The ACSM Just Changed the Rules on Strength Training — Here’s What It Means for People Over 40 in Tucson
By Ethan & The BLOCK FITNESS® Coaching Team | BLOCK FITNESS® — Oro Valley & Catalina Foothills, Tucson, AZ Published March 2026 | 8 min read Every few years, the science catches up to what great coaches already know. And this time, it’s worth paying attention. The American College of