Crossfit Trainer Practice Test Level 1

What is the primary focus during a hip extension GHD exercise?

1. Static hips, dynamic trunk

2. Dynamic hips, static trunk

3. Full ROM with no attention to the lumbar curve

4. To engage only the back muscles

The correct answer is: Dynamic hips, static trunk

The primary focus during the hip extension GHD (Glute-Ham Developer) exercise is on dynamic movement of the hips while maintaining a static position of the trunk. This exercise primarily targets the posterior chain, which includes the hamstrings, glutes, and the lower back. By emphasizing dynamic hip movement, the GHD exercise effectively allows for the recruitment of these muscles through a full range of motion while the trunk remains stable. By keeping the trunk static, the core and lower back muscles are engaged to maintain a neutral spine, ensuring proper alignment and reducing the risk of injury. This positioning aids in focusing the effort on the hip extension, maximizing the exercise's effectiveness for strengthening the glutes and hamstrings. In contrast to this focus on the hips, other options inaccurately suggest different priorities or approaches, which may not effectively target the intended muscle groups or could lead to improper form during the exercise.