Kinesiology 2230A/B Lecture Notes - Lecture 2: Pyruvic Acid, Ejection Fraction, Cellular Respiration

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2230A/B
• Professor: Glen Belfry

Document Summary

High oxidative fibers (st) recruited immediately platue at about 80% of intensity. Low oxidative fibers (ft) not recruited until about 80% of intensity. Begin to see adaptation at about 80% of intensity. Greatest adaptation occurs at 85% (relatively high intensity) As continue to increase intensity the adaptation starts to fall off: as you increase the intensity the duration of an exercise will get shorter. To maintain st fibres you need a longer duration workout. Red vastus: (fog - fast oxidative glycolytic (2a)) Also starts adapting immediately to improve atp regeneration. As increase intensity it peaks around 85% of vo2 max. As intensity continues to increase adaptation doesn"t disappear o. Fibers can maintain the high adaptation at high intensities (plateaus) White vastus: (fg - fast glycolytic (2b) purely anaerobic fibers) Nothing happens at lower intensities b/c not being recruited. Fibers becomes more aerobic: around 85% start to see fibers adapting, only occurs at high intensities for maximal adaptation to occur.