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.
Brush Up on the New Transfer Rule
July 18, 2019
By Rob Kaminski
MHSAA benchmarks editor
Eligibility under the new “sport-specific” transfer rule begins this coming fall after circulating extensively for nearly one school year.
Unless one of the stated 15 exceptions is met, participation during the 2018-19 school year determines eligibility for 2019-20.
The new rule adopted by the Representative Council at its May 2018 meeting has found support among most audiences. A transfer student’s eligibility in 2019-20 is based upon that student’s participation from this past school year (2018-19). It will be paramount for administrators and coaches to have awareness of the sports a transfer student participated in during the previous school year.
The long-standing 15 Exceptions to immediate eligibility, such as a full and complete residential change or a student moving between divorced parents by completing of an Educational Transfer Form, did not change.
One might call the rule on the way out “The Fourth-Friday Transfer Rule.” Under this old rule, when a student enrolled at the new school determined his or her eligibility. Under the new Sport Specific Transfer rule, what a student played in the previous season determines eligibility.
The Council passed a more lenient rule on the one hand and more restrictive on the other. The more lenient aspect is a change that finds a transfer student ELIGIBLE in any sport in which he or she did not participate in a game or a scrimmage in the previous school year.
The more restrictive portion tends to discourage students who change schools for sports reasons. A transfer student who did play a sport in the previous season – and who does not meet one of the 15 Exceptions – is NOT ELIGIBLE in that sport for the next season. If a student changes schools in mid-season, the student would be ineligible for the rest of that season in that sport and the next season for that sport.
Participation under this and other rules means playing in an interscholastic game or scrimmage after starting the 9th grade at any high school. It does not mean practice, but entering an interscholastic game, meet or scrimmage in any way. It also may involve more than one sport, so a three-sport athlete who does not have a residential change and transfers would be ineligible in those sports during the next school year – but eligible for any other sport. It also means a student cut from a team – one who never entered a scrimmage or game – may transfer and play without delay for that new school’s team. It may also mean that a student who meets one of the stated exceptions such as a residential change but enrolls in a school other than her or his school of residence, would have eligibility in sports not played in the previous year.
The new rule will tend to discourage students from changing schools for sports because they would be ineligible in any sport they have played in school the previous season for that sport. It will increase participation for some students who were otherwise not eligible under the current rule.
It is always best to contact school athletic directors who can connect with the MHSAA to verify eligibility prior to enrollment.
If the student’s new school requests in writing, the MHSAA Executive Committee may approve a waiver that reduces the period of ineligibility to 90 scheduled school days at the new school if the change of schools was for compelling reasons demonstrated with outside documentation having nothing to do with sports, curriculum, finances, and school demographics. The Executives Committee also has authority to approve immediate eligibility.