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Forward head posture (FHP) is the anterior positioning of the cervical spine. This posture is sometimes called "Scholar's Neck", "Wearsie Neck", or "Reading Neck." It is a posture problem that is caused by several factors including sleeping with the head elevated too high, extended use of computers and cellphones, lack of developed back muscle strength and lack of nutrients such as calcium. () Possible negative effects include tingling and numbness in the arms, and a burning pain between the shoulder blades. ==Treatment== Treatment involves correcting the muscle imbalance. Stretching muscles that cause neck protrusion: *Lower cervical flexors: sternocleidomastoid, anterior and medial scalene muscles. *Upper cervical (capital) extensors: semispinalis capitis, longissimus capitis, splenius capitis, suboccipital muscles Strengthening muscles that cause neck retraction: *Lower cervical extensors: splenius cervicis, semispinalis cervicis, longissimus cervicis *Upper cervical (capital) flexors: longus capitis, Rectus capitis anterior, Suprahyoid muscles FHP commonly appears as a part of the Upper Crossed Syndrome and Thoracic outlet syndrome. Treatment of which involves stretching muscles in the front of the torso such as the pectoralis major, pectoralis minor while also strength training muscles in the back of the torso such as the rhomboids. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Forward head posture」の詳細全文を読む スポンサード リンク
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