Summary
Highlights
Clarification of key training terms: full range of motion, lengthened partials (moving through the lengthened portion of the lift), and shortened partials (moving through the shortened portion).
A study on 13 trained individuals found that while general growth was similar, lengthened partials provided moderate evidence for greater hypertrophy in the distal region of the muscle.
Reviewing existing studies suggests that lengthened partials are at least as effective as full range of motion, with potential for superior growth in specific regions. Training programs can effectively incorporate both techniques.
Discussion on shortened partials, which often produce slightly less overall growth than the other methods but can still contribute to muscle development, especially when the range of motion is extended.