Diagrammatically show the difference between three types if muscle fibers
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The 3 types of skeletal muscle fibres are:
Red / Slow (Type I fibres, 'slow twitch fibres')
Red / Fast (Type IIa fibres, 'fast oxidative fibres')
White / Fast (Type IIb fibres, 'fast glycolytic fibres')
Type I fibers are used for repeated contractions of low intensity like jogging, walking, bicycling.
Type IIa fibers are used in activity needing speed and strength like medium weight lifting and medium sprints.
Type IIb fibers are used in activity needing short bursts of speed and strength like heavy weight lifting and short sprints.
Red / Slow (Type I fibres, 'slow twitch fibres')
Red / Fast (Type IIa fibres, 'fast oxidative fibres')
White / Fast (Type IIb fibres, 'fast glycolytic fibres')
Type I fibers are used for repeated contractions of low intensity like jogging, walking, bicycling.
Type IIa fibers are used in activity needing speed and strength like medium weight lifting and medium sprints.
Type IIb fibers are used in activity needing short bursts of speed and strength like heavy weight lifting and short sprints.
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