The Claim
Doing calf raises with your knees straight (standing on toes) makes the inner part of your calf muscle grow more than doing them with your knees bent (seated), because the muscle is stretched more.
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.
Doing calf raises with your knees straight (standing on toes) makes the inner part of your calf muscle grow more than doing them with your knees bent (seated), because the muscle is stretched more.
See the scientific wording
Straight-leg toe press exercises are likely to produce greater hypertrophy in the medial gastrocnemius compared to seated calf raises in trained young adults after 8 weeks of training, due to the knee-extending position placing the muscle under greater stretch.
What the research says
1 studyStudy: Exercise Selection Differentially Influences Lower Body Regional Muscle Development
This study found that doing calf raises with your knees straight (toe press) made the inner part of your calf muscle grow more than doing them with your knees bent (seated calf raise), which matches the claim.
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.