 Image by Lance Cpl. Ryan M. Joyner, via Wikimedia Commons. Licensed Public domain |
The Jumping JacksJumping jack Jumping jack Physical jumping exercise This article is about physical exercise. For other uses, see Jumping jack (disambiguation). Not to be confused with Jump'n Jack. 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 spread wide. The hands go overhead, sometimes in a clap, and then return to a position with the feet together and the arms at the sides. Schoolchildren in the US performing jumping jacks. Jumping Jacks GIF animation The jumping jack exercise's origin is said to date back to 1885 as a method of hazing underclassmen at West Point Military Academy by… (Source: Wikipedia)
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