Does 5 rounds: quick cardio blueprint

- Popular routines circulating recommend five rounds of jumping jacks (60s), high knees (45s), burpees (10), and 20s sprints as a compact cardio session. (x.com) - The same thread pairs Zone 2 walks (45–60 minutes at 125–145 bpm) with 2–3 weekly all‑out runs for balanced endurance and fat loss. (x.com) - Fitness posters emphasize frequency and simple progression rather than complex programming for consistent results. (x.com)