Page 6 - Summer 2020
P. 6

TEAM PHYSICIAN’S CORNER
                P                   articipation in recreational and competitive swimming has evolved





                                    with growing popularity over the centuries, particularly since it was

                                    included in the first modern Olympic Games in 1896. In 2020, event
                                    distances in the upcoming Olympics range from 50 to 1500 meters in
                                    the pool, open-water distance swimming of 10 kilometers, and up to
                                    2.4 miles in Ironman distance triathlon events. The four competitive

                                    strokes include freestyle, backstroke, breaststroke, and butterfly.






                                                                                  Epidemiology of
                                                                                  Swimming Injuries
                                                                                  The number of Americans who swim
                                                                                  recreationally or competitively increased
                                                                                  by 1.5 times from 2006 to 2018 and is
                                                                                  estimated at nearly 28 million in 2020.
                                                                                                                 2
                                                                                  Injury rates in competitive swimming
                                                                                  have demonstrated a steady climb from
                                                                                  the high school and collegiate levels
                                                                                  to the Olympic and professional levels
                                                                                               4,5
                                                                                  since the 1990s.  Additionally, as with
                                                                                  other sports, athletes who specialize in
                                                                                  one discipline (breaststroke, backstroke,
                                                                                  butterfly, or the individual medley)
                                                                                  are at a higher risk of injury than
                                                                                  freestylers. 6
                                                                                     The vast majority of these injuries
                                                                                  are overuse and non-contact injuries.
                                                                                  Among NCAA swimmers, between 2009
                                                                                  and 2014 an injury rate of 1.63 injuries
                                                                                  per 1000 athlete-exposures among
                                                                                  females and 1.48 injuries per 1000
                                                                                  athlete-exposures for males was
                                                                                  documented.  Among Olympic swimmers,
                                                                                             7
                                                                                  injury incidence remained steady
                                                                                  between the 2008 and 2016 Olympics at
                                                                                  3–4 percent, though swimming was the
                                                                                  only sport in the 2016 Rio de Janeiro
                                                                                  Games where more injuries took place
                                                                                  during training than in competition. 8,9
                                                                                     Several predisposing factors have
                                                                                  been identified that put swimming
                                                                                  athletes at risk for injury. These include
                                                                                  ligamentous laxity, range of motion
                                                                                  deficits, improper stroke mechanics,
                                                                                  and muscular fatigue. The most common
                                                                                  mechanical mistakes that lead to overuse
                                                                                  injuries in freestyle swimming include:

       4    SPORTS MEDICINE UPDATE  |  Summer 2020, Issue 3
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