Changes in Gene Expression in Response to Altered States of Activity - Endurance Training

4 important questions on Changes in Gene Expression in Response to Altered States of Activity - Endurance Training

What is thought to be a sufficient endurance exercise stimulus?

70-80% VO2max

What happens to the enzyme activity and energy consumption after endurance exercise?

  • upregulation of mitochondrial enzymes and proteins
  • upregulation of enzymes for FAO
  • upregulation of glucose transporter receptors

What happens to the MHC after endurance exercise?

subtle transformation from 2x to 2a, making the cross-bridge cycle more economical.
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What is the main reason endurance exercise improves aerobic economy?

Mitochondrial biosynthesis and upregulation of enzymes (citrate synthase) that make the aerobic pathway more economical.

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