The Science of Exercise Prescription provides a comprehensive, evidence-based approach to designing safe, effective, and individualized fitness programs. Grounded in established research and aligned with American College of Sports Medicine (ACSM) guidelines, this book bridges the gap between exercise science theory and real-world application.Written for students, personal trainers, fitness professionals, and health practitioners, the text explores foundational principles of personal training, aerobic and resistance exercise, flexibility, and fitness assessment. Detailed chapters examine exercise programming for diverse activities, older adults, and special populations, with practical guidance on screening, goal setting, and program design.