What is most accepted theory of muscle contraction?

Explanation

**Step-by-Step Solution:**

1. **Understanding Muscle Contraction**: Muscle contraction is a complex process that involves the interaction of various proteins within muscle fibers. The primary proteins involved are actin and myosin.

2. **Identifying the Theory**: The most accepted theory that explains how muscle contraction occurs is known as the "Sliding Filament Theory."

3. **Components of the Theory**:
- **Actin**: This is a thin filament that remains stationary during muscle contraction.
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