Muscle Fiber Video

Muscles are made of many individual muscle fibers. Muscle fibers are long, cylindrical cells giving skeletal muscles their striped or striated appearance. They are the primary component responsible for muscle contraction. There are two basic types of muscle fibers. Slow-twitch fibers, also called ST or Type I fibers, have a slow contraction time, but a high resistance to fatigue. Slow-twitch muscles are used for aerobic muscle activities requiring a low-level, sustained force, such as sitting or walking. Fast-twitch fibers, also called FT or Type II fibers, have a quick contraction time, but are quick to fatigue. Fast-twitch muscles are used for short anaerobic activities requiring a high-force, such as sprinting or jumping. Interested in learning more about muscle fiber? Check out the following muscle fiber videos. For additional information, also see our muscle fiber reference materials.

Custom Search Muscular System Video: Muscular System Video Index Abdominal Muscle Video Ankle Muscle Video Arm Muscle Video Back Muscle Video Cardiac Muscle Video Cartilage Video Elbow Muscle Video Foot Muscle Video Hand Muscle Video Head and Face Muscle Video Hip Muscle Video Joint Video Knee Muscle Video Leg Muscle Video Ligament Video Motor Development Video Muscle and the Nervous System Video Muscle Control Video Muscle Exercise Video Muscle Fiber Video Muscle, Tendon, Bone Connection Video Muscle Type Video Muscular System Overview Video Neck Muscle Video Reflexes Video Shoulder Muscle Video Thoracic Muscle Video Vertebral Muscle Video Muscular System Index Human Body Index Human Body Video Index Science Video Science Main Index		Muscles are made of many individual muscle fibers. Muscle fibers are long, cylindrical cells giving skeletal muscles their striped or striated appearance. They are the primary component responsible for muscle contraction. There are two basic types of muscle fibers. Slow-twitch fibers, also called ST or Type I fibers, have a slow contraction time, but a high resistance to fatigue. Slow-twitch muscles are used for aerobic muscle activities requiring a low-level, sustained force, such as sitting or walking. Fast-twitch fibers, also called FT or Type II fibers, have a quick contraction time, but are quick to fatigue. Fast-twitch muscles are used for short anaerobic activities requiring a high-force, such as sprinting or jumping. Interested in learning more about muscle fiber? Check out the following muscle fiber videos. For additional information, also see our muscle fiber reference materials.