Sparring – A medical implication – Part 3

October 18th, 2007 at 22:23 · Filed Under Injuries, Karate, Medical, Sports · 19 Comments 

To continue from previous topic here and here. Now, let us focus on injuries in children. Children suffers greater risk of injuries than adult because they are in their tender growing age. Children and adults share the same risk for injury of the bones. However, child’s bones are subject to a unique injury called growth plate fracture. Growth plate fracture requires immediate medical attention because long-term consequences may include limbs that are crooked or of unequal length.

What is growth plate?

Growth plate or physis is an area of developing bone tissue often near the ends of long bones (such as femur), between the widened part of the shaft of the bone or the metaphysis and the end of the bone or the epiphysis.

The long bones of the body do not grow from center outward, instead, it grows at each end of the bone around the growth plate. The growth plate is the last portion of the bone to ossify or harden, which causes it susceptible to fracture. Because muscles and bones develop a different speeds, a child’s bones are weaker than the surrounding connective tissues or ligaments.

When a child is practicing free sparring or jiyu kumite in sports karate (or Tae Kwon Do) for example, the constant body bouncing introduces stress every each time the child landed on the ground. This may cause or retard the growth of the bones by injuring the growth plate. The child’s bones may become crooked due to the repetitive stress which the bones have to withstand.

Excessive kicking motion will further weaken or injure the already weak connective tissues or ligaments mentioned earlier. Take mawashi-geri or roundhouse kick for example, when the child misses the target, his/her leg will snap in the air. Without hitting a target, the momentum of the kick cannot be transferred and thus snapping of the leg will injure the knee by absorbing the momentum of the kick. All these injuries are long-term.

Children’s bones heal faster than adult’s. This gives two important consequences. First, it is important for a child with injury to see a doctor as quickly as possible to receive proper medical treatment before it starts to heal. Ideally to see an orthopedic particularly if manipulation to align the bone is necessary. Second, the immobilization period required for healing is shorter than adult.

Risk Factors

Who is at risk?

  • Children near the end of their growth period are particularly vulnerable compared to children of other age.
  • Boys’ risks are twice the girls’.
  • More than one third of growth plate injuries occur in competitive sports.
  • About 20% of growth plate fractures occur during recreational activities such as biking or skateboarding.

Are you willing to subject your children to such injuries for participating sparring or kumite and suffer long-term effects for their entire lives?