The All Japan Judo Federation has refreshed its safety archive on serious head and neck injuries and heat-stroke prevention, bringing together guidance issued to prefectural associations, instructors and safety officers.
The archive includes the directive issued on 3 June 2026, a year-opening accident-prevention notice from April, and summer safety material published since 2018. The documents place particular attention on supervision, safe progression for beginners, hydration and responding promptly when a participant shows signs of heat illness.
The advice is also relevant to Hong Kong, where hot and humid summer conditions can increase the physical strain of training. Coaches, parents and judoka should plan rest and hydration carefully, while adapting throwing and randori intensity to each participant's age and experience.