Bill DeSimone is the author of Congruent Exercise: How to Make Weight Training Easier on Your Joints. He has been a personal trainer since 1983, currently works out of his studio, Optimal Exercise in central New Jersey, and is ACE-certified as a Health Coach and Orthopedic Exercise Specialist.

Recent talks include: Joint-Friendly Fitness, The 21 Convention, Tampa, 2014; Biomechanics for Safer Exercise, HIT Resurgence, Minneapolis, 2014; Basic Biomechanics for Weight Training, various sites, 2012-13; Congruent Exercise: How to Make Weight Training Easier on Your Joints, various sites, 2010.

A recent blue belt in Gracie Combatives, Bill works with other adults on their own blue belt training and the Gracie Women Empowered program.