CanFitPro Personal Training Specialist Practice Test

What are typical muscle imbalances in people with a posterior pelvic tilt?

1. Tight iliopsoas and weak rectus femoris

2. Weak iliopsoas and tight hamstrings

3. Tight hamstring and weak erector spinae

4. Weak tensor fasciae latae and tight multifidus

The correct answer is: Tight hamstring and weak erector spinae

People with a posterior pelvic tilt have an exaggerated curve in their lower back, leading to tightness in the hamstrings and weakness in the erector spinae muscles. The other options mention imbalances in different muscle groups that are not directly related to the posture issue described in the question. Options A and B refer to imbalances in the hip flexor and quadriceps muscles, which are not typically affected by a posterior pelvic tilt. Option D mentions the tensor fasciae latae and multifidus muscles, which are located in the hip and spine, respectively, and are not directly involved in maintaining proper pelvic alignment. Therefore, option C is the most appropriate answer.