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The 123 jump is a terrific single leg jumping exercise because it is
basically a series of running jumps. This is a highly sports specific
drill which helps develop reactivity and movement efficiency.
The emphasis of this drill should be on taking fast steps and jumping for both height and distance.
The 123 jump is a great vertical jump exercise, but to discover the fastest way to increase your vertical jump you need to check out the jump training methods in Game Changers. These exercises provide gains far above and beyond regular exercises. Find out more by clicking the image below.