Before starting the workout, warm up with some light cardio and dynamic stretching for the hamstrings, glutes, and lower back. For deadlifts, use a weight that challenges you but allows for good form. Focus on keeping your back straight and engaging your core throughout the movement. During burpees, maintain a steady pace and focus on explosively jumping up from the ground. Modify the movement by stepping back instead of jumping if needed. For box jumps, use a box height that challenges you but allows for good form. Focus on landing softly and using your legs to generate power. During double-unders, focus on timing your jumps and keeping your wrists relaxed. Modify the movement by doing single-unders or jumping jacks if needed. This workout is designed to challenge your strength and endurance. Pace yourself throughout the rounds and focus on maintaining proper form. Finish with a cooldown involving stretching, particularly focusing on the hamstrings, glutes, and lower back.