Type 1 and Type 2 Muscle Fibers

Duration: 9:08
Description: Narrated lecture with writing on a black screen. Provides basic description of both types, including what the author calls the “golden rule” to remember the difference between the fibers.

Muscle Fibers Explained

Duration: 3:13
Description: Narrated lecture with writing on a white board. Describes the three types of muscle fibers, including name, function, etc. Might be a bit of a simplisting explanation, but it will give you a good foundation for learning more. Be aware that some of your textbooks will name the three fibers Type 1, Type IIa and Type IIb. The author uses Type IIx in place of Type IIb.