You'll never look at a tennis player's racket arm the same way again 🎾 #Shorts #Wimbledon #Sports

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Субтитры (30)

0:00Tennis divides [music] the body in two.

0:02Powerful impact forces are experienced

0:04far more frequently by Freya's racket

0:07arm.

0:08While her body looks symmetrical from

0:10the outside, the bones in her racket arm

0:13are 20% thicker and contain more bone

0:16mineral than her other arm. Her joints

0:19act like shock absorbers, taking [music]

0:21up the extreme forces her arm

0:23experiences repeatedly as she hits her

0:25shots.

0:26>> We have to really focus on

0:29keeping the balance right. If you get

0:31too much on one side, then it can really

0:33throw things off.

0:34>> Skeletal muscle is [music] the most

0:35adaptable tissue in the human body.

0:38Muscle fiber cells contain more than one

0:40nucleus.

0:42When muscles are worked hard, special

0:45satellite cells are activated.

0:48They divide.

0:50One of these cells then [music] fuses

0:51with the muscle fiber itself.

0:54Now, with added nuclei, the muscle fiber

0:57cell builds [music] more myofibrils,

1:00increasing the size of both itself and

1:02our muscles, giving Freya more power for

1:05her shots.

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