“…Conversely, early specialization refers to the concept of a child participating in year-round intensive training within a single sport or physical activity at the exclusion of others (57,265). Concerns exist regarding the adoption of an early specialization approach in youth, largely because of the inherent associations with increased risk of injury (36, 78,79,104,119,120,187,192,235), the potential "blunting" of an individual's motor skill portfolio (57,144,176,186), a reduced standard of performance later in life (28, 84,96,174,268), an increased risk of overtraining or dropout from sport or physical activity (4,35,151,187), and the nonguarantee of achieving elite-level performance (28, 101,174).…”