The Claim
Diet-induced weight loss in adults with overweight or obesity is associated with a 7.5% reduction in knee extensor strength, as measured by isokinetic dynamometry, based on pooled data from seven interventions involving 108 participants.
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.
Adults with overweight or obesity who lose weight through dieting experience a 7.5% decrease in knee extensor strength, as measured by isokinetic dynamometry.
See the scientific wording
Diet-induced weight loss in adults with overweight or obesity is associated with a 7.5% reduction in knee extensor strength, as measured by isokinetic dynamometry, based on pooled data from seven interventions involving 108 participants, suggesting a consistent negative impact on lower limb muscle function despite weight loss.
When a person eats less and loses weight, the body breaks down muscle tissue for energy, making the muscles in the front of the thigh smaller and weaker, which reduces the force they can produce when straightening the knee.
What the research says
1 studyWhen people with extra weight lose weight by eating less, their leg strength—especially the power to straighten the knee—goes down by about 7.5%, and this study found that exact number in a group of adults who lost weight through dieting.
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.