You bend your head forward by using the muscles in your neck and upper back to flex your cervical spine, bringing your chin towards your chest.
Here's a breakdown of the process:
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Muscles Involved: The primary muscles responsible for bending your head forward (neck flexion) are the sternocleidomastoid, scalenes, and longus colli muscles.
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The Action: These muscles contract, pulling the front of your head and neck downward. This action rotates the vertebrae in your cervical spine, allowing your head to bend forward.
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Control: The degree to which you bend your head forward is controlled by the amount of force exerted by these muscles and opposed by the muscles on the back of your neck (the extensors).
While the reference provides an exercise to improve neck strength, it doesn't directly describe how the bending motion occurs.
Here is an example of the exercise from the reference:
Exercise to resist forward head bending (isometric):
- Place your first two fingers of either hand on your forehead.
- Start to bend your head forward while using gentle pressure from your fingers to keep your head from bending.
- Hold for about 6 seconds.
- Repeat 8 to 12 times. This isometric exercise strengthens the neck muscles.
In summary, bending your head forward is a result of muscular action in the neck, specifically the contraction of muscles that pull the head and neck in that direction.