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.
MHSAA-Supported Bill Allowing School Retirees to Continue Employment Signed Into Law
By
Geoff Kimmerly
MHSAA.com senior editor
October 10, 2023
Recent public school retirees including those serving as coaches, game officials and in other sports-related roles will be able to continue doing so for limited compensation after the signing of a bill Tuesday, Oct. 10, by Michigan Governor Gretchen Whitmer allowing those retirees to receive limited compensation without having their retirement benefits affected.
Public Act 147 (PA 147) amends PA 184, which was signed into law July 25, 2022, and required a retiring public school employee to wait nine months before being rehired – effectively sidelining several longtime coaches, officials and others who play substantial roles in school sports all over the state.
PA 147 instead allows recent retirees to work for a public school district during the first six months of retirement as long as the individual earns less than $15,100 during a calendar year. The great majority of coaches, officials and others who contribute to school sports – public-address announcers, team bus drivers, scoreboard operators and other game managers, for example – earn far less compensation than that maximum allowed with this bill.
Soon after the signing of PA 184 during the summer of 2022, the Michigan High School Athletic Association met with the state’s Office of Retirement Services and several legislators seeking ways to allow public school retirees to remain employed in athletics without that nine-month pause, or without having to work and not be paid. (Prior to PA 184, retirees were required to be detached from a school district for only 30 days before being rehired at less than 30 percent of their compensation at the time of retirement. This allowed most retirees to do so at the end of a school year and then return after 30 days to continue coaching, officiating, etc.)
MHSAA Executive Director Mark Uyl and Assistant Director Cody Inglis, and Brighton athletic director John Thompson – who serves on the MHSAA Representative Council – all testified in support of PA 147, which was sponsored by 13 legislators from the Michigan House of Representatives and introduced by Rep. Matt Koleszar from Plymouth.
"This new public act fixes the biggest MHSAA concern that recent retirees could not return to coach or officiate during their bona fide retirement period," Uyl said. "Our schools desperately need these experienced and knowledgeable people to continue contributing to athletics, and we're pleased that they'll have that opportunity."
The MHSAA is a private, not-for-profit corporation of voluntary membership by more than 1,500 public and private senior high schools and junior high/middle schools which exists to develop common rules for athletic eligibility and competition. No government funds or tax dollars support the MHSAA, which was the first such association nationally to not accept membership dues or tournament entry fees from schools. Member schools which enforce these rules are permitted to participate in MHSAA tournaments, which attract more than 1.3 million spectators each year.