参考： How to Not Hurt Knees on an Elliptical Knee Pain on the Elliptical Trainer The Elliptical Hurts My Knees Cycling vs. Elliptical for Damaged Knees Why Does My Knee Hurt On An Elliptical Machine? At the time of the test, I weighed 211 lbs. So, for me, this was 66% and 88% of body weight. The machine’s resistance is a function of your body weight. If you weigh 150 lbs and exercise at the same setting and speed as I did, the load going into your leg will be a percentage of your body weight (probably close to 66% and 88%).