The governing body said three sessions were held in English, which were identical in content.

Sessions were offered with translations into Russian, Spanish and French to allow more people to participate.

The three hour sessions, held at the end of April, focused on theoretical recommendations as well as practical exercises.

"Perfect technique, useful tips for every level of physical condition, great experience supported by success of the first webinar in January served as a reason for expanding cooperation of the International Sambo Federation with ComplexCore specialists," the FIAS said.

"FIAS sees this collaboration as opportunity for all its members to enhance their knowledge and prepare safe environment on field of play by reduce risks of athlete injury.

"This time, there was prepared an even more specific online training for the sambo community."

The FIAS said ComplexCore is a training concept for the core, arm, and leg muscles, developed by Roman Jahoda, a former judo athlete from Austria.

Jahoda developed the concept over many years in collaboration with the sports physiotherapists.

The FIAS said ComplexCore has clear and easy-to-understand explanations, a simple structure, and personalised plans.

The governing body said the plans are perfect for therapists, patients, recreational athletes and elite level athletes.

The FIAS hopes to provide access to recordings of the web seminars in the near future.