The Claim
In resistance-trained young men, 8 weeks of volume-equated high- or low-repetition daily undulating periodization results in no significant increase in muscle thickness at the mid-portion of the lateral quadriceps, regardless of the training scheme.
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.
After 8 weeks of different types of weight training with the same total workload, muscle thickness in the middle of the outer thigh does not change in young men who are already trained in resistance exercise.
See the scientific wording
In resistance-trained young men, muscle thickness does not significantly increase in the mid-portion of the lateral quadriceps after 8 weeks of volume-equated high- or low-repetition daily undulating periodization, regardless of training scheme.
In already trained muscles, the rate at which new muscle proteins are made and old ones are replaced reaches a maximum limit. Adding more training volume or changing how heavy or light the weights are does not push this limit higher, so the muscle does not grow thicker.
What the research says
1 studyIn young men who already lift weights, doing either heavy or light lifts for 8 weeks didn’t make the middle part of their outer thigh get thicker—no matter how they structured their workouts.
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.