The practice of fishermen and seafarer on the prevention of injury after training increased higher than before training: immobilising before and after training (6% - 11% và 74% - 75%); bandage the wound before and after training (8% - 23% và 74% - 86%); tourniquet before and after training (5% - 15% và 62% - 79%); Telemedicine before and after training: (2% - 4% và 54% - 73%).