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.

Novi Principal, Past MHSAA Council VP Carter to Receive Inaugural Hampton Award

By Geoff Kimmerly
MHSAA.com senior editor

March 4, 2024

Nicole Carter grew up in a family of educators, aspired to become one herself, and has dedicated her career to providing opportunities in all facets of education – including educational athletics – to all students through her vision and inspiration. To celebrate Carter’s continuing contributions especially to underrepresented groups in school sports, she has been selected as the inaugural honoree of the Michigan High School Athletic Association’s Nate Hampton Champion of Progress in Athletics Award.

The Hampton Award was created by the MHSAA’s Representative Council to honor Nate Hampton, who retired in 2021 after serving in education and educational athletics for 50 years, including the last 32 years as an MHSAA assistant director. Honorees have championed the promotion and advancement of opportunities for women, minorities and other underrepresented groups within interscholastic athletics, while serving as an administrator, coach, official, educator or school sports leader in Michigan.

Carter, in her 10th year as principal at Novi High School, was selected as the first recipient of the Hampton Award by the Representative Council at its Fall meeting in December and will be recognized during the Boys Basketball Finals on March 16 at Michigan State University’s Breslin Center.

“As an advocate and strong proponent of athletics, I understand wholeheartedly the impact they have on the whole child,” Carter said. “This is a surreal moment for me, and I’m truly honored to be the recipient of this award, keeping in mind the impact Nate Hampton had on athletics in the state of Michigan over several decades – it’s very humbling.”

Carter began at Novi in 1999, teaching for eight years before moving into administration as dean of student activities for three years and then assistant principal for three. She became principal with the 2013-14 school year and leads a staff of 140 in educating more than 2,100 students.

While leading one of the state’s largest and most highly-regarded high schools – and one of Michigan’s most diverse, with her students’ families speaking more than 70 languages at home – Carter has provided her expertise through several more efforts. She served four years on the MHSAA Representative Council, from 2019-23, and as its vice president for the 2022-23 school year. She has served on the MHSAA’s Sports Medicine Advisory Committee, and volleyball and classification committees, and presented at the annual Women In Sports Leadership Conference on social and emotional skill building. She also has served as president of the Kensington Lakes Activities Association.

“Nicole Carter serves with the mindset of providing opportunities for all students as the principal at one of the largest and most diverse high schools in Michigan, and students statewide benefitted from her leadership during her time as part of the Representative Council and Executive Committee,” MHSAA Executive Director Mark Uyl said. “No matter the topic or details of a situation, Nicole looks at it from a rational point of view in deciding what’s best for kids. She continues to emphasize that academics must be the highest priority in a student’s education, and she can provide that perspective with a wider lens as someone with a strong background in and understanding of the role of athletics.”

Service through education is a tradition in Carter’s family. Her grandfather Charles Butler Nuckolls served as a principal in Kentucky for 40 years prior to desegregation. Her father Gene Nuckolls also spent 40 years in education, including as principal of Saginaw High School and assistant superintendent for Saginaw Public Schools, while Carter’s mother Shirley Nuckolls dedicated 40 years as a teacher, assistant principal and guidance counselor within the Saginaw district.

Carter’s selection for the Hampton Award is something of a full-circle moment for her family. Gene Nuckolls hired Hampton as supervisor of athletic and physical education for Saginaw Public Schools in 1987. 

Carter was named Michigan High School Principal of the Year in 2022 by the Michigan Association of Secondary School Principals (MASSP) and Michigan Association of Student Councils and Honor Societies (MASC/MAHS). She additionally has been recognized as a Diversity Champion as part of The Community House honor roll recognition program, and was selected as an African American Educator of the Year by the Michigan Lottery in 2016. She also was recognized in 2017 by the Oakland County Coordinating Council Against Domestic Violence.

Drawing from her athletic background and perspective, Carter noted that she strives to be a coach and mentor – as well as a teacher of teachers and students as principal at her school.

She also has continually looked to create inclusive opportunities during her tenure, citing Novi’s Special Olympics Unified Sports program as a significant point of pride for the school.  

“I always lead from the lens of equity and inclusion and accessibility, and I’m always trying to identify opportunities for students to find their place,” Carter said. “Ensuring every single student in our school has a sense of belonging is one of my top priorities as principal.”

Carter is a 1993 graduate of Saginaw Heritage, where she played basketball, soccer and softball. She earned bachelor’s degrees in political science, with a minor in English, and secondary education from Michigan State University in 1999 and her master’s in curriculum and instruction from MSU in 2001. She also has an educational leadership degree from Oakland University. Carter taught civics/economics and U.S. government and politics at Novi before moving into administration.

PHOTOS courtesy of Novi Community School District.