If you're a young guy who hasn't lifted weights before and you do pec deck exercises for 12 weeks, you'll probably get about 43–46% stronger, no matter if you do just one set or three sets each time.
Claim Language
Language Strength
definitive
Uses definitive language (causes, prevents, cures)
The verb 'increases' is used in a direct, unqualified way, implying a guaranteed outcome rather than a possibility or association. The phrase 'regardless of whether one or three sets are performed' further reinforces a deterministic claim about the effect.
Context Details
Domain
exercise_science
Population
human
Subject
untrained young men
Action
increases
Target
maximal strength
Intervention Details
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.
Evidence from Studies
Supporting (1)
Pectoralis Clavicular and Sternocostal Thicknesses Increase Similarly in Response to One and Three Sets of Pec Deck Resistance Training in Untrained Young Men
The study found that doing either one or three sets of pec deck exercises for 12 weeks made untrained guys about 43–46% stronger, so it doesn’t matter how many sets you do—you still get the same strength boost.