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Serious Overuse Injuries Linked To Athlete's Socioeconomic Status

Those from families with private insurance more likely to be injured than those from families on Medicaid

Are athletes whose families can afford the high cost of today's increasingly specialized and expensive youth sports paying another price - in higher rates of injury?

The answer appears to be yes.

New research presented at the International Olympic Committee World Conference on Prevention of Injury & Illness in Sport in Monaco in April 2014 for the first time links overuse injury rates in young athletes with their socioeconomic status.  

Researchers at Loyola University Medical Center found that the rate of serious overuse injuries in athletes who come from families that can afford private insurance is a whopping 68 percent higher than the rate for lower-income athletes whose families have public insurance (Medicaid).

The findings are the latest to be reported as part of Loyola's 3-year study of overuse injuries and sports specialization.  The link between sports specialization and overuse injuries had been previously reported, but until now the link to socioeconomic status had not been identified. 

Doctor examining teenage girl's back

More likely to specialize

Qualifying an athlete as highly specialized if they answered Yes to three questions (Do you have a main sport? Have you quit all other sports to focus on one sport? and Do you spend more than eight months per year training and competing in a single sport?), Neeru Jayanthi, MD, and his Loyola colleagues also found that privately-insured young athletes were twice as likely as publicly-insured athletes to be highly specialized in one sport. 

"Intense specialization in one sport can cost thousands of dollars a year in equipment, fees, transportation, private lessons, etc.," said Jayanthi in presenting his findings in Monaco. "Having the financial resources to afford such costs may provide increased opportunities for young athletes to participate in a single sport."

Paying a price 

But along with the increased cost to their families, such athletes may be paying a personal price, added Lara Dugas, PhD, MPH, co-investigator on the study. "Young athletes with this type of training appear to be at greater risk for serious overuse injuries than those who have fewer financial resources," Dugas said.

The findings reported by Jayanthi are just the latest in an ongoing collaborative study of athletes ages 7-18 seen at primary care and sports medicine clinics at Loyola University Health System and the Ann & Robert H. Lurie Children's Hospital of Chicago.  

Researchers so far have enrolled 1,190 athletes in the study, including 1,121 for whom insurance status could be determined. Both institutions care for a socioeconomically diverse population represented in the study. The median income of the families of the young athletes was approximately $70,000; approximately 11 percent came from low-income neighborhoods, while 19 percent are on public aid.

Athletes completed surveys reporting training volumes (e.g. the amount of activity in a single training session), age of engagement in competitive sports, degree of specialization, etc. Researchers found that 30 percent of privately insured athletes were highly specialized in one sport (see box at right), compared with 18 percent of athletes who were publically insured. Thirteen percent of the privately insured athletes suffered serious overuse injuries, compared with 8 percent of publicly insured athletes.

Protective effect of free play?

The study also found that both publicly and privately insured athletes spent about 10 hours per week in organized sports. But there was a significant difference in the amount of time they spent in free play: 7.1 hours per week for publicly insured athletes, versus 5.2 hours per week for privately-insured athletes.

Free play includes unstructured activity such as pick-up basketball games and touch football. From this finding, researchers postulate that more unstructured free play may help protect athletes against serious overuse injuries, a hypothesis they hope to confirm with further study.

Previous research has identified numerous other advantages to such unstructured free play, with the American Academy of Pediatrics emphasizing in a 2007 report that "play (or some available free time in the case of older children and adolescents) is essential to the cognitive, physical, social and emotional well-being of children and youth,"  and that organized sports participation should not come at the expense of such play. 

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