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Range of motion

Range of motion is the joint travel an exercise covers, from the muscle's most lengthened position to its most contracted. A full range loads the muscle in its long position too, which is where the stimulus is largest, and that is why cutting it to lift more weight usually swaps the exercise for an easier one rather than making it harder.

Range of motion is the joint travel an exercise covers, from the muscle's most lengthened position to its most contracted. A full range loads the muscle in its long position too, which is where the stimulus is largest, and that is why cutting it to lift more weight usually swaps the exercise for an easier one rather than making it harder.

Also written as: ROM · full range of motion

In practice

It is the first variable to degrade as a client tires, and the one that most changes the log without changing the number: the same load through half the travel is not the same set.

The common mistake

Confusing full range with maximum range. The useful travel is the one that client's joint controls under load, and forcing past it adds no stimulus.

Program with these criteria, without the spreadsheet.