What advantage do all free weights have in common? They work well for beginning users with poor core strength. They prevent injury by limiting movement to a single plane. They provide a weight-bearing workout. They are safer than weight machines.

They provide a weight-bearing workout.

Explanation:

Free weight are normally used in exercises. It is quite different from weight machines as it can be used to perform any movement. It also helps to work on weaker parts of the body to become stronger through continual focus.

The weight machines are however known to be safer and the free weight provides a weight-bearing workout because it can be moved in different directions and positions.