POSTER ABSTRACTS - ISAKOS

forces involved and little concern is given to
potential morbidity.
MATERIAL AND METHODS
We conducted a study to investigate the frequency
and type of musculoskeletal injuries of taekwondo
among 220 national team players between the
years 1996 and 2003. The records of the Turkish
National Taekwondo Federation were
retrospectively scanned.
Interviews or mail-questionnaires were performed
with players and instructors/trainers who were
involved in national team in the given period. The
relationship between injuries and the type of the
performance (competition or training), age and
sex of the player were investigated.
RESULTS
There were 220 national team players including
111 males with an average age of 21.3 during
participation in the national team, and 109
females with an average age of 18.7.
The injuries mostly happened during a
competition or training were minor skin and
muscle injuries causing pain and rigidity. Minor
skin and muscle injuries included sprain, strain,
spasm, inflammation and high jumper’s strain.
Other than skin and muscle injuries, bone and
joint injuries were encountered with a less
frequency.
The most frequent serious injury was found to be
contusion of the dorsum of the foot (54 cases),
which clearly explained the necessity of foot
taping. We encountered ankle sprains in 27
players. Knee injuries were considerably high in
frequency; 15 medial meniscus lesions, 8 ACL
injuries, 7 lateral meniscus lesions, 3 medial
collateral ligament lesions, and 2 PCL injuries.
Shoulder dislocations were detected in three
players, one of which recurred many times and
necessitated a reconstructive surgical procedure.
There were also 3 Colles fractures, one mandible
fracture, one partial rupture of adductor femoris
tendon, and a case of complete rupture of
extensor hallucis communis tendon.
CONCLUSION
The relatively significant rates of injury among
high-level taekwondo players increase the
responsibility of team physicians. It also
implicates the necessity of using protective gear.
E-poster #1104
Epidemiological Analysis of Injuries in J-league
Football Players
Minoru Shiraishi, JAPAN, Presenter
Jikei University School of Medicine, Minatoku,
Tokyo, JAPAN
Introduction:
To prevent injury and improve condition is very
important to achieve good results in professional
sports. But the previous epidemiologic study did
not clarified daily conditioning problems in detail.
Purpose:
This study was designed to analyze deteriorated
performance of the professional football players
in JAPAN(J-league).
Materials and Methods:
We have examined injuries(trauma and disorder)
that occurred to the professional football
players(50 males, average age 24.7 years; range
18-36) in Nagoya Grampus Eight Football Club
during 3 seasons(1999~2001). All data were
obtained daily by one full-time team doctor who
performed medical examination every pre- and
post-training. Injuries were classified into Poor
Condition group(PC; players can continue normal
training instead of performance level down for
some days after injured while undergoing medical
care) and No Training Group (NT; players who
stop normal training after injured). The statistical
procedures were performed using Stat View (SAS
Institute, Inc., North Carolina). The level of
significance was 5%.
Results:
A total of 457(PC; 172, NT; 285) injuries occurred.
In the PC group, the injury rate per 1000 exercise
hours was; 6.3 cases during a game, 8.3 cases
during a preseason camp, and 1.8 cases during
daily training(average 3.1 cases). On the other
hand, in the NT group, the injury rate per 1000
exercise hours was; 13.4 cases during a game, 7.7
cases during a preseason camp, and 2.8 cases
during daily training(average 5.3 cases). Injury rate
of the NT group was statistically lower than F-
MARC’s study. There is no other comparable
report with PC group. In both groups, about 70%
of the injuries were involving lower extremities
and injury rate according to location was different
by the year. Of the 33 severe injuries that occurred
during the investigation period, 16 required
surgery. In NT group, head, upper extremities and
knee injuries were statistically more frequent than
F-MARC’s study. In NT group, more injuries
occurred during game and through sprain
mechanism than PC group. Many injuries were
caused by intrinsic factors; muscular
problems(PC; 31%, NT; 44%), past injuries and
inadequate rehabilitation(PC; 24%, NT; 33%) or by