Open kinetic chain exercises (eg. Knee extensions) in the ACL reconstruction patient tend to make all physios and orthopaedic surgeons nervous due to concerns over stretching the surgical graft. However consistent high quality evidence suggests that restricted range of movement knee extensions (as shown in this video) can be added into ACL reconstruction rehab as early as week 4, moving into full range of movement knee extensions by week 12 (van Melick et al, 2016, Perriman et al, 2018, Janssen

Utilizing open chain movement help the body deliver a signal to not only the muscle being focused on but the muscles around it as well. This is why deadlifts and squats are amazing movements to build muscle and strength. Taking a closed chain movement such as a hamstring curl and allowing the body to make it semi open chain is optimal. Never look over little steps. The steps to greatness are made of several inches not feats. We make sure we’re using our minds and focus deep into the hamstrings a