After 10+ years as a customer service expert, this successful gym owner explains why everything you know about customer service is WRONG. Here's what's he thinks is right.

From Jon: Each Sunday The PTDC publishes a list of the top articles from around the web in 5 different categories: bodybuilding, general health, fat loss, strength training, and nutrition.

If your client has trouble understanding how to do an exercise correctly, this expert coach points out five surprising areas that may be holding your client back.

Learn how Dr. John Rusin's hybrid model of physical therapy and exercise science has helped his athletes perform their best.

From bear squats to landmine squats, have you tried coaching clients with these five squat variations?

From Jon: Each Sunday The PTDC publishes a list of the top articles from around the web in 5 different categories: bodybuilding, general health, fat loss, strength training, and nutrition.

From Jon: Each Sunday The PTDC publishes a list of the top articles from around the web in 5 different categories: bodybuilding, general health, fat loss, strength training, and nutrition.

From Jon: Each Sunday The PTDC publishes a list of the top articles from around the web in 5 different categories: bodybuilding, general health, fat loss, strength training, and nutrition.

Hate it or love it, you’ll need to sell your personal training, but you'll first need to understand your clients on a more psychological level.

From Jon: Each Sunday The PTDC publishes a list of the top articles from around the web in 5 different categories: bodybuilding, general health, fat loss, strength training, and nutrition.