Question

Which of the following is an example of an open kinetic chain exercise? a. push-up b. front squat c. pull-up d. leg curl

Answer 1

The leg curl is the open kinetic chain exercise among the given options, as it involves the lower leg moving freely in space.

Step-by-step explanation:

The example of an open kinetic chain exercise from the options provided is d. leg curl. In an open kinetic chain exercise, the distal segment of the limb (in this case, the lower leg) moves in space and is not fixed to an object or the ground. This is the scenario described where a person is lying face down on a bench lifting a weight with one lower leg. On the other hand, exercises such as push-ups, front squats, and pull-ups are examples of closed kinetic chain exercises because the hands or feet are in a fixed position and the body moves around them.

Answer 2

The example of an open kinetic chain exercise is (a) the push-up.

An open kinetic chain exercise involves the movement of a body part with the distal end of the limb (like a hand or foot) not fixed to a surface, allowing it to move freely. Among the options provided:

Step 1: Identify the exercises.

a. Push-up: In a push-up, your hands are in contact with the ground, but your feet are not fixed, so it's an open kinetic chain exercise.

b. Front squat: During a front squat, your feet are in contact with the ground, making it a closed kinetic chain exercise.

c. Pull-up: In a pull-up, your hands are fixed on a bar, and your body moves, making it a closed kinetic chain exercise.

d. Leg curl: In a leg curl, your feet are in contact with the machine, making it a closed kinetic chain exercise.

So, the example of an open kinetic chain exercise is (a) the push-up.