July 30, 2018
There is an amazing array of research studies supporting the benefits of tai chi and related exercises for a wide range of conditions. Metarobic theory explains how and why from a medical perspective, but there still remains the question of why some studies show conflicting results particularly in the field of cancer.
September 30, 2013
A lever is the simplest of machines, which utilizes a rigid bar to rotate around a fixed pivot point called a fulcrum in order to exert force on an object (load). If the resistance or load exceeds the strength of the bar, the bar will break. Biomechanically speaking, the arm is a bar, and when the fulcrum is at or above the joint, breakage can easily occur.