While researching bone density, Dr. John Jaquish discovered a sevenfold difference between the weakest and strongest ranges in weight lifting. The discovery led to the invention of X3, the ultimate muscle-building system. Dr. Jaquish’s latest invention, X3 Force, adds real-time force tracking an...
Jaquish Biomedical Products Variable Resistance Training X3 Program X3 Program Support USD Sign in How many sets do I need to do with the X3? What's the required subscription for the X3 Force app? Choose Your X3 If your question is not answered here visit ourhelp deskor ...