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The effect of squat training with different eccentric contraction tempos on lower limb muscle strength

Author

Listed:
  • Mushuai Hao
  • Haonan Qi
  • Liang Zhao
  • Wei Han

Abstract

Objective: This study aims to investigate the impact of 8-week squat training with different eccentric contraction tempos on maximal squat strength, jump height, and sprint performance among university students majoring in sports training. Methods: Thirty participants were randomly assigned to either the 4/0/X/0 group, the 2/0/X/0, or the self-selected eccentric, isometric and inter-repetition tempo group (V/V/X/V), performing tempo-specific loaded squat training twice weekly for 8 weeks. Maximal squat strength, 30-meter sprint performance, countermovement jump (CMJ), and squat jump (SJ) heights were assessed before and after the intervention. A two-way repeated-measures ANOVA and effect size analysis were used to evaluate the training outcomes. Results: 1) For maximal squat strength, no statistically significant inter-group difference was detected (P > 0.05). All three groups exhibited significant within-group improvements relative to baseline (P V/V/X/V group (ES = 0.85)> 4/0/X/0 group (ES = 0.64). 2) For CMJ height, both the 2/0/X/0 and V/V/X/V groups showed significant improvement compared to pre-intervention (P V/V/X/V group (ES = 0.30) > 4/0/X/0 group (ES = −0.90). 3) SJ height results mirrored CMJ trends, with ES values ranking:2/0/X/0 group (ES = 1.09) > V/V/X/V group (ES = 0.34) > 4/0/X/0 group (ES = −0.83). 4) In 30-meter sprint performance, the 2/0/X/0 group demonstrated significant improvement (P

Suggested Citation

  • Mushuai Hao & Haonan Qi & Liang Zhao & Wei Han, 2026. "The effect of squat training with different eccentric contraction tempos on lower limb muscle strength," PLOS ONE, Public Library of Science, vol. 21(7), pages 1-17, July.
    • Handle: RePEc:plo:pone00:0354725
    DOI: 10.1371/journal.pone.0354725
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