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36 terms

Ch. 9 Muscle fiber types

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Slow
Speed of contraction for slow oxidative fibers is ___
Fast
Speed of contraction for fast oxidative fibers is ___
Fast
Speed of contraction for fast glycolytic fibers is ___
Slow
Myosin ATPase activity for slow oxidative fibers is ___
Fast
Myosin ATPase activity for fast oxidative fibers is ___
Fast
Myosin ATPase activity for fast glycolytic fibers is ___
Aerobic
Primary pathway for ATP synthesis for slow oxidative fibers is ___
Aerobic
Primary pathway for ATP synthesis for fast oxidative fibers is ___ (some anaerobic glycolyis)
Anaerobic glycolysis
Primary pathway for ATP synthesis for fast glycolytic fibers is ___
High
Myoglobin content for slow oxidative fibers is ___
High
Myoglobin content for fast oxidative fibers is ___
Low
Myoglobin content for fast glycolytic fibers is ___
Low
Glycogen stores for slow oxidative fibers is ___
Intermediate
Glycogen stores for fast oxidative fibers is ___
High
Glycogen stores for fast glycolytic fibers is ___
First
Recruitment order for slow oxidative fibers is ___
Second
Recruitment order for fast oxidative fibers is ___
Third
Recruitment order for fast glycolytic fibers is ___
Slow
Rate of fatigue for slow oxidative fibers is ___
Intermediate
Rate of fatigue for fast oxidative fibers is ___ (moderately fatiged-resistant)
Fast
Rate of fatigue for fast glycolytic fibers is ___
Red
Color of slow oxidative fibers is ___
Red, pink
Color of fast oxidative fibers is ___ to ___
White
Color of fast glycolytic fibers is ___
Small
Fiber diameter of slow oxidative fibers is ___
Intermediate
Fiber diameter of fast oxidative fibers is ___
Large
Fiber diameter of fast glycolytic fibers is ___
Many
Mitochondria of slow oxidative fibers is ___
Many
Mitochondria of fast oxidative fibers is ___
Few
Mitochondria of fast glycolytic fibers is ___
Many
Capillaries of slow oxidative fibers is ___
Many
Capillaries of fast oxidative fibers is ___
Few
Capillaries of fast glycolytic fibers is ___
Slow oxidative fibers
Which type of muscle fiber is best suited for endurance type activities?
Fast oxidative fibers
Which type of muscle fiber is best suited for sprinting and walking?
Fast glycolytic fibers
Which type of muscle fiber is best suited for short-term intense or powerful movements?