Send to

Choose Destination
Br J Sports Med. 2018 Sep;52(17):1109-1115. doi: 10.1136/bjsports-2016-096849. Epub 2017 Apr 26.

Epidemiology of injuries in judo: a cross-sectional survey of severe injuries based on time loss and reduction in sporting level.

Author information

Sports Clinic Cologne at Cologne Merheim Medical Center, Cologne, University of Witten/Herdecke, Cologne, Germany.
Department of Trauma and Reconstructive Surgery with Division of Knee and Shoulder Surgery, Sports Traumatology, Asklepios Klinik Sankt Georg, Hamburg, Germany.
Department of Trauma and Orthopedic Surgery, University of Witten/Herdecke, Cologne Merheim Medical Center, Cologne, Germany.



Sport injury severity can be detected by duration of time loss and reduction of sporting performance.


To detect injury type-specific time loss duration and sporting performance reduction in judo.


An online survey of active and former judo athletes was conducted (exclusion criterion: incomplete questionnaire). Only injuries causing more than 3 weeks' time loss were recorded. Athletes classified themselves into performance classes. Injury type-specific frequencies were recorded according to gender, age and performance level. Injury severity was assessed by time loss duration and performance reduction.


The study included 4659 athletes (65% male, 38% competitive sports). The most commonly injured body regions were the upper extremity (41%) and the lower extremity (39%). Anterior cruciate ligament (ACL) ruptures were the most severe injury type (time loss: 4% of cases 3-6 weeks, 6% 6-12 weeks, 26% 3-6 months, 32% 6-9 months, 18% 9-12 months, 14%>12 months; performance reduction: 32% same level, 39% slightly reduced, 24% strongly reduced, 5% stopped judo). The second most severe type of injury was a vertebral disc prolapse (time loss: 26% 3-6 weeks, 31% 6-12 weeks, 20% 3-6 months, 7% 6-9 months, 3% 9-12 months 13%>12 months; reduction of sporting performance: 39% same level, 34% slightly reduced, 20% strongly reduced, 8% stopped judo).


Across genders and performance levels, ACL ruptures and vertebral disc prolapses were the most severe injuries with respect to time loss and sporting performance reduction.


Sport injuries; judo; reduction sporting performance; time loss

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for HighWire
Loading ...
Support Center