, this may be a factor in why female athletes are two and eight times more likely to injure their ACL knee ligaments than men.

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