Final answer:
The correct action that indicates a client understands the proper isometric exercise technique is forced resistance against stable objects, without limb movement, which demonstrates isometric muscle contraction.
Step-by-step explanation:
A client is undergoing rehabilitation following a fracture and performs isometric exercises as part of his regimen. The question asks which action provides the best evidence that the client understands the proper technique for isometric exercises.
An isometric contraction occurs when the muscle produces tension without changing the angle of a skeletal joint, generally by exerting force against an immovable object, thereby not moving the joint. It involves muscle tension increase but does not result in movement of the limb. Therefore, the correct action that indicates the client understands the proper isometric exercise technique is:
- Forced resistance against stable objects (Option c).
This action shows that the client is exerting force without movement, which is the definition of an isometric exercise. Other options, such as exercising bilateral extremities, monitoring heart rate, or swinging limbs, do not specifically relate to the unique characteristics of isometric exercises.