Final answer:
An isokinetic dynamometer indeed helps therapists limit strength training to a pain-free range of motion, which is useful in rehabilitating injuries without causing further harm.
Step-by-step explanation:
The statement about an isokinetic dynamometer limiting strength training to a pain-free range of motion is true. An isokinetic dynamometer is a device used by training coaches and physical therapists to measure muscular strength and monitor progress. It allows for a controlled speed of movement and can be set so that exercise is conducted within a specific range of motion. This capability is particularly useful when dealing with injuries or conditions that could be exacerbated by movements that go beyond the pain-free range. By limiting the range to what is comfortable for the patient, the risk of additional injury is minimized while still allowing for the strengthening of the muscle through resistance.