The Claim
In resistance-trained men, an eight-week program of resistance training produces similar increases in maximal strength (1RM) for the bench press, back squat, and close-grip seated row whether the muscle groups are trained once per week or five times per week.
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 already strong and lift weights, training each muscle group either once or five times a week for eight weeks will give you about the same strength gains on the bench press, squat, and row.
See the scientific wording
In resistance-trained men, eight weeks of resistance training results in similar increases in maximal strength (1RM) for bench press, back squat, and close-grip seated row regardless of whether muscle groups are trained once or five times per week.
What the research says
1 studyStudy: High Resistance-Training Frequency Enhances Muscle Thickness in Resistance-Trained Men.
The study found that whether guys trained each muscle group once or five times a week for eight weeks, they got just as strong on the bench press, squat, and row — so the claim is right.
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.