How do I actually follow this HIIT workout once the AI writes it?

Paste the AI's reply into sweatcue. It structures the session into timed blocks with auto-starting rest timers and calls every set, rest and rep out loud, so you train hands-free instead of scrolling a chat window.

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HIIT · Endurance

Off-bike 30/30 leg-power intervals

Q: What is the best ChatGPT prompt for a hiit workout like this?

Use the research-backed prompt on this page: "I'm a cyclist in my 40s and want a 20-minute off-bike HIIT session built around 30-second leg-power intervals to complement my riding, no equipment needed. Please give me: (1) a 4-minute warm-up of easy marching, leg swi…" Copy the full version with the button above — it wraps the request so ChatGPT, Claude or Gemini returns a clean, followable HIIT workout you can run hands-free in sweatcue.

Intermediate · 40–54 · ~20 min

Bike-free 30-on/30-off intervals that push leg power without the saddle. Below is a research-backed prompt for ChatGPT, Claude or Gemini — copy it, paste the reply into sweatcue, and run the whole HIIT workout hands-free.

Session at a glance

Duration~20 min

FormatTimed intervals

FocusLeg power

IntensityRPE 8

EquipmentNone — bodyweight

Best forEndurance, intermediate

This is how sweatcue structures the session once you paste it in — timed blocks with auto-starting rest and spoken cues. Figures are read from the prompt itself.

The prompt

Copy the complete prompt (it wraps the request below so the AI returns a clean, runnable session).

I'm a cyclist in my 40s and want a 20-minute off-bike HIIT session built around 30-second leg-power intervals to complement my riding, no equipment needed. Please give me: (1) a 4-minute warm-up of easy marching, leg swings and bodyweight squats to raise my heart rate gradually; (2) a main block of 30 seconds hard / 30 seconds easy, repeated, cycling through these movements: squat jumps, split-squat jumps (alternating legs), fast step-ups or high knees, and skater bounds. On the 30s 'on' I should be at RPE 8-9 out of 10 (hard, breathing heavily); on the 30s 'off' I walk or march to recover. Tell me exactly how many total intervals fit into roughly 14 minutes of work and which movement to do each round. (3) a 2-minute cool-down walk plus calf and quad stretches. Keep instructions concise so I can follow on a phone.

Works with Claude, Gemini, Grok or any AI.

Why it's built this way

Short, hard intervals are a time-efficient way to improve aerobic fitness and leg power, and bodyweight HIIT circuits are a practical no-equipment option. For a trained cyclist this is a useful cross-training stimulus and adds some impact loading you don't get on the bike, but it won't replace structured on-bike work for cycling-specific endurance. Push the hard intervals genuinely hard for the benefit to show up.

Sources: Gibala et al., J Physiol 2006 (low-volume sprint-interval training); Klika & Jordan, ACSM's Health & Fitness J 2013 (HIIT / bodyweight circuits)

Run it hands-free in sweatcue

sweatcue is an AI workout dashboard: paste the AI's reply and it runs the whole session on screen and out loud — auto timers, spoken cues for every set, rest and rep, and your live numbers. The AI writes it; sweatcue runs it.

Download for iPhone →

More hiit & related workouts

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New to prompting an AI for workouts?

Start with the full workout library, learn the method in how to write a workout prompt, or see what an AI workout dashboard does.