Straddle technique straight, and head and trunk pass the bar at the same time. Charles Dumas, the first high jumper to clear 7 ft, and John Thomas (silver medal at the 1964 Olympics) used this technique. Valeriy Brumel (gold in 1964) dove a little bit, his head going over the bar before his trunk. Probably the most extreme exponent of the dive straddle was Bob Avant, who cleared 7 ft. in 1961. Avant's technique was close to a pure dive, with just a small knee lift on his lead leg. The last world record jump with the straddle technique was Vladimir Yashchenko's
IAAF World Championships in Athletics hosted separate from the Olympic Games (traditionally the main championship for the sport). A second limited event was held in 1980, and a major expansion in 1983 is considered the official start of the event. It was then held every four years until 1991, when it switched to a two year cycle. The idea of having an Athletics World Championships was around well before the competition's first event in 1983. In 1913, the IAAF decided that the Olympic Games would serve as the World Championships for athletics. This was considered suitable for over 50 years until in the late 1960s