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You'll never look at a tennis player's racket arm the same way again ЁЯО╛ #Shorts #Wimbledon #Sports
You'll never look at a tennis player's racket arm the same way again ЁЯО╛ #Shorts #Wimbledon #Sports
рд╕реАрдЦрдиреЗ рдХрд╛ рдореЛрдб рдЪреБрдиреЗрдВ:
рдЙрдкрд╢реАрд░реНрд╖рдХ рджреЗрдЦреЗрдВ
рд╢рдмреНрдж рдЪреБрдиреЗрдВ
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рдЙрдкрд╢реАрд░реНрд╖рдХ (30)
0:00
Tennis divides [music] the body in two.
0:02
Powerful impact forces are experienced
0:04
far more frequently by Freya's racket
0:07
arm.
0:08
While her body looks symmetrical from
0:10
the outside, the bones in her racket arm
0:13
are 20% thicker and contain more bone
0:16
mineral than her other arm. Her joints
0:19
act like shock absorbers, taking [music]
0:21
up the extreme forces her arm
0:23
experiences repeatedly as she hits her
0:25
shots.
0:26
>> We have to really focus on
0:29
keeping the balance right. If you get
0:31
too much on one side, then it can really
0:33
throw things off.
0:34
>> Skeletal muscle is [music] the most
0:35
adaptable tissue in the human body.
0:38
Muscle fiber cells contain more than one
0:40
nucleus.
0:42
When muscles are worked hard, special
0:45
satellite cells are activated.
0:48
They divide.
0:50
One of these cells then [music] fuses
0:51
with the muscle fiber itself.
0:54
Now, with added nuclei, the muscle fiber
0:57
cell builds [music] more myofibrils,
1:00
increasing the size of both itself and
1:02
our muscles, giving Freya more power for
1:05
her shots.
