The Different Types of Muscle Fibers: A Complete Guide to Strength, Speed, and Endurance Research & Science The Different Types of Muscle Fibers: A Complete Guide to Strength, Speed, and Endurance Lucas Silveira December 11, 2025 When athletes talk about being “built for speed” or “born with endurance,” they’re really talking about muscle... Read More Read more about The Different Types of Muscle Fibers: A Complete Guide to Strength, Speed, and Endurance