More Sets Don’t Make Muscles Bigger Longer

Original Title

Don't Sweat the Swelling: Exercise Volume's Transient Effects in Trained Males.

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Summary

Lifting more weights makes you feel more tired and less recovered, but your muscles don’t stay swollen or weaker — they bounce back in a day.

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Surprising Findings

Even after 21 sets of lower-body work, muscle thickness and echo-intensity returned to baseline within 24 hours—same as 7 sets.

Most fitness culture assumes more volume = more muscle damage = longer recovery. This study shows that in trained individuals, the body repairs swelling and fluid shifts incredibly fast—regardless of effort.

Practical Takeaways

If you’re feeling overly fatigued after high-volume sessions, cut back—your muscles aren’t getting more benefit, and your nervous system is paying the price.

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More Sets Don’t Make Muscles Bigger Longer | Fit Body Science