Final answer:
Martha Rogers is the theorist who introduced the concept of "unitary man" within her practice framework for nursing, which emphasizes a holistic approach to patient care.
Step-by-step explanation:
The theorist whose practice framework includes the concept of "unitary man" evolving along the life process is Martha Rogers. This concept is a central element of Rogers' Science of Unitary Human Beings, which views individuals as whole and complete, participating in continuous interaction with the environment. Rather than assessing patients as a collection of parts or symptoms, Rogers' framework considers them in their entirety, emphasizing a holistic approach to nursing care.