Summary: Potent Myofiber Hypertrophy During Resistance Training In Humans Is Associated With...

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Read the summary and the most important questions on Potent myofiber hypertrophy during resistance training in humans is associated with satellite cell-mediated myonuclear addition: a cluster analysis

  • 1 Introduction

  • Is the myonuclear domain a fixed entity?

    No, it changes with to volume changes.
  • What are the main activating factors of satellite cells?

    • local and systemic growth factors
    • mechanical load
  • Which genes, involved in satellite cell regulation, were differentially regulated according to cluster?

    • MGF (activation of satellite cells)
    • myogenin (late differentiation)
    • cyclin D1 (cell cycle progession)
  • What was the main hypothesis of this study?

    How well myofibrils hypertrophy is driven by the size of the pool of satellite cells.
  • 2 Methods

  • What was the main clustering variable?

    Cross sectional area of the m. vastus lateralis.
  • How often did the participants perform resistance exercise over the course of 16 weeks?

    3/week
  • How were satellite cells identified?

    By using an antibody to the neural  cell adhesion molecule (NCAM)
  • What growth factor was examined?

    IGF-1 including MGF
  • 3 Results

  • What can be said about the effect of 16 weeks of resistance training in adults on fiber typing ?

    There was a slight shift from type 2x to type 2a
  • 3.3 Population of muscle satellite cells

    This is a preview. There are 1 more flashcards available for chapter 3.3
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  • What was found about the baseline amount of satellite cells?

    Xtr > Mod > Non
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