Cardio Check! is a simple repeating combo that works like a systems test: can you keep rhythm, alignment, and balance consistent while the reps stack up? The jumps warm the whole body and build cadence, then the lateral-crossing lunge pattern challenges hip stability, glute med strength, and knee tracking. The transitions are deliberately uncomplicated, which means the workout becomes a quality game: same two patterns, cleaner every round.

Keep the jumps springy and quiet, and make the curtsy pattern controlled instead of twisty. Hips stay level, torso stays tall, and the front knee tracks cleanly so the work lands where it should - outer hip, glutes, and thighs supporting the joint rather than grinding it. The “check” you’re looking for is consistency: if round five looks like round one, you’re building real fitness, not just surviving reps.