ACSM Personal Trainer Certification Practice Exam

Which of the following movements is characterized as moving a limb outward away from the body?

1. Adduction

2. Abduction

3. Extension

4. Flexion

The correct answer is: Abduction

The movement characterized as moving a limb outward away from the body is known as abduction. This action typically involves the movement of limbs, such as the arms or legs, at the shoulder or hip joints, respectively. During abduction, the angle between the limb and the body increases, effectively moving the limb away from the midline. This is a fundamental movement in human anatomy that helps in various activities like raising arms to the side or moving the leg outward during activities such as lateral leg raises. In contrast, adduction refers to moving a limb toward the body, while extension and flexion describe movements associated with straightening and bending at joints respectively. Understanding these terms is essential for comprehending human movement and designing effective training programs.