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Related Experiment Videos

Muscle strength and its development. New perspectives.

R M Enoka1

  • 1Department of Exercise, University of Arizona, Tucson.

Sports Medicine (Auckland, N.Z.)
|September 1, 1988
PubMed
Summary
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Strength gains from training are not solely due to muscle growth but significantly involve neural adaptations. The nervous system plays a crucial role in developing and expressing strength, even without changes in muscle size.

Area of Science:

  • Exercise physiology
  • Neuroscience
  • Motor control

Background:

  • Skeletal muscle adapts to strength training, leading to morphological changes like increased muscle size.
  • Strength development is not exclusively dependent on muscle hypertrophy; neural factors are critical.
  • The motor system, particularly the nervous system, is paramount for strength expression and adaptation.

Purpose of the Study:

  • To review the significant role of the nervous system in strength development.
  • To highlight neural contributions to strength gains, especially in short-term training.
  • To explore specific topics demonstrating neural importance in strength.

Main Methods:

  • Review of existing literature on strength training and neural adaptations.

Related Experiment Videos

  • Analysis of electromyostimulation, cross-training effects, and EMG-force relationships.
  • Examination of evidence from various research paradigms.

    • Main Results:

    • Strength increases can occur without muscle size changes, indicating neural involvement.
    • Neural adaptations are essential for strength development, potentially more so than morphological changes.
    • Electromyostimulation, cross-training, and EMG-force relationships exemplify neural contributions.

    Conclusions:

    • The nervous system is a primary driver of strength development.
    • Neural mechanisms significantly contribute to short-term strength gains.
    • Human strength is influenced by multiple neurophysiological processes, underscoring the nervous system's importance.