Exam 8: Basic Biomechanics

The state of equilibrium demonstrated when an object's COG is unchanged when it is disturbed is

If a PTA wishes to manually resist the knee extensors for an athlete and wishes to make the exercise as difficult as possible for the client,the best placement of her hand would be which of the following?

The reason that a large-handled object is easier to turn is that the mechanical advantage is larger. Multiple Choice Identify the choice that best completes the statement or answers the question.

A muscle that generates most of its force directed back into the joint is producing which type of force?

In order to increase the challenge of a person working on balance,you could do which of the following?

Most concentric exercises done in the body are considered to be which type of lever?

In order to decrease the challenge of a client working on balance,you would do which of the following?

The type of machine that consists of a grooved wheel that turns on an axle with a rope or cable is a(n)

You are working with a client to regain function after shoulder surgery.Now you want to focus on exercises to increase power.You would choose which of the following exercises?

The law of motion best demonstrated when a person in a wheelchair gains speed when she pushes on the rims is the

Two forces acting in equal but opposite directions and resulting in a turning effect is called a