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👨‍⚕️ Dr. Boss 的聊天室|Episode 12:伸肌群

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👨‍⚕️ Dr. Boss 的聊天室|Episode 12:伸肌群(Extensor Muscles)

Boss Doctor’s Chatroom|Episode 12: Extensor Muscles of the Fingers

副標 / Subtitle

👨‍⚕️ Dr. Boss × 🐨 Koala | 打開手指與穩定控制的關鍵

👨‍⚕️ Dr. Boss × 🐨 Koala | The Key to Opening and Stabilizing Fingers

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🟦 對話稿 Dialogue(中英對照)

Koala:

Boss 醫生,我們可以握拳,那為什麼也能把手指打開?

Doctor Boss , we can make a fist, but how do we open our fingers?

Boss 醫生:

這就是伸肌群的作用,它們讓手指伸直與打開。

That’s the job of the extensor muscles, which straighten and open the fingers.

Koala:

所以屈肌負責彎曲,伸肌負責伸直?

So flexors bend fingers and extensors straighten them?

Boss 醫生:

完全正確,兩者互相平衡,才能讓手指精準控制。

Exactly, both work in balance for precise finger control.

Koala:

如果伸肌無力會怎樣?

What happens if extensors are weak?

Boss 醫生:

手指會難以伸直,甚至影響抓握穩定性。

Fingers may not fully extend, affecting grip stability.

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🟦 結構篇 Structure(中英對照)

Boss 醫生:

伸肌群主要位於前臂後側:

Extensor muscles are located on the back of the forearm:

肌肉 Muscles

伸指肌 Extensor digitorum

伸拇肌 Extensor pollicis longus

伸小指肌 Extensor digiti minimi

尺側伸腕肌 Extensor carpi ulnaris

橈側伸腕肌 Extensor carpi radialis

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起點 Origin

肱骨外上髁 Lateral epicondyle of humerus

前臂骨 Forearm bones

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止點 Insertion

指背 Extensor expansion of fingers

手腕與掌骨 Metacarpals

拇指指骨 Thumb phalanges

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功能 Function

伸直手指 Extend fingers

打開手掌 Open hand

穩定手腕 Stabilize wrist

協助手部精細動作 Assist fine motor control

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🟦 日常使用 Daily Use(中英對照)

Koala:

伸肌群平常什麼時候會用到?

When do we use extensor muscles daily?

Boss 醫生:

只要你打開手或放開東西,就會用到。

Whenever you open your hand or release objects.

舉例 Examples:

放開物品 Releasing objects

打字 Typing

使用滑鼠 Using a mouse

彈琴 Playing piano

手指伸展 Stretching fingers

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🟦 習慣與保養 Habits & Care(中英對照)

Boss 醫生:

伸肌群疲勞常見原因:

Common causes of extensor muscle fatigue:

長時間滑手機 Excessive phone use

手腕姿勢不良 Poor wrist posture

重複手指動作 Repetitive finger movements

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改善方式 Tips for Improvement:

手背伸展 Wrist extensor stretch

輕柔按摩前臂後側 Massage back of forearm

避免長時間固定姿勢 Avoid prolonged static posture

熱敷放鬆 Warm compress

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🟦 小知識 Mini Note(中英對照)

Koala:

為什麼滑手機久了手背會痠?

Why does the back of the hand feel sore after phone use?

Boss 醫生:

因為伸肌群長時間維持手指穩定,導致肌肉疲勞。

Because extensor muscles work continuously to stabilize fingers, causing fatigue.


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