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title: Delayed Onset Muscle Soreness
modified: 2026-08-27
---

**延遲性肌肉痠痛 (Delayed Onset Muscle Soreness, DOMS)** is the muscle pain, tenderness, and stiffness that appears **24–72 hours** after unaccustomed or intense exercise.

1. 肌肉細胞組織受到微小的撕裂和損傷所引起
2. 主要發生在：
	* **肌纖維（muscle fiber）**
	* **肌小節（sarcomere）**
	* 包覆肌肉的**[結締組織/筋膜（connective tissue / fascia）](fascia.md)**
3. ⭐️ 和「乳酸堆積」無關。
	* 乳酸在運動後 1 小時內就被代謝掉：**Lactate spikes during exercise** and is **cleared within about an hour** after you finish.
	* 甚至是能量再利用的來源：It is **metabolized and reused as fuel** — a valuable energy source for the heart, brain, and even working muscles (the **lactate shuttle**), not a toxic waste product.
	* 和 DOMS 的時間軸完全對不上：DOMS **peaks 24–72 hours later**, long after lactate is gone. The two simply **don’t overlap on the same timeline**.
4. DOMS is most likely after:
	* **Unaccustomed exercise** — a movement your muscles haven’t done recently (novel stimuli).
	* **Eccentric-dominant work** — downhill running, plyometrics, and the lowering phase of lifts.
	* **A big jump in volume or intensity** — especially after a layoff or a long gap between sessions.

5. DOMS ≠ Muscle Growth（痠痛 ≠ 進步）

	> Soreness is not a reliable marker of progress, adaptation, or muscle growth (hypertrophy). The actual adaptation happens during recovery, not during the workout.

	* You can get **very sore without building much muscle** (e.g., after a novel, low-volume eccentric session).
	* You can **build muscle with little or no soreness** (e.g., once adapted, moderate-load training near failure).
	* Chasing “pain = gain” can push you into **overtraining and junk volume**.