The Claim
In individuals with stage-3 chronic kidney disease, resistance training performed three times per week for 12 weeks results in significantly greater increases in vastus lateralis anatomical cross-sectional area and pennation angle compared to resistance training performed once 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.
In people with stage-3 chronic kidney disease, doing resistance training three times a week for 12 weeks leads to larger increases in muscle thickness and fiber angle compared to training once a week.
See the scientific wording
In individuals with stage-3 chronic kidney disease, resistance training performed three times per week for 12 weeks leads to significantly greater increases in vastus lateralis anatomical cross-sectional area (30.8% vs. 13.2%) and pennation angle (36.3% vs. 17.5%) compared to training once per week, indicating that higher training frequency more effectively promotes muscle architectural adaptation in this population.
When muscles are worked more often under heavy load, the repeated pulling on muscle fibers sends stronger signals that turn on protein-building machinery. This causes muscle fibers to grow thicker and reorganize at an angle that lets more fibers fit in the same space, making the muscle bigger and stronger.
What the research says
1 studyFor people with moderate kidney disease, doing leg workouts three times a week made their thigh muscles thicker and more organized than working out once a week — even though both helped them feel better and get stronger.
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.