Begin with a dynamic warm-up, including movements such as jumping jacks, high knees, and arm circles. For deadlifts, use a weight that allows for good form throughout the set. If 255/165 lbs is too heavy, reduce the weight to maintain proper technique and safety. In hand release push-ups, focus on a full range of motion, lowering your chest all the way to the ground and releasing your hands before pushing back up. For box jumps, focus on explosiveness and landing softly. If 24/20 in is too high, reduce the height to maintain proper technique and safety. This workout is designed to challenge your strength and cardiovascular endurance. Pace yourself throughout the 15 minutes, aiming to maintain a consistent effort level. Finish with a cooldown involving stretching, particularly focusing on the legs, chest, and triceps.