I am curious to find out if others find that this particular exercise makes their Patella Tendon sore - when I do this exercise it makes my bloody knees and tendon crack, and no matter what I do in terms of decreasing the weight, decreasing the range of motion or adjusting the shin pad/arm it still aggravates that area. There is no right or wrong answer to this, just what you personally find happens Lol I stopped doing them because of this.