肱三头肌外侧头怎么了

Lateral Head of Triceps Brachii

Lateral head of triceps

上臂后外侧常见（训练后）

这块肌肉是什么

从肱骨后面连到尺骨鹰嘴，伸直肘关节。

为什么会不舒服

俯卧撑、臂屈伸做到底；上臂后外侧被椅背长时间压着。

常见不适表现

上臂后外侧一块酸胀；伸肘到尽头发硬；靠椅久了局部发木。

缓解方法

屈肘举手摸肩胛，或坐着把手臂举过头顶再屈肘。靠椅背时不要长时间压这块。

在三维人体上查看肱三头肌外侧头

相邻的肌肉

Lateral head of triceps

Back-outer upper arm · Common, after training

What this muscle is

From the back of the humerus to the olecranon of the ulna. It straightens the elbow.

Why it gets uncomfortable

Push-ups and dips taken all the way; the back-outer upper arm pressed for a long time by a chair back.

How it usually feels

A sore, full patch on the back-outer upper arm; hard when the elbow straightens to the end; locally numb after leaning on a chair for a long time.

What helps

Bend the elbow and reach toward the shoulder blade, or sit and lift the arm overhead, then bend the elbow. Do not press this spot against a chair back for a long time.

本内容为运动健康科普，仅供参考，不构成医疗建议；不适持续或加重请及时就医。 General movement and health information, not medical advice. See a doctor if it continues or gets worse.