Final answer:
Passive therapeutic exercise is primarily suitable for clients who are paralyzed due to a stroke or spinal injury, as it helps maintain muscle integrity and function when voluntary movement is not possible.
Step-by-step explanation:
Passive therapeutic exercise is most suitable for clients who are paralyzed from a stroke or spinal injury. In such cases, physiotherapists play a crucial role in maintaining muscle function and preventing atrophy due to lack of use. Since paralyzed clients cannot initiate muscle movements on their own, physiotherapists use a range of techniques,
including passive exercises, to stimulate the muscles and prevent the loss of structural proteins that can result from disuse. These exercises are crucial for clients who have limited or no voluntary movement and are designed to maintain muscle integrity and reduce functional impairments.