The split jack, sometimes called as the split jumping jack, is a form of a warmup exercise and may be regarded as a variation of the traditional

jumping jack __NOTOC__ A jumping jack, also known as a star jump and called a side-straddle hop in the US military, is a physical jumping exercise performed by jumping to a position with the legs A leg is a weight-bearing and locomotive anatomical stru ...

.Campbell, Adam. ''The Men's Health Big Book of Exercises'', ''Warmup Exercises'', Chapter 12, Rodale, New York, 2009, page 353.Campbell, Adam. ''The Women's Health Big Book of Exercises'', ''Warmup Exercises'', Chapter 12, Rodale, New York, 2009, page 353.SPLIT JACKS
MH Celebrity Fitness, menshealth.com It is similar to the

split jump A split jump is a sequence of body movements in which a split is performed after jumping, while the performer is still in the air. Split jumps are commonly found in dance, figure skating, and gymnastics, and may also be used as a form of exercise ...

; however, in the latter, the arms do not move and stay stationary at the sides of the

torso The torso or trunk is an anatomical term for the central part, or the core, of the body of many animals (including humans), from which the head, neck, limbs, tail and other appendages extend. The tetrapod torso — including that of a human � ...

Execution

The split jack is performed, according to Adam Campbell's ''The

Men's Health ''Men's Health'' (''MH''), published by Hearst, is the world's largest men's magazine brand, with 35 editions in 59 countries. It is also the best-selling men's magazine on U.S. newsstands. Started as a men's health magazine by Rodale, Inc. ...

Big Book of Exercises'' and ''The

Women's Health Women's health differs from that of men in many unique ways. Women's health is an example of population health, where health is defined by the World Health Organization as "a state of complete physical, mental and social well-being and not mer ...

Big Book of Exercises'', by first standing in a staggered stance, while having the right foot in front of the left foot. Then the actual jumps are done while swinging an arm that is opposite to the jumping foot, switching legs throughout the process.

References

{{DEFAULTSORT:Split Jack Aerobic exercise