causal
Analysis v1
Strong Support
If you lift weights until you can't do another rep during squats, you'll feel more tired and jump lower afterward than if you stopped before reaching failure—even if you did the same total amount of lifting. This drop in performance can last up to half an hour.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Acute effects of equated volume-load resistance training leading to muscular failure versus non-failure on neuromuscular performance
Randomized Controlled Trial
Human
2020 MayThe study found that lifting weights until you can't do another rep hurts your jumping ability more and for longer than stopping before failure—even when you do the same total amount of lifting. So yes, going all-out makes you slower and weaker for up to half an hour after.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.