How to Use a Block Step for a Calf Raise. Part of the series: LS – Muscle Workout Tips. Using a block step for a calf raise allows your heel to travel below your toes, increasing the range of motion and thus, allowing for maximum calf development. Find out how to use a block step for a calf raise with help from the only physician in the country to hold board certification in Obesity Medicine and be certified by the American College of Sports Medicine as a Clinical Exercise Specialist in this free video clip. Read more: http://www.livestrong.com/video/1010153-use-block-step-calf-raise/