A 4-week beginner Tabata plan

You do not start with all-out. You earn it. This plan takes four weeks to build from friendly 30/30 intervals to one honest Tabata block, three short sessions a week.

Ground rules

• Three sessions a week, a rest day between them.
• Warm up 5-10 minutes every time: easy cardio plus a few squats, lunges and arm swings.
• Pick simple movements you can do fast with clean form: air squats, mountain climbers, burpees, high knees, bike or rower sprints.
• Effort scale: "hard" means you could keep going another round or two; "all-out" means you could not.

Week 1: 30/30 x 8, hard

Thirty seconds of work, thirty of rest, eight rounds; eight minutes total. The goal is even pacing: round 8 should look like round 1. If it does not, go easier early.

Week 2: 30/20 x 8, hard

Same work, less rest. The ten missing seconds change more than you expect. Keep the movement quality; sloppy fast reps count as sloppy, not fast.

Week 3: 20/10 x 8, hard but not maximal

The Tabata clock, at maybe 85-90% effort. You are learning the rhythm: how fast 20 seconds goes when you push, and how little 10 seconds of rest really is. Two blocks with 3 minutes between them if you feel good.

Week 4: 20/10 x 8, all-out

One block, everything you have, every round. If you finish thinking "I could do another block", you paced it; that is fine, note it and go harder next time. If you finish on the floor, congratulations: that was Tabata.

After week 4

Keep 1-2 genuine Tabata blocks a week and fill the rest with easier intervals or steady cardio. Progress by movement (burpees hurt more than squats), not by stacking more all-out blocks; intensity is the stimulus, volume is the tax.