The Claim
In experienced resistance-trained men, increasing training frequency from two to four sessions per week for the same muscle groups, while equating weekly training volume, does not result in greater improvements in maximal strength as measured by 1RM in barbell back squat and bench press over an 8-week period, suggesting that training frequency alone may not be a primary determinant of strength gains in this population.
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.
If you're a guy who's been lifting weights for a while, working out each muscle four times a week doesn’t make you stronger than doing it twice a week—as long as you're doing the same total amount of work.
See the scientific wording
In experienced resistance-trained men, increasing training frequency from two to four sessions per week for the same muscle groups does not lead to greater improvements in maximal strength, as measured by 1RM in barbell back squat and bench press, when weekly training volume is equated over an 8-week period, indicating that frequency alone may not be a primary driver of strength gains in this population.
What the research says
1 studyStudy: Effects of training frequency on muscular strength for trained men under volume matched conditions
The study found that doing squats and bench press four times a week didn’t make men stronger than doing them twice a week, as long as the total work was the same. This matches the claim.
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.