Back in the mid-1950s, Dr. Arthur Steindler introduced the concept of open kinetic chain (OKC) and closed kinetic chain (CKC) movements. In a nutshell, an OKC movement is any movement where the terminal segment (i.e., the distal end of the extremity of interest) is free to move in space, and a CKC movement is any…
A good way to get strong on the Nordic hamstring curl is to use accommodating assistance from a lat pulldown machine but done in a special manner. Here’s how it works. Kneel on the seat facing away from the machine, and secure the back of your ankles against the knee support. Instead of using the…