Crossfit Trainer Practice Test Level 1

Which muscle groups are included in the "power zone"?

1. Arms, shoulders, and back

2. Hip flexors, hip extensors, spinal erectors, and quads

3. Chest, triceps, and lats

4. Abs, obliques, and lower back

The correct answer is: Hip flexors, hip extensors, spinal erectors, and quads

The "power zone" typically refers to the muscle groups that are primarily engaged in producing and transferring force during functional movements, especially in the context of CrossFit training. The hip flexors, hip extensors, spinal erectors, and quads play a critical role in powerful movements like squats, deadlifts, Olympic lifts, and other dynamic exercises that require strength and stability. Hip flexors and hip extensors are essential for hip movement and power generation as they enable the body to perform explosive movements effectively. The spinal erectors help maintain posture and stability during lifting, allowing for safe biomechanics, while the quads are key in exercises that rely on leg strength, such as squats and cleans. Together, these muscle groups form a foundation of strength and power that supports various CrossFit movements, making option B the most accurate choice in defining the "power zone."