American College of Sports Medicine

The American College of Sports Medicine (ACSM) is not an author but a prominent international professional organization founded in 1954 in Indianapolis, Indiana, dedicated to advancing sports medicine, exercise science, and health promotion. It serves over 45,000 members across 90+ countries and publishes scientific journals, establishes evidence-based guidelines, and offers certification programs for fitness and exercise professionals.

Indianapolis, United States Wikipedia Website
Sports Medicine Exercise Science Health Promotion