NETA Personal Trainer Practice Exam

Which of the following describes the movement known as abduction?

1. Decreases the relative joint angle

2. Brings body parts closer together

3. Moves body parts away from the midline

4. Increases the relative joint angle

The correct answer is: Moves body parts away from the midline

Abduction is defined as the movement that occurs when a limb or body part is moved away from the midline of the body. This movement is essential in actions such as lifting the arms or legs sideways away from the center line. The correct choice accurately captures this definition, highlighting how abduction specifically involves the lateral or outward movement of body parts. For instance, when a person raises their arms out to the sides, they are performing an abduction movement. Other options do not align with the definition of abduction. While decreasing the relative joint angle typically describes flexion, bringing body parts closer together refers to adduction, and increasing the relative joint angle usually pertains to extension. Understanding these terms is crucial for recognizing different types of movements and their implications in training and anatomy.