Final answer:
A stretch zone involves extending or lengthening muscles, while massage manipulates soft tissues for therapeutic benefits like relaxation and pain relief.
Step-by-step explanation:
A stretch zone refers to a range of motion in which a muscle or group of muscles is extended or lengthened. Stretching can help improve flexibility, prevent injury, and enhance athletic performance. On the other hand, massage involves the manipulation of soft tissues in the body to provide therapeutic benefits such as relaxation, pain relief, improved circulation, and stress reduction.