Muscle Contraction Analysis

During the upward phase of a leg extension exercise, what type of contraction is the rectus femoris performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above

While slowly lowering the weight during a leg extension exercise, what type of contraction is the vastus intermedius performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above

During a wall sit, what type of contraction are the rectus femoris and vastus intermedius performing?

• Eccentric contraction

• Concentric contraction

• Isometric contraction

• None of the above

As you straighten your knee to kick a ball, what type of contraction is the rectus femoris performing?

• Eccentric contraction

• Concentric contraction

• Isometric contraction

• None of the above

During the landing phase of a jump, as your knee bends to absorb the impact, what type of contraction is the vastus intermedius performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above

While curling your leg upward during a hamstring curl exercise, what type of contraction is the biceps femoris performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above

As you slowly lower your leg during a hamstring curl exercise, what type of contraction is the semitendinosus performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above

When holding a bridge position at the top, what type of contraction are the semimembranosus and other hamstring muscles performing?

• Isometric contraction

• Concentric contraction

• Eccentric contraction

• None of the above

During the downward phase of a Romanian deadlift, what type of contraction is the biceps femoris performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above

As you return to a standing position during a Romanian deadlift, what type of contraction is the semitendinosus performing?

• Concentric contraction

• Eccentric contraction

• Isometric contraction

• None of the above