Muscles and Fiber Types

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Presentation transcript:

Muscles and Fiber Types

Types of Muscle Tissue Glycotic Muscle: Remembering Biology: Mostly Fast Fibers Low in myoglobin Low in mitochondria Contract quickly Fatigue quickly Remembering Biology: What is the role of the mitochondria? Why would its presence be limited in glycotic muscle? Which type of muscle would have a higher capillary density? Myoglobin stores oxygen Mitochondria uses oxygen to produce ATP Oxidative Muscle: Mostly Slow Fibers Lots of myoglobin Lots of mitochondria Contract slowly Fatigue slowly

chicken analogy Chickens stand around all day long Chicken legs are dark meat Chickens have short burst of wing flapping Chicken breasts are white meat

Data tends to show that fast twitch muscle can be changed to slow switch muscle trough endurance training.