What Is a Open Chain

Definition of open chain : an arrangement of atoms represented in a structural formula by a chain whose ends are not joined so as to form a ring.

Which of the following is an example of an open kinetic chain exercise?

In most cases, open kinetic chain exercises are single-joint movements. For example, when performing the leg extension exercise, the only movement occurs at the knee joint. This targets the muscles of the quadriceps. … The lower leg freely moving in space during the exercise makes this an open kinetic-chain exercise.

What is an example of a closed chain activity?

Closed chain exercise occurs when the hand or foot is fixed and cannot move, remaining in constant contact with a surface, usually the ground. Some examples include lunges, squats, pushups, and pull-ups. The opposite of these movements are called open chain exercises, such as leg extensions and bench press.