Study: Single-Sport Athletes Injured More

November 3, 2016

A study conducted by the University of Wisconsin School of Medicine and Public Health and funded by the National Federation of State High School Associations (NFHS) Foundation revealed that high school athletes who specialize in a single sport sustain lower-extremity injuries at significantly higher rates than athletes who do not specialize in one sport. 

The study was conducted throughout the 2015-16 school year at 29 high schools in Wisconsin involving more than 1,500 student-athletes equally divided between male and female participants. The schools involved in the study represented a mixture of rural (14), suburban (12) and urban (3) areas, and enrollments were equally diverse with 10 small schools (less than 500 students), 10 medium schools (501-1,000 students) and nine large schools (more than 1,000 students).

Athletes who specialized in one sport were twice as likely to report previously sustaining a lower-extremity injury while participating in sports (46%) than athletes who did not specialize (24%). In addition, specialized athletes sustained 60 percent more new lower-extremity injuries during the study than athletes who did not specialize. Lower-extremity injuries were defined as any acute, gradual, recurrent or repetitive-use injury to the lower musculoskeletal system.

“While we have long believed that sport specialization by high school athletes leads to an increased risk of overuse injury, this study confirms those beliefs about the potential risks of sport specialization,” said Bob Gardner, NFHS executive director. “Coaches, parents and student-athletes need to be aware of the injury risks involved with an overemphasis in a single sport.”

Among those who reported previously sustaining a lower-extremity injury, the areas of the body injured most often were the ankle (43%) and knee (23%). The most common types of previous injuries were ligament sprains (51%) and muscle/tendon strains (20%).

New injuries during the year-long study occurred most often to the ankle (34%), knee (25%) and upper leg (13%), with the most common injuries being ligament sprains (41%), muscle/tendon strains (25%) and tendonitis (20%).

In addition, specialized athletes were twice as likely to sustain a gradual onset/repetitive-use injury than athletes who did not specialize, and those who specialized were more likely to sustain an injury even when controlling for gender, grade, previous injury status and sport.

Thirty-four (34) percent of the student-athletes involved in the Wisconsin study specialized in one sport, with females (41%) more likely to specialize than males (28%). Soccer had the highest level of specialization for both males (45%) and females (49%). After soccer, the rate of specialization for females was highest for softball (45%), volleyball (43%) and basketball (37%). The top specialization sports for males after soccer were basketball (37%), tennis (33%) and wrestling (29%).

The study, which was directed by Timothy McGuine, Ph.D., ATC, of the University of Wisconsin, also documented the effects of concurrent sport participation (participating in an interscholastic sport while simultaneously participating in an out-of-school club sport), which indicated further risk of athletes sustaining lower-extremity injuries.

Almost 50 percent of the student-athletes involved in the survey indicated they participated on a club team outside the school setting, and 15 percent of those individuals did so while simultaneously competing in a different sport within the school. Seventeen (17) percent of the student-athletes indicated that they took part in 60 or more primary sport competitions (school and club) in a single year. Among those student-athletes in this group who sustained new lower-extremity injuries during the year, 27 percent were athletes who specialized in one sport.

The student-athletes involved in the study were deemed “specialized” if they answered “yes” to at least four of the following six questions: 1) Do you train more than 75 percent of the time in your primary sport?; 2) Do you train to improve skill and miss time with friends as a result?; 3) Have you quit another sport to focus on one sport?; 4) Do you consider your primary sport more important than your other sports?; 5) Do you regularly travel out of state for your primary sport?; 6) Do you train more than eight months a year in your primary sport? 

Although some sports (field hockey, lacrosse) are not offered in Wisconsin and were not included in the study, the study concluded that since specialization increased the risk of lower-extremity injuries in sports involved in the survey it would also likely increase the risk of injuries in sports that were not a part of the study.

105 Schools Recognized As HEARTSafe

October 19, 2016

The Michigan Departments of Health and Human Services (MDHHS), and Education (MDE); American Heart Association (AHA); Michigan High School Athletic Association (MHSAA); and Michigan Alliance for Prevention of Sudden Cardiac Death of the Young (MAP-SCDY) have awarded 105 schools in Michigan with the MI HEARTSafe School designation which recognizes schools that are prepared to respond to cardiac emergencies.

“Many sudden cardiac deaths that claim the lives of children and young adults could be prevented through screening, detection, and treatment,” said Dr. Eden Wells, chief medical executive of MDHHS. “Appropriate medical response within three to five minutes is crucial for increasing the chance of survival, which is why I’m pleased to see so many of our schools taking vital measures to prepare and address this health issue.”

In order for a school to receive a MI HEARTSafe School designation, it must perform at least one cardiac emergency response drill per year, have a written medical emergency response plan and team, have current CPR/AED certification of at least 10 percent of staff, 100 percent of head varsity coaches, and 50 percent of P.E. staff; have accessible, properly maintained and inspected AEDs with signs identifying their location; and ensure pre-participation sports screening of all student athletes using the current physical and history form endorsed by the Michigan High School Athletic Association.

“We are so proud to support Michigan’s HEARTSafe schools,” said State Superintendent Brian Whiston. “Ensuring schools are prepared for sudden cardiac emergencies through planning, training, and life-saving AEDs is an important part of having safer learning environments for students, staff, and the community.”

Between 2003 and 2012 in Michigan, there were 2,590 young individuals between 1 and 39 years of age who died of sudden cardiac death.  Of those, 214 were between 5 and 19 years of age. This is the third year of the MI HEARTSafe Schools program in Michigan. In the first two years of the initiative, 162 schools were previously designated as MI HEARTSafe Schools and prepared to help reduce the number of sudden cardiac deaths in our youth.

Public Act 12 of 2014 requires all schools (grades kindergarten to 12) to have a cardiac emergency response plan in place. This MI HEARTSafe School designation recognizes the 267 school buildings that have taken steps above and beyond to prepare to respond in the event of a cardiac emergency, and is awarded for a period of three years. Click for the list of designated schools.

Schools that meet all of the requirements will be able to apply for the MI HEARTSafe School designation each year. Click for information about the MI HEARTSafe Schools program.