Isometric exercise occurs when force is exerted against an object that does not move.
a. true
b. false

True. This is a type of strength training exercise with which the joint angle and muscle length do not change during the contraction of the muscles. These exercises are done in static positions where muscles work against an immovable object. The amount of pressure applied to the particular weight is the same amount throughout the whole contraction. An example of this is holding in place a bench press where a further push can no longer be applied once the arms are already fully extended.  

It starts with commitment. the health and safety policy is the commitment by the employer to provide and maintain a safe workplace. the commitment of the workforce is also a necessary component.when the workplace parties sit down to develop an ergonomic approach to patient handling, they will develop terms of reference that set forth how the health and safety committee will function in approaching this problem and reach its goal of reduced injuries.in general, a safe patient handling program will involve the following steps: management approval and commitment to develop and implement a patient handling program.perform a needs analysis.create and standardize patient assessment criteria.develop decision trees to standardize actions.determine which controls are needed to implement specific tasks or patient needs.institute a "no-lift" policy, where possible.

The talk test measures ease of speaking during exercise;