More than 50% of all runners will sustain a running-related injury each year of which half are knee injuries. While there may be many contributing factors to the development of an injury, it is ultimately the load applied to the lower limbs that is the trigger. No matter how experienced you are, there is no way to antipate the loading level by visual inspection or video analysis. You need to calculate it and this is what we do in the Joint Loading page. The calculations are based on inverse dynamics which yield the net forces and moments acting on a joint. Focus is on the knee and hip joints. To assess if a joint loading variable may be harmful, it is compared with test results from over 600 runners. In addition, a built-in guide helps you to relate the joint loading variables to specific stride parameters. This allows you to make targeted stride corrections to alleviate a specific force or moment from harmful level to normal.