1. When applying the NASM OPT™ Model, which acute variable would be most appropriate for improving muscular endurance in the stabilization phase? A) High reps, low intensity B) Low reps, high intensity C) Moderate reps, moderate intensity D) Low reps, moderate intensity Correct Answer: A Rationale: The stabilization phase focuses on enhancing muscular endurance and neuromuscular efficiency, which is best achieved through high repetitions with low intensity. 2. In the strength phase of the NASM OPT™ Model, what is the recommended rest interval between sets for hypertrophy training? A) 0-30 seconds B) 30-60 seconds C) 60-90 seconds D) 90-120 seconds Correct Answer: C Rationale: For hypertrophy training within the strength phase, a rest interval of 60-90 seconds allows for sufficient recovery to promote muscle growth while maintaining a level of intensity. 3. Which tempo is most suitable for a client in the power phase of the NASM OPT™ Model when performing plyometric exercises? A) 4/2/1 B) 2/0/2 C) X/X/X (explosive) D) 1/1/1 Correct Answer: C Rationale: The power phase requires explosive movements to enhance power. An X/X/X tempo indicates a rapid and forceful action which is essential for plyometric exercises.