Proximal muscle atrophy

…In muscle atrophy of the neck, atrophy of the sternocleidomastoid process is particularly common. Muscle atrophy of the limbs can be broadly divided into proximal and distal muscle atrophy. Proximal muscle atrophy is atrophy of muscles close to the trunk, such as the shoulders, upper arms, lower back, and thighs, while distal muscle atrophy is muscle atrophy that appears in areas such as the forearms, hands, lower legs, and feet. …

*Some of the terminology that refers to "proximal muscle atrophy" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…頸部の筋萎縮では，とくに胸鎖孔突起の萎縮が見つかりやすい。体肢の筋萎縮は，大きく近位性筋萎縮と遠位性筋萎縮に分けられる。近位性筋萎縮は，肩や上腕，腰，大腿など，体幹に近い部分の筋肉の萎縮であり，遠位性筋萎縮は，前腕，手，下腿，足などの部分に現れる筋萎縮である。…

※「近位性筋萎縮」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報