You can bounce high in the air. 

You can jump high in the air. 

Trampolining is a sport where athletes jump on a stretchy bed. 
In a competition, athletes do ten jumps in a row. They must start and end on their feet. They can use different body shapes in the air. A tuck shape means pulling knees to the chest. A pike shape means keeping legs straight with hands on feet. A straight shape means keeping the body like a board. 
Judges give points for how hard the moves are. They also look at how long the athlete stays in the air. They take points away for bad form. In synchronized trampoline, two people jump at the same time. They must stay in sync on two side-by-side beds. 
Trampolining is a fast and exciting Olympic sport. Athletes use a stretchy bed to perform acrobatics. They bounce high to do somersaults and twists. This sport is part of gymnastics. It includes many different events like synchronized trampoline and tumbling. 
An athlete follows a specific way to perform a routine. They must complete ten contacts with the trampoline bed. Every routine must start and end on the feet. 

The history of the sport began in the 1930s. George Nissen saw circus artists bounce off safety nets. He wanted to make those tricks smaller. He built the first modern trampoline in his garage. He used it to help with his own diving. He even used the word "trampolín" for his brand. This word is a Spanish term for a diving board.
Many people have made the sport famous over the years. The first World Championships were in London in 1964. Dan Millman and Judy Wills Cline were the first champions. In 1965, the International Trampoline Federation was officially recognized. Later, the sport joined the FIG in 1999. This helped it join the Summer Olympic Games in 2000. 
There are other ways to enjoy these skills. In synchronized trampoline, two people jump on side-by-side beds. They must perform the same routine at the same time. Another event is the double mini trampoline. This bed is smaller and has a sloped end. 
Trampolining, also known as trampoline gymnastics, is a competitive Olympic sport. Athletes perform complex acrobatics while bouncing on a specialized trampoline. This sport requires immense skill, strength, and precision. It is a major part of the gymnastics world. 
In a formal competition, athletes follow a strict sequence of movements. A routine consists of exactly ten contacts with the trampoline bed. Every routine must start and end on the feet. Athletes must also begin their routine within 60 seconds of presenting to the judges. At the very end, they may use one "out bounce." This is a straight jump used to control their height before the final landing. To finish correctly, the trampolinist must stop completely. This means the bed must also stop moving. The athlete must hold a still position for three seconds.
During these ten contacts, gymnasts use specific body shapes. The tuck shape involves clasping the knees to the chest with the hands. In a pike position, the legs remain straight while the hands touch the feet. The straight position requires the body to be straight with legs together and toes pointed. There is also a "puck" shape, which is a hybrid of pike and tuck. This shape is often used during multiple twisting somersaults. 
Rotation in the air happens around different axes. Gymnasts rotate around the longitudinal axis to create twists. They rotate around the lateral axis to perform somersaults. Rotation around the dorso-ventral axis produces side-somersaults or "turntables." However, these side-somersaults are not considered valid moves in competition. They do not carry a "tariff," which is a score for difficulty. Athletes can use FIG shorthand to describe these skills. This notation uses numbers for rotations and symbols for body positions. For example, an "800ο" represents a double back somersault in a tuck position.
Scoring is a precise process involving multiple factors. Judges mark routines out of 10 based on form. They also calculate the "degree of difficulty," or DD. This is found by adding points for every half twist and quarter somersault. 

Several different disciplines exist within this field. Double mini trampoline uses a smaller bed with a sloped end. Athletes run up the slope and jump onto the flat part. They perform skills during the jump or as they dismount. 
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