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.
Bowling, Boys Lacrosse Set Fan Records
August 17, 2018
By Geoff Kimmerly
Second Half editor
Two sports repeated in setting postseason attendance records during the 2017-18 school year, as 1,390,590 total fans attended Michigan High School Athletic Association postseason competitions for which attendance is recorded.
The MHSAA Bowling Tournament – including Regionals and Finals for girls and boys, set an attendance record for the seventh consecutive season this past winter with 14,422 fans. Boys lacrosse, which also begins postseason play at the Regional level, set a record for the second straight season this spring with 12,759 fans – including a record 7,344 for Regional games.
The MHSAA annually tracks attendance for all sports except golf, skiing and tennis – for which admission typically is not charged.
The 2017-18 grand total of just under 1.4 million fans was a decrease of 6.8 percent from 2016-17. However, a couple of circumstances likely factored into the majority of that decline.
The first two weeks of 11-player football playoffs generally are among the highest-drawing events every school year – and last year’s saw a 19 percent decrease from 2016-17, as Pre-District games were played in unseasonably frigid weather across the Lower Peninsula and District Finals were played amid storms in many parts of the state.
Also, the Individual Wrestling Finals saw a 33 percent decrease in attendance after moving to Ford Field in Detroit from its previous home at The Palace of Auburn Hills. However, that decrease is misleading; the event went from three days and five sessions (with tickets required for each session) at The Palace to a two-day, three-session event at Ford Field. The average attendance per session this past winter actually increased by 892 fans from 2016-17.
Despite the District level decreases, football remained the highest-drawing tournament sport sponsored by the MHSAA, with 352,946 fans attending during the 2017 Playoffs including 60,435 combined for the 11 and 8-Player Finals – the most at that level of the tournament since the 2009 season. The MHSAA added a second division of 8-player playoffs last fall; however, that additional championship game contributed only a small amount to the overall 68-percent increase in attendance from the 2016 Finals.
Boys Basketball drew the second-most fans in 2017-18 – 311,494 – keyed in part by a 5-percent increase at the Regional level. Girls Basketball remained the most highly attended girls sport with 158,546 fans – including 104,243 at the District level, the second-highest total at that level of the tournament since 2009-10. Volleyball was the second-highest attended girls sport this past school year, with 105,414 fans making for an overall increase of nearly 3 percent from the 2016-17 tournament – with increases in attendance enjoyed at the District, Regional, Quarterfinal and Finals levels.
Two more girls sports saw increased attendance in 2017-18. Girls Swimming & Diving enjoyed increases at both the Diving Qualification and MHSAA Finals levels for a total of 4,946 fans – a 7-percent increase from 2016-17. Girls Gymnastics also enjoyed increased attendance at both levels of its postseason for a grand total of 2,314 fans – the most for that sport since 2002-03 and an increase of 7 percent as well from the previous season.
Two more sports also set MHSAA Finals records. The Softball Finals, held in conjunction with the Baseball Finals at Michigan State University, drew 6,860 fans to set a record for the second straight season (and baseball drew its most Finals fans since the 2006 season). The Team Wrestling Finals – contended for the first time at Wings Event Center in Kalamazoo – enjoyed a 19-percent increase from 2016-17 with an audience of 9,469 fans that broke the record set at the conclusion of the 2004-05 season.
Also of note:
• Although girls lacrosse saw a slight dip in overall attendance to 5,538 fans this spring, that total still was the third-highest since the MHSAA began sponsoring a postseason tournament for the sport in 2004-05.
• Boys Soccer Districts drew 15,438 fans, the sport’s fourth straight increase at that level and the most to watch Districts since 2008-09.
• The Girls & Boys Cross Country Finals drew 10,445 fans, an increase of nearly 3 percent and the highest total in six seasons.
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 1.4 million spectators each year.