Begin with a dynamic warm-up, including exercises that activate the shoulders, hips, and core. For push presses, use a weight that allows for good form and a full range of motion. If 155/105 lbs is too heavy, reduce the weight to maintain proper technique and safety. In kettlebell swings, focus on using the hips to generate power and maintain a consistent pace. If 75/53 lbs is too heavy, reduce the weight to maintain proper technique and safety. For double-unders, aim for a smooth and consistent rhythm. If double-unders are too challenging, modify with single-unders or jumping jacks to maintain the workout's stimulus. This workout is a high-intensity interval training (HIIT) workout that challenges both strength and cardiovascular endurance. Push yourself to maintain a consistent pace throughout the rounds, and finish with a cooldown involving stretching, particularly focusing on the shoulders, hips, and calves.