The is easiest if you have access to a calf raise machine,but can be done with a barbell if one is not available.  Placing theweight on your shoulders (bar or machine pads), stand with your toeson a block, allowing the heels to hang over the edge.  Lower the heelsas far as possible, and allow the calves to stretch for a moment, thenpress the weight up with the calves, coming up on your toes as high aspossible.