Plan your exercise with AI, safely
Get a realistic plan built around your week, your kit and your goal, then adapt it when life gets in the way. Plus the safety checks AI can’t do for you.
Video transcript
A plan that fits your week, your kit and your goal, and changes when life gets in the way. Here’s how to use AI to get moving, safely.
First, a target. The NHS recommends that adults get at least a hundred and fifty minutes of moderate activity a week, such as brisk walking, plus strength exercises on two days.
Then give AI the details a trainer would ask for: your goal, how active you are now, the time you really have and your equipment. Ask it to build up gradually.
When life gets in the way, don’t abandon the plan. Ask for a fifteen-minute version, a home workout instead, or a gentle restart after a missed week.
Keep a simple log of what you did and how hard it felt. Every few weeks, paste it in and ask what’s improving and what to change.
But AI can’t see how you move, and it can be wrong. See a GP before you start if you have a health condition, are pregnant, or are coming back after illness or injury.
Stop straight away if you feel pain, dizziness or chest pain. If chest pain doesn’t go away when you stop, call nine nine nine.
Fitness apps and wearables can collect personal data, such as your heart rate, sleep and where you run. Check what they share, and switch off what you don’t need.
Copy the planning prompt from the full guide below, and put your first session in the diary today.
In 30 seconds
- Give AI your time, equipment, fitness and goal, and ask for a plan that builds gradually.
- NHS guidance for adults: at least 150 minutes of moderate activity a week, plus regular strength work.
- Check with a GP first if you have a health condition. Stop if you feel pain or dizziness.
Plenty of exercise plans fail because they were written for someone else: someone with more time, more kit or more energy. An Jargon busterAI assistant: A chat app such as ChatGPT, Claude or Gemini that answers questions and does tasks you describe in plain language. can build a plan around your real week, then rework it when a deadline, a cold or a rainy fortnight gets in the way, which is often when plans quietly stop.
For adults aged 19 to 64, the NHS recommends at least 150 minutes of moderate activity a week, such as brisk walking or cycling, or 75 minutes of vigorous activity, such as running. Add strength exercises on at least two days. If that sounds a lot, start smaller and build up: the UK’s Chief Medical Officers stress that any activity is better than none.
A balanced week
- Get your heart goingModerate activity raises your heart rate and makes you breathe faster and feel warmer.
- Build strengthWork your legs, hips, back, stomach, chest, shoulders and arms, with weights, bands or your own body weight.
- Spread it outBe active on most days, rather than saving it all for one long session at the weekend.
Build a plan around your real week
Give it what a personal trainer would ask for: your goal, how active you are now, the time you really have, your equipment, and what you enjoy or can’t stand. Be honest about your week. A plan you can keep beats a perfect one you can’t.
Build me a [6]-week exercise plan. Goal: [jog 5km without stopping]. Where I am now: [I walk 20 minutes most days but haven’t run in years]. Time: [three 30-minute slots on weekdays, and an hour at weekends]. Equipment: [trainers, a mat and two 5kg dumbbells]. I enjoy [being outdoors] and dislike [gyms]. Include two short strength sessions a week. Build up gradually, with rest days after harder sessions, and tell me how hard each session should feel.
A good plan gradually adds a little more time, distance or weight, which trainers call Jargon busterProgressive overload: Making exercise gradually harder over time, for example adding a little distance, weight or repetitions, so your body keeps adapting., and builds in rest. It should also say how hard each session should feel. A simple check is the talk test: at a moderate effort you can still talk, but not sing, and at a vigorous effort you can’t say more than a few words without pausing for breath.
Want to start running? The free NHS Couch to 5K app takes beginners from walking to running 5km over nine weeks, with three runs a week. AI can help you fit it around the rest of your week.
When life gets in the way
A missed week isn’t a failed plan. Tell the AI what happened and ask it to adjust. This is where it beats a printed plan: it can rework the next fortnight in seconds.
| Life happens | Ask for |
|---|---|
| Only 15 minutes today | “Give me a 15-minute version of today’s session.” |
| Raining, and no gym | “Swap it for a home workout using a chair and a mat.” |
| A busy week, no sessions | “Restart me a step back from where I was.” |
| A knee that aches after runs | Rest it, and see a GP or physiotherapist. Don’t ask AI to diagnose it. |
Track your progress
Keep a simple log: the date, what you did, for how long, and how hard it felt from 1 to 10. Every few weeks, paste it in and ask what’s improving. A Jargon busterWearable: A device you wear, such as a smartwatch or fitness band, that tracks things like your steps, heart rate and sleep., such as a smartwatch, can add steps, heart rate and sleep, but you don’t need one to make progress.
Here’s my exercise log for the last [four] weeks: [paste the date, what I did, how long, and how hard it felt from 1 to 10]. What’s improving? Where am I pushing too hard, or not hard enough? Suggest changes for the next [two] weeks, and ask me questions before you assume anything.
Stay safe
AI isn’t a doctor or a physiotherapist. It can’t see how you move, and it can be confidently wrong, a Jargon busterHallucination: When AI states something false as if it were true, because it predicts plausible words rather than checking facts.. Don’t use it to diagnose an injury, and be wary of any plan that pairs exercise with an extreme diet, such as eating very little or cutting out whole food groups. For more, read using AI for health questions.
Think about your data, too. Fitness apps and wearables can collect your heart rate, sleep, weight and where you run. Check what each one shares and with whom, switch off what you don’t need, such as public activity maps, and think twice before pasting health details into a chatbot.
Check yourself
3 quick questions nothing is savedSpotted a mistake? Tell us and an editor will check it.
