Wednesday, 3 April 2013

Butterfly stroke

butterfly stroke
muscles
The butterfly stroke is considered the most difficult stroke out of the four. It requires a lot of power and technique.
It uses most muscles in the body, mainly focusing on the arms, core and legs. 

ARMS: Arms make a rotating motion through the water to propel the body forward. This action builds the deltoid muscles and the trapezius muscles. 

CORE: the core muscles are those that make up the lower back and abdomen. without a strong, well developed core, swimming butterfly will be more difficult as the abdomen muscles provide the body strength to lift out of the water and to go back in and the latissimus dorsi muscles in the back help with stability of the motion.  

LEGS/BUTTOCKS: As the butterfly kick is different compared to the others, it uses a completely different set of muscles. since the legs are held together and are used as one, it requires more strength in the buttocks muscles. the hamstring muscles are very important in butterfly because the legs kick in a backward motion like that of a dolphins. 


movement: 
good technique is crucial to swim butterfly properly. 
butterfly originated from breaststroke, and was swum with the breaststroke kick. but then it separated to its own, individual stroke and was swum with a dolphin kick. this stroke has three major parts, the pull, the push, and the recovery. 

PULL: is when the swimmer starts with their arms out in front and pulls them around like in the breaststroke (or like they're tracing a keyhole shape). 

PUSH: is when the swimmer pushes their arms underneath their body, and then back up and over. 

RECOVERY: is when the swimmer swings the arms sideways across the water surface to the front (with the elbows straight) before diving back into the water. 


Link:
http://www.youtube.com/watch?v=w6n_SrjLypA 









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