Principles for building exercise programs

Section 2 introduces the core principles behind effective exercise prescription and explains how these ideas guide clinical decision-making. A central concept is mechanotransduction, the process by which mechanical loading creates cellular responses that lead to tissue adaptation. This is illustrated through examples such as bone density changes, stress fractures, Achilles tendinopathy, post-surgical rehabilitation, and possible effects of whole-body vibration. The section also emphasizes starting with the patient’s end goals rather than the clinician’s preferences. Learners are introduced to tools such as the Patient-Specific Functional Scale and to practical considerations including time, available resources, adherence, and how much recovery is necessary for a person’s real-life needs. A biopsychosocial approach is highlighted, including the START framework for assessing risk and risk tolerance in return-to-sport decisions. Another major focus is behavior change. The section explains motivational interviewing, the transtheoretical model, and therapeutic alliance as key strategies for improving readiness, adherence, and self-efficacy. Overall, learners can expect a foundation for designing exercise programs that are evidence-informed, goal-oriented, and built collaboratively with patients.