The Claim
In moderately trained men, systolic blood pressure responses during bench press exercise are not significantly different across sets of 3, 15, and 24 repetitions at 70% one-repetition maximum when inter-repetition rest is individualized, indicating that cardiovascular strain is driven by fatigue accumulation rather than repetition count.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In moderately trained men, lifting weights with 3, 15, or 24 repetitions at 70% of their maximum strength produces the same increase in systolic blood pressure when rest between reps is tailored to the individual, and the level of cardiovascular strain depends on how fatigued the muscles become, not how many repetitions are performed.
See the scientific wording
In moderately trained men, systolic blood pressure responses during bench press are not significantly different between 3, 15, and 24 repetitions at 70% one-repetition maximum when inter-repetition rest is individualized, suggesting cardiovascular strain is driven by fatigue accumulation rather than repetition count.
When a person does bench presses with short breaks between each rep, their muscles get enough time to clear waste products and restore energy, which keeps blood flowing normally. This prevents the heart from working harder just because more reps are done — instead, the heart responds only to how tired the muscles become.
What the research says
1 studyStudy: Effects of Bench Press Volume on Performance, Recovery, and Physiological Response.
When trained men did bench presses with rest breaks adjusted based on how tired they felt, their blood pressure went up the same amount whether they did 3, 15, or 24 reps. This means it’s not how many reps you do that makes your heart work harder—it’s how tired you get.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.