The eastern cut-off is a variant of the "scissors" high jump style involving a layout.
This enables the jumper to clear a higher bar than with the traditional scissors style while still landing on the feet.
The technique is generally credited to Michael Sweeney of the New York Athletic Club, who used it in 1895 to set a world record of 6 ft 5 5/8 inches (1.97 m).
Horine was in fact the first to improve on Sweeney's record, when he cleared 6 ft 7 inches (2.01 m) in 1912.
Although succeeded by the more efficient layout techniques of the western roll and (in the 1930s) by the straddle, the eastern cut-off continued to be competitive at an international level until the 1940s in the men's high jump, and until the 1960s in the women's high jump.