The Claim
A one-week complete cessation of resistance training during a 9-week high-volume program has no meaningful effect on lower body muscle hypertrophy in young, resistance-trained adults, as muscle thickness changes in the quadriceps and triceps surae were similar between groups with posterior probabilities near 0.5.
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 young adults who regularly lift weights, taking a one-week break from training during a nine-week program does not change the thickness of muscles in the lower body compared to those who train continuously.
See the scientific wording
A one-week complete cessation of resistance training during a 9-week high-volume program has no meaningful effect on lower body muscle hypertrophy in young, resistance-trained adults, as muscle thickness changes in the quadriceps and triceps surae were similar between groups with posterior probabilities near 0.5.
Even when training stops for a week, muscle cells keep building new proteins at a rate that matches what's needed to maintain size because the signals that tell them to grow stay active, and the repair cells stay ready but don't activate unnecessarily.
What the research says
1 studyTaking a one-week break from leg workouts halfway through a nine-week training program didn’t stop people from building leg muscle — they grew just as much as those who trained without stopping.
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.