International Sports Sciences Association (ISSA) Trainer Practice Exam

What type of muscle contraction occurs during the lifting phase of a deadlift?

1. Eccentric contraction

2. Isometric contraction

3. Concentric contraction

4. Static contraction

The correct answer is: Concentric contraction

During the lifting phase of a deadlift, a concentric contraction occurs. In this type of contraction, the muscle fibers shorten as they generate force to lift the weight. The primary muscles involved when executing the lifting phase include the quadriceps, hamstrings, glutes, and back muscles. As the individual lifts the barbell from the ground to the standing position, these muscles actively contract to overcome the resistance of the weight. This understanding is crucial for trainers and athletes alike, as it emphasizes the importance of strength training and the specific role of muscle contractions in developing power and performance. Recognizing the mechanics of concentric contractions aids in designing effective training programs tailored to enhance muscular strength and endurance, particularly for compound lifts such as the deadlift.