Scientists have recently discovered a new muscle in the quadriceps, there are actually five parts versus four?!? I think we should start calling them the quintriceps instead of quadriceps. The new “tensor vastus intermedius” added to the group is highlighted in red in the diagram below. It can contribute to tracking issues with the knee cap when walking or running. This discovery is a good reminder that we do not yet know everything about the human body. There are slight variations in how we are made up, but our physiology can also adapt and change with time. In my massage practice, I recognize that individuals are all unique and treat them according to how they present. It is exciting that we are finding new muscles and we may even have greater strength potential than we realized!