When I worked as a strength coach at a private training facility, I had a 12 year old kid that showed up for his workout and looked dejected. This was very rare for him so I asked him what was wrong, and he told me that his parents wanted him to pick a sport. This kid was a tennis player, swimmer, and basketball player and he enjoyed all of them. When he came in for workouts, he did not care about what he was doing, he just wanted to do something active. In short, he and his parents had very different mindsets. Therefore, I told him, “Do not pick one, and play them all. Also, if your parents disagree, I am more than happy to talk to them.” It was not a fun meeting with the parents at first, but I explained to them what I will discuss in this paper. Early specialization is not good for youth athletes, and will lead to more negative than positive outcomes.
Sports specialization is defined as intense training in one sport while excluding others (1). Many parents and coaches push their kids in this direction with the thought that their child has a better chance of becoming an expert. Ericsson et al identified 3 stages in becoming an expert musician; start at an early age, specialize and increase participation, and full-time commitment (1). Ericsson et all also specified that expertise is reached through “deliberate practice”. This is defined as “practice activities that were effortful, low in inherent enjoyment, and purposefully designed to address current area of weakness” (2). Ericsson et al also argued that deliberate practice must occur during childhood because it is a period of enhanced biological and cognitive development (2). While the research based evidence by Ericsson et al supported early specialization, one must remember that these studies looked at musicians and chess players. These activities do not involve the same physiological demand and development of athletics! A lot has changed since research started looking into early specialization specifically in sports.
In the U.S. between 1997 and 2008, the percentage of children 6 years and younger participating in an organized sport increased from 9% to 12%. Also, 77% of high school athletic directors across the country reported an increasing trend in sport specialization. Furthermore, the United States Tennis Association found that 70% of junior tennis players started specializing at an average age of 10.4 years old. This percentage increased to 95% by the age of 18. However, reports also show that athlete satisfaction ratings decreased substantially in players older than 14 years (1). Several studies support the negative psychological effect of early specialization. Swimmers and ice hockey players who specialized early retired earlier than those that specialized later in life (1). Junior tennis players who quit at an early age reported having less input in their training, higher perceived parental criticisms and expectations, and lower levels of extrinsic motivation. Finally, elite Russian swimmers who burned out blamed psychological fatigue and general health (1). The psychological challenges imposed by early specialization also effect the social development of a youth athlete.
Research suggests that intensive training at an early age limits the development of social skills. Studies have shown that youth athletes involved in specialized training demonstrate less helping and sharing behavior and great antisocial tendencies than other athletes. Furthermore, early specialized athletes have report social isolation, rivalry, lack of free time, and sacrificing or missing social opportunities as consequences of their sport career (2).
Early specialization interrupts the natural physiological growth of a youth athletes. By placing consistent, unvaried demands on an athlete during the most important development stage in their life, they miss out the development of natural athletic movements that could be learned through other activities (site this). Unvaried activity also increases the risk of over use injury.
Whether it be repeatedly serving in tennis or repeatedly throwing a baseball, these motions on under-developed should increase the risk of structural damage substantially. In fact, a study found that youth pitchers who pitch over 100 innings per year (about 11 full games) are 3.5 times more likely to be injured (1). Other studies found that pitching more than 8 total months per year also significantly increases risk of shoulder and elbow injuries (1). Finally, it was shown that peripubertal athletes are more likely to suffer structural injuries because their bodies are in vulnerable states of growth.
Due to psychological and physical factors, late specialization is much more beneficial for an athlete. It has been shown that the great number of sports participated in during the development years, the less sports-specific practice was necessary to acquire sport expertise later in life. Early diversification provides the young athlete with valuable physical, cognitive, and psychosocial environments and promotes intrinsic and extrinsic motivation.
When I was growing up, my friends and I played all sorts of sports and even made some games up. We all ended up being good high school athletes and a lot went on to play collegiate sports. The research and statistics show that early specialization hinders the physiological and psychological development of a youth athlete. Parents, sport coaches, and strength coaches need to realize that general physical activity for youth athletes is better in the long run than intense, specialized training in one sport. It is a culture that is controlled by everyone except for the athlete. Therefore, it is up to us physical performance coaches to spread this knowledge to end the early specialization epidemic!