jumping jack noun 1 :a conditioning exercise performed from a standing position by jumping to a position with legs spread and arms raised and then to the original position 2 :a toy figure of a man jointed and made to jump or dance by means of strings or a sliding stick...
The jumping jack is an effective way to stimulate all the vital muscles of your body. It is a full-body exercise used in cardio and warm-up sessions. Jumping jacks include resistance and aerobic training, making it a plyometric exercise. It is equally suitable for beginners and fitness enthus...
. Jumping-bean is from 1878 (earlier jumping-seed, 1870, also devil-bean, 1878). Jumping-jack is from 1821 as a kind of child's stringed toy; as a type of fitness exercise that somewhat mimics its motions, it is from 1921. also from 1560s...
Jumping Jack Passed as Official ExerciseA group of students from St. Joseph watched years of hard workpay off Thursday in Jefferson...Thomas, Clinton
a The sound woke his grandma up. The old woman shouted downstairs, "It's twelve o'clock in the night, Jack. Why are you still jumping upstairs?" 声音把他的祖母吵醒。 老妇人呼喊楼下, “它是十二时夜,杰克。 为什么您平静跳在楼上?“[translate]...
Extended licenses? WEB 640x360px2.1MB mov 720 1280x720px22.3MB mov 1080 1920x1080px42.3MB mov 4K 3840x2160px118MB mov We accept all major credit cards from China. Young man with naked torsos training in the room and does the exercise jumping jack and ...
jumping jack noun 1 : a toy figure of a man jointed and made to jump or dance by means of strings or a sliding stick 2 : an exercise that involves jumping from a standing position to one with legs spread and arms raised and then back to the original standing position Last...
A jumping jack exercise device that includes a frame configured to be supported on a floor. A first and second leg link, each including a foot support, pivotally supported by the frame for motion in a straddle plane which extends to the sides of a user whose feet are engaged by the ...
An exercise machine for low impact exercise of a person. The machine has a base and a support post extending from the rearward end of the base. Two leg members divergently extend generally downward from a first forward facing pivot point for pivoting about a first axis perpendicular to the ...
The meaning of JUMPING JACK is a conditioning exercise performed from a standing position by jumping to a position with legs spread and arms raised and then to the original position. How to use jumping jack in a sentence.