During triceps cable extensions, allow your forearms to rise beyond parallel to maximize muscle stretch, thereby taking advantage of the constant tension provided by the cable.

noli's read

This advice is based on the principle of stretch-mediated hypertrophy (length-tension relationship). Research, notably a meta-analysis published in the 'Journal of Strength and Conditioning Research', confirms that training with a full range of motion, including a phase of loaded stretching, is superior for muscle hypertrophy. The notion that cables maintain constant tension is technically accurate, unlike free weights where tension can drop depending on the angle. However, the claim is presented as an absolute rule, whereas joint tolerance at the elbow can vary between individuals. While the stretch is indeed a key factor, it is not necessary to sacrifice stability or control to achieve an extreme range of motion. It is a solid recommendation for optimizing development, provided the movement remains pain-free.

the sources

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