The Claim
High-intensity resistance training at 90% one-repetition maximum does not result in greater delayed onset muscle soreness than moderate-intensity resistance training at 80% one-repetition maximum in male academy soccer players, despite a 58% reduction in total training volume.
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 male academy soccer players, lifting weights at 90% of maximum strength causes no more muscle soreness after exercise than lifting at 80% of maximum strength, even though the higher intensity workout uses 58% less total weight lifted.
See the scientific wording
High-intensity resistance training (90% 1RM) does not cause greater delayed onset muscle soreness than moderate-intensity training (80% 1RM) in male academy soccer players, despite using 58% less total volume.
When lifting very heavy weights, the nervous system recruits more muscle fibers at once and fires them more quickly, which allows the muscles to produce maximum force without needing to contract many times. This means less overall muscle tearing and inflammation, so soreness doesn't increase even when the weight is much heavier.
What the research says
1 studyEven though the heavy-lifting group lifted much less total weight, they felt just as sore as the group doing more reps with lighter weights — so lifting heavy but doing less doesn’t make you more sore.
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.