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August 17, 2005
News this month
Increase in adult-type injuries among children and adolescents
Approximately 35 million children and young adults between the ages of 6 and 21 years participate in sports. Team sports are a great way for children to improve physical coordination, boost self esteem, maintain physical fitness and foster self-discipline.
Increasing numbers of young children are becoming sports-specific and training year-round to compete at a competitive level of play.
Unfortunately, increasing numbers of young children are becoming
sports-specific and training year-round to compete at a competitive
level of play, which puts them at risk for overuse injuries. In
some cases, the damage is permanent, increasing the risk that the
athletessome of them as young as 9will suffer crippling
arthritis or require extensive surgery as they get older.
Overuse
injuries from repetitive strain
Overuse injuries occur
as a result of repetitive strain on tissues such as bone, tendon
and ligaments, as well as specific muscle groups. Injury occurs
when these tissues undergo sustained stress without enough time
for recovery. Overuse injuries tend to occur in competitive sports:
most commonly baseball, basketball, running, gymnastics and swimming.
But
just about any recreational activity that involves repetitive motion
has the potential to cause an overuse injury, especially if kids
are pushed too hard, says Paul Stricker,
MD, FAAP, a pediatric sports medicine specialist and a member of
the executive committee of the American Academy of Pediatrics (AAP)
Section on Sports Medicine and Fitness.
Overuse syndrome, playing
the same sport constantly instead of participating in a variety
of activities, can result in injuries such as swimmer's shoulder,
Little League elbow, runner's
knee, jumper's knee, tennis elbow, Achilles tendonitis and
shin splintsconditions that can develop into chronic problems
later in life.
Doctors in pediatric sports medicine are treating injuries
in children that they once saw only in adults.
Young athletes
Media coverage of competition
in sports such as gymnastics, figure skating, tennis, swimming
and diving has attracted attention to a number of very talented
but very young competitors. The demand to succeed creates a constant
pressure for these athletes to train longer, harder, more intensely
and, in some cases, at an earlier age. As the age of competitive
athletes in sports such as gymnastics and tennis decreases, the
pressure to succeed early in athletes' careers
has intensified.
The New York Times reports that doctors
in pediatric sports medicine are treating injuries in children
that they once saw only in adults, blaming an over-aggressive
culture of organized youth sports. According to the U.S. Consumer
Product Safety Commission, more than 3.5 million related injuries
in children under age 15 were treated in the U.S. in 2003.
Prevent
overuse with conditioning and training
Most overuse
injuries can be prevented with proper conditioning and training.
The American Academy of Pediatrics recommends cross-training
in moderation throughout the year to prevent any one area of
the body from becoming overworked and stressed and to help maintain
overall fitness levels.
Children should be encouraged to participate
in sports at a level consistent with their abilities and interests.
Pushing children beyond these limits is discouraged as is specialization
in a single sport before adolescence.
Parents and coaches should
be cautious when a young athlete has significant pain and should
not encourage a child to play
through the pain.
Children and adolescents are predisposed
to overuse injuries because of the relative weakness of their growing
bones and the tightness of their ligaments, tendons and muscles
during growth spurts, said Dieter Lindskog, MD, pediatric
orthopedist at Yale-New Haven Children's Hospital.
The American
College of Sports Medicine estimates that 50 percent of overuse
injuries in children and adolescents are preventable. Pre-participation
screening, required by most schools, should be encouraged for
all children involved in organized athletics. The pre-participation
exam can detect condition that may limit participation or predispose
an athlete to an injury and assess general health.
Educational campaign underway
The American Academy
of Orthopedic Surgeons (AAOS) and the National Athletic Trainers' Association
(NATA) launched a public service campaign in March to educate young
athletes, parents, coaches and the media on how to prevent, treat
and rehabilitate overuse injuries.
The Youth Sports Injuries public
service campaign is a year-long campaign with advertisements featuring
kids playing baseball that will appear in major magazines, newspapers
and at airports with the provocative headline: What will
they have longer, their trophies or their injuries?
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Parents are key to prevention of overuse injuries
Youth sports are becoming increasingly popular among children and adolescents. Recent studies estimate that 30 to 50 percent of pediatric sports injuries are caused by overuse, with the frequency of injury equal among boys and girls. For older patients, the proportion of injuries that are due to overuse is even higher.
Thirty to 50 percent of pediatric sports injuries
are caused by overuse.
Types of overuse injuries
Diagnosing overuse
injuries as well as what causes them can be challenging. The
three types of injuries we commonly see in our practice are:
- Repetitive activity or micro trauma, caused by routine or
normal stress to the bone without adequate recovery;
- Growth plate injuries, or fractures, which, left untreated,
can cause permanent damage and interfere with proper growth
of the involved limb; and
- Soft-tissue damage to muscles, ligaments and tendons.
Children more susceptible
Children who engage
in sports are playing at a time when their bones, muscles, tendons
and ligaments are still growing. Children's
bone and soft tissues have mechanical properties that are different
from what they will be as adults, making them more susceptible
to injuries.
Unfortunately, it is not uncommon for athletes to play
through their pain in an effort not to disappoint teammates,
coaches and parents. Coaches and parents must learn to temper
their desires to let children continue to play and instead seek
early and appropriate care to prevent long-term consequences.
How much is too much?
A lot of controversy
surrounds what people consider overuse or excessive. There
have been limits on the number of innings Little League pitchers
can pitch for many years. Now, however, many kids play for multiple
teams in different leagues and it must be up to the parent to
control the number of innings.
Total training should increase no more than 10
percent at a time.
Other controversies include weight training for prepubescent
children. Reports have shown that younger adolescents can train
safely and effectively, but is it really necessary to lift weights
at age 12?
Despite scarce data about training progression and injury, gradual
progression should be stressed. A general guide is the 10
percent rule: Total training (intensity, frequency, duration,
or any combination of these) should increase no more than 10
percent at a time.
Signs of excess
Because there are no set guidelines
for what constitutes overtraining, parents, athletes and coaches
need to be aware of possible warning signs that athletes are
overtraining. These include:
- Excessive use of over-the-counter pain medications
- Changes in an athlete's performance or techniques
- Psychosocial changes
Many athletes, including children, rely on the use of ice and
over-the-counter anti-inflammatory medications such as Motrin ® and
Advil ® immediately after exercise. However, long-term use
of such remedies should raise concerns of overuse.
If pain or
soreness causes changes in a child's gait,
body mechanics or sport technique, this too, may suggest excessive
use. Proper technique, such as throwing mechanics, is crucial,
even at a young age, to prevent undue stress and limit overuse
injuries.
Good coaching is important. Young athletes need to
be instructed in their sports so they can participate properly
and not excessively. A child's coach should be knowledgeable
about proper training techniques, equipment and the unique physical,
physiologic and emotional characteristics of young competitors.
Encourage your child's sports league to have a certified
athletic trainer at all practices and games to evaluate and treat
injuries and advise on the need for further medical attention.
Ideally, children should participate in sports for one reason to
have fun! 
Dr. Lindskog is an adult and pediatric orthopedist at Yale-New Haven Hospital and assistant professor of orthopaedics at the Yale University School of Medicine.
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