Why going all-out in squats makes you jump worse longer

Original Title

Acute effects of equated volume-load resistance training leading to muscular failure versus non-failure on neuromuscular performance

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Summary

When guys did squats until they couldn't do another rep, they jumped lower and with less power afterward than when they stopped before exhaustion — even if they did the same total work.

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Surprising Findings

Training to failure caused more fatigue than non-failure training even when total volume, intensity, and rest were perfectly equalized.

Most people assume fatigue is directly tied to total work done — but this study proves that the *strategy* of pushing to failure, not the volume, is the main driver of acute fatigue.

Practical Takeaways

If you train for sports, power, or multiple workouts per day, avoid training to failure on compound lifts like squats or deadlifts — stop 1–3 reps short to preserve performance for the next session.

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54%
Moderate QualityOverall Score

Publication

Journal

Journal of Exercise Science and Fitness

Year

2020

Authors

F. Fonseca, Bruna Costa, M. E. C. Ferreira, S. Paes, Dalton de Lima-Júnior, Witalo Kassiano, E. Cyrino, Petrus Gantois, L. Fortes

Open Access
15 citations
Analysis v1
Why going all-out in squats makes you jump worse longer — Quality Score & Summary | Fit Body Science