The Claim
Performing resistance training exclusively at long muscle lengths (lengthened partials) results in greater gastrocnemius muscle hypertrophy compared to performing resistance training through a full range of motion or exclusively at shortened muscle lengths.
What the research says
Challenges is higher
Challenge is ahead, but a single strong supporting 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 weightlifting exercises by only moving the weight through the longest part of the stretch actually builds more calf muscle than lifting through the full range or only the shortened part.
See the scientific wording
Resistance training performed exclusively at long muscle lengths (lengthened partials) produces greater gastrocnemius hypertrophy than full range of motion or shortened partial training.
What the research says
2 studiesThe study compared training with full movements to training that only used the stretched part of the muscle, and found they built muscle equally well. This means doing only the stretched part does not actually make your muscles grow bigger than normal full movements.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.