Swimming rules and regulations
Competitive swimming
The four styles, or swimming styles, are disputed in swimming encounters: freestyle, back, butterfly and butterfly. Swimers run a variety of distances, ranging from 25 yards or meters to 1600 yards. Each stroke has specific rules on how swimmers can be driven through water.
Free style
The freestyle, often called ‘Crol’, is the most flexible in its rules and, usually, is the fastest blow. The only rules are that the swimmer cannot push the bottom of the pool or pull the lane line, and must touch the farthest wall with some part of his body. Otherwise, swimmers can use any type of stroke. The freestyle is swimming face down with alternate strokes;lateral breathing;and fast kicks that alternate up and down. Free -style races begin with swimmers who make immersions looking forward from an exit block or from the pool side. In several laps races, swimmers can make an open turn or an inverted turn. When making a turn, the swimmer does not touch the wall with his hand. Instead, swimmer’s feet touch the wall. In the end, free -style swimmers touch with one hand.
Reverse
You often think about the back as ‘freestyle upside down’. As in the freestyle, the back style is swimming with alternate, alternate kicks, up and down. Unlike the freestyle, the swimmer must be on his back, looking at the sky. When swimmers turn their shoulders more than 90 degrees, they are disqualified from the race for not staying back. The only exception to this rule applies to the turn in the back races of several laps: swimmers can turn face down to pull one arm, provided that the movement of their arms is continuous. When their feet leave the wall, swimmers must be mouth. Back races begin with swimmers already in the water. The swimmers place their feet against the wall and cling to the gutter or the grip integrated in the output block. At the end of the race,
Fathom
It often thinks about the stroke as the ‘frog stroke’, since the kick remembers the kick of a frog. The arms and legs of a brazy swimmer must move simultaneously, in the same horizontal plane and identically with each other. The arms and legs remain mostly underwater, but the swimmer’s head must go to the surface in each stroke. Calls scissors are not allowed. The stroke begins and ends in aerodynamic position. The hands take water to the sides, before sweeping towards the middle of the body and then firing forward. Swimmers are not allowed to lower their hands beyond hips and must keep the elbows in the water when their hands move forward. In the braz kick, swimmers must point the fingers of the feet to the sides while the feet move outward, around and backward together. For each stroke there must be one, and only one,
The brace races begin with an immersion looking forward from the edge of the pool or from the outlet block. At the beginning of each lap, swimmers can make a pull down: a huge pull, in which the hands slide towards the thighs and a giant kick towards the surface. In the first stroke after the descent, the swimmer’s head must break the surface of the water. Today’s swimmers can also kill dolphin / butterfly in the first part of Pull-Down, before the first brace kick. At the end of each return of a brazy race, swimmers must be touched with both hands, simultaneously and on the same horizontal plane. In several laps races, swimmers will use open turns, not inverted turns.
Butterfly
Butterfly emerged as a new style in the 1950s, when swimmers tried to find ways to swim faster. The two main innovations were the recovery of the double arm over the water and the kick of Delfín. The butterfly nothing with a undulating movement similar to the dolphin on the surface of the water. The arms throw underwater simultaneously and recover on the water, also simultaneously. Both hands must get out of the water at the same time in each blow. During each pull of the arm, swimmers make two kicks of dolphin, one when the hands enter the water and another when the hands come out of the water. The feet of a swimmer must kick up and down, ideally with their feet together. While the vast majority of swimmers raise their heads and shoulders to breathe, some swimmers breathe to the sides, as in the freestyle.
The butterflies starts with a dive looking forward, and the swimmers must finish each turn touching the wall with both hands simultaneously, in the same horizontal plane. At the beginning of each return, swimmers will kick underwater dolphins, but must break the surface of the head with their heads or less. In several laps races, swimmers will turn open, instead of inverted turns.
Individual Medley Events
Individual potpourri, or im (pronounced ‘eye-em’), is a race in which swimmers swim every stroke for a quarter of the total distance of the race. During each part of the event, swimmers must swim the styles legally. For example, swimmers must finish butterfly and braz. The strokes in this order should also swim: butterfly, back, fashion, freestyle. Instant messaging events begin with an immersion looking forward.
Relays
In a relay, four swimmers compete as a team. A swimmer can swim only once in a relay and must swim a quarter of the total distance of the race. In a free -style relay, all swimmers swim in a freestyle. In a combined relay, each swimmer performs a different style. In a combined relay, the blows must swim in this order: back, fashion, butterfly, freestyle.
Free -style relays begin with an immersion looking forward, while combined relays begin with a back beginning. All other swimmers of a relay can start with a "rolling" exit, provided they do not leave the blocks before their partner touches the wall. (In the rolling start, swimmers stop at the back of the output block and generate impulse by balancing their arms and step towards the front of the block).
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