Your spinal column is a very important collection of bones in your body. Without one, you can't stand up straight. It consist of 30 vertebrae, with interverbral discs inbetween.
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Interverbral discs
These interverbral discs consist of cartilage on the outside and a gelatinous core in the middle. These make movement inbetween the vertebrae possible and act as shock breakers.
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Spinal column
You spinal column has a double S-shape. Which evenly spreads the weight of your body across your back. Keeping a double S-shape by having a good posture wears the spinal column as little as possible.
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Good posture
It is always important to have a good posture, whenever you are sitting, standing, lying down or lifting. Keeping your back and your legs straight is very important.
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Posture while lifting
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Posture while using phone
When you have a wrong posture, a hunch can start to develop. This can be accelerated by using your phone in a wrong way. Keep in mind: keep your neck, back and legs in one continuous line.
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Homework
The homework for next week are the exercises of paragraph 4.5, including the summary and plus exercises.
Lesduur is: 30 min
