The purpose of the present study is to investigate the changes in the angles of elbow joint and the forces exerted while handling 'shina-i' (fencing stave used in 'kendo') clutdhed in both hands during performing 'ohji-waza' (defence-plus-counterattack technique) of 'kendo' (Japanese fencing). Each finger force was recorded with a kind of finger grip dynamometer attached to the handle of 'shina-i'. The techniques investigated were 'men-kaeshi-do' (technique of receiving opponent's stroke against face guard, deflecting it with the reflexive power of the 'shina-i' and blowing the opponent's trunk), 'men-suriage-men' (technique of warding off opponet's 'shina-i' blowed on the mask with sliding, upward movement and then delivering stroke against opponent's mask by taking advantage of his unbalanced posture) and 'do-uchio-toshi-men' (technique of striking opponent's 'shina-i' blown on the trunk downward and then delivering stroke against opponent's mask). The subjects held 'itto-issoku-no-ma-a-i' (the distance of about 2m for a stroke at a step forward) and then they defended and counterattacked. Five grade holders as subjects participated in this experiment. The following results were obtained. 1. The forces exerted on the handle of 'shina-i' by left hand fingers were greater than those by right in each technique. 2. Comparing the forces by left hand fingers with those exerted at maximam grip effort, the forces of little and ring fingers amounted to more than 100% in each technique. They were ranging 104-146% in 'men-kaeshi-do', 105-190% in 'men-suriage-men' and 103-177% in 'men-uchiotoshi-men' just before the blow. 3. When the 'shina-i' moved upward, the forces were exerted especially by all right fingers and left index finger. When the 'shina-i' moved downward, the forces were exerted especially by left little, ring and middle fingers. 4. Each subject showed almost the same force curve.