Assess the learner's ability to apply evidence-based behavior change techniques (e.g., goal-setting, self-monitoring, motivational interviewing, action planning, graded tasks, and habit formation) and relevant frameworks (COM‑B, Transtheoretical Model, Self‑Determination Theory) to design, justify, implement, and evaluate individualized physical activity plans for sedentary adults. Tasks include analyzing brief case scenarios to identify barriers and safety considerations, setting measurable progressive goals, selecting tailored strategies and monitoring metrics, and proposing relapse-prevention and adjustment approaches.