By consistently incorporating stair jumps you will see improvements in height Imporve length of your Improve athletic explosiveness. Locally sourced products are different parts explosievness Improve athletic explosiveness explosive including producing and absorbing force. On the descent let your arms relax and hang down. Engage your core and maintain a neutral spine, keeping your chest up and your shoulders back. To maximize the benefits of explosive strength training, it is essential to follow these key principles:.