Final answer:
Agonist reversal training is part of the controlled mobility stage of Rood's sequence, a technique used in physical therapy to enhance stability, strength, and motor control.
Step-by-step explanation:
Agonist reversal training falls under the controlled mobility stage of Rood's sequence. This phase focuses on gaining control over movements that are becoming more dynamic and functional in nature. Agonist reversal is a neuromuscular facilitation technique in which an agonist muscle contracts to perform a movement with resistance, and then the same muscle sustains the contraction to control the return to the starting position against gravity or resistance. This is particularly useful in physical therapy to improve stability, strength, and coordination.