Planned work and recovery periods. Intervals can be low-impact, cardio-based, or strength-conditioning based.
Great for fat-loss support and conditioning. Match intensity to readiness and joint tolerance.
Use the method to improve the result, not just to make the workout harder. The client must still move well, recover well, and understand the purpose.
10 rounds: 30 sec fast march/bike/step-up, 30 sec easy recovery.
Month 1: learn the format and keep effort controlled. Month 2: add a set, round, or slightly more load. Month 3: increase intensity only if form, recovery, and confidence are strong.