Open Chain VS Closed Chain Exercises One of the biggest differences between calisthenics and traditional weightlifting is that calisthenic exercises are ALWAYS closed chain movements. Where as most traditional weightlifting exercises (bench press, flys, shoulder press) are all open chain exercises. Closed chain exercises mean the limbs are fixed and the body is moving through space. Think pushups: the hands and feet are on the floor and your moving your entire body up and down each rep. Whereas

Terminal Knee Extensions (TKEs) variations Getting the knee actively into terminal knee extension is a key milestone during the first few weeks following ACLR. It's also important to maintain this ability throughout rehab. Isolating the quads via open kinetic chain exercise variations will help, as will exercises like TKEs. Here's 2 options. Personally, I like the 2nd option more (TKE hip lock), as its got great "bang for buck" for being a true unilateral exercise, and getting the glutes to cont