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July 22, 2025Journal of Sports SciencesOpen Access

The effect of eccentric phase duration on maximal strength, muscle hypertrophy and countermovement jump height: A systematic review and meta-analysis

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Authors

CAChristian Houmann AmdiAKAndrew King

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Overview

Meta-analysis reveals eccentric phase duration impacts jump height in resistance training, suggesting variations in strength outcomes.

Key Points

  • Shorter eccentric phase (SEG) significantly improved countermovement jump height with moderate certainty.
  • Results indicated SEG leads to enhanced jump height (g = -0.73), while strength changes were uncertain.
  • Longer eccentric phase (LEG) showed similar or better strength gains in trained individuals (g = 0.33).
  • Research highlights the need for further studies to clarify the effects of eccentric phase duration on training outcomes.

Cite This Study

Amdi et al. (2025) studied this question.

synapsesocial.com/papers/689a0614e6551bb0af8cd73bhttps://doi.org/10.1080/02640414.2025.2535198
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