指伸肌怎么了
Extensor Digitorum
Extensor digitorum
这块肌肉是什么
从肱骨外上髁分成四条腱到手背，伸直食指到小指。
为什么会不舒服
打字抬指；反手；腕长时间背伸。
常见不适表现
前臂外侧中部酸；伸直手指时手背发紧；握拳再张开觉得迟缓。
缓解方法
手臂伸直，手指屈向掌心，另一只手轻轻帮腕掌屈，停20秒。
相邻的肌肉
Extensor digitorum
Outer forearm · Common
What this muscle is
From the outer bump of the humerus at the elbow it splits into four tendons to the back of the hand. It straightens the index, middle, ring, and little fingers.
Why it gets uncomfortable
Lifting the fingers while typing; a backhand; the wrist bent back for a long time.
How it usually feels
The middle of the outer forearm feels sore; the back of the hand tightens when you straighten the fingers; opening the hand after a fist feels slow.
What helps
Straighten the arm, bend the fingers toward the palm, and with the other hand gently help the wrist bend forward. Hold 20 seconds.
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.
模型：BodyParts3D，© The Database Center for Life Science，CC BY 4.0