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Sports Medicine

, Volume 38, Issue 7, pp 527–540 | Cite as

Resistance Exercise Biology

Manipulation of Resistance Exercise Programme Variables Determines the Responses of Cellular and Molecular Signalling Pathways
  • Barry A. Spiering
  • William J. Kraemer
  • Jeffrey M. Anderson
  • Lawrence E. Armstrong
  • Bradley C. Nindl
  • Jeff S. Volek
  • Carl M. Maresh
Current Opinion

Abstract

Recent advances in molecular biology have elucidated some of the mechanisms that regulate skeletal muscle growth. Logically, muscle physiologists have applied these innovations to the study of resistance exercise (RE), as RE represents the most potent natural stimulus for growth in adult skeletal muscle. However, as this molecular-based line of research progresses to investigations in humans, scientists must appreciate the fundamental principles of RE to effectively design such experiments. Therefore, we present herein an updated paradigm of RE biology that integrates fundamental RE principles with the current knowledge of muscle cellular and molecular signalling. RE invokes a sequential cascade consisting of: (i) muscle activation; (ii) signalling events arising from mechanical deformation of muscle fibres, hormones, and immune/inflammatory responses; (iii) protein synthesis due to increased transcription and translation; and (iv) muscle fibre hypertrophy. In this paradigm, RE is considered an ‘upstream’ signal that determines specific downstream events. Therefore, manipulation of the acute RE programme variables (i.e. exercise choice, load, volume, rest period lengths, and exercise order) alters the unique ‘fingerprint’ of the RE stimulus and subsequently modifies the downstream cellular and molecular responses.

Keywords

Satellite Cell Resistance Exercise Muscle Growth Exercise Load Satellite Cell Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was supported, in part, by graduate student research grants awarded by the National Strength and Conditioning Association and the University of Connecticut. The authors would like to thank Dr Daniel A. Judelson for critically reading the manuscript and providing thoughtful comments, and Dr P. Courtney Gaine for her insightful discussions. The authors have no conflicts of interest directly relevant to the contents of this article.

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Copyright information

© Adis Data Information BV 2008

Authors and Affiliations

  • Barry A. Spiering
    • 1
  • William J. Kraemer
    • 1
  • Jeffrey M. Anderson
    • 1
  • Lawrence E. Armstrong
    • 1
  • Bradley C. Nindl
    • 1
  • Jeff S. Volek
    • 1
  • Carl M. Maresh
    • 1
  1. 1.Human Performance Laboratory, Department of KinesiologyUniversity of ConnecticutStorrsUSA

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