At the invitation of Ed Parker, Lee appeared in the 1964 Long Beach International Karate Championships and performed repetitions of two-finger push-ups (using the thumb and the index finger of one hand) with feet at approximately shoulder-width apart. In the same Long Beach event he also performed the "One inch punch. " Lee stood upright, his right foot forward with knees bent slightly, in front of a standing, stationary partner. Lee's right arm was partly extended and his right fist approximately one inch (2. 5 cm) away from the partner's chest. Without retracting his right arm, Lee then forcibly delivered the punch to his partner while largely maintaining his posture, sending the partner backwards and falling into a chair said to be placed behind the partner to prevent injury, though his partner's momentum soon caused him to fall to the floor. His volunteer was Bob Baker of Stockton, California. "I told Bruce not to do this type of demonstration again", Baker recalled. "When he punched me that last time, I had to stay home from work because the pain in my chest was unbearable".