One version of the 1-leg tube squat.

The Benefits of the Single-leg Tubing Squat is for runners who want to build leg and hip strength that will transfer to running. This exercise may help you overcome knee and hip pain as well whether you’re a runner or not. There are three variations on this exercise and all are discussed in the article. This is my second article for Competitor Running. (Those pretty pictures were taken by my wife with her fancy new camera.)