Four complete AI workout plan prompts for personal trainers and online coaches: a full training block, a progression plan, an exercise substitution table and a deload week. Includes a review checklist.
An AI workout plan prompt will not replace your programming knowledge. It can remove the slow part: typing out tables, writing substitutions and formatting a block so a client can follow it.
This guide gives you four complete prompts for personal trainers and online coaches. They work in ChatGPT, Claude and Gemini. Each one treats the model as a drafting assistant and keeps the programming decisions with you.
Why Most AI Workout Prompts Fail
"Write a 12-week hypertrophy programme" gives you something that looks like a programme. It usually has problems:
- Volume that does not match the client's experience.
- Exercises that need equipment the client does not have.
- No clear progression rule, or one that is impossible to sustain.
- No link to the client's schedule, recovery or preferences.
The fix is to give the model the same detail you collect at intake, then ask for a specific format and a list of things it must flag.
Prompt 1: Complete 4-Week Training Block
You are an experienced strength coach drafting a training block for an online
client. I am the coach. I will review and change this draft before the client
sees it.
CLIENT PROFILE
- Age and sex: [e.g. 42, female]
- Training age: [e.g. 18 months, mostly machines and dumbbells]
- Main goal: [e.g. build lower body strength and muscle]
- Secondary goal: [e.g. improve general fitness]
- Sessions per week and length: [e.g. 3 x 50 minutes]
- Equipment: [e.g. commercial gym, no barbell confidence yet]
- Current working weights: [e.g. goblet squat 20 kg x 10, RDL 2 x 16 kg x 10]
- Injuries or limitations: [list, or "none reported"]
- Preferences: [e.g. likes supersets, dislikes lunges]
- Recovery factors: [e.g. sleeps 6 hours, stressful job]
TASK
Write a 4-week training block.
STRUCTURE
- Choose a split that suits the sessions per week, and explain why in 2-3
sentences.
- Each session: warm-up (5 minutes max), 4-6 exercises, optional finisher.
FORMAT
For each session, a table: Order | Exercise | Sets | Reps | Load guide
(RIR or RPE) | Rest | Coaching cue.
Then a short "Week-by-week changes" section.
RULES
- Keep hard sets per muscle group per week appropriate for the training age
I gave. State the weekly total for each major muscle group.
- Do not programme around injuries yourself. List any exercise that needs my
review because of a reported injury, and suggest the client checks with a
physiotherapist.
- Use only the equipment listed.
- End with 3 questions I should ask the client before I finalise the plan.
Asking for weekly set totals per muscle group makes the model show its volume. That is the first number you should check.
Prompt 2: Progression Plan for an Existing Programme
Use this when you already have a programme and want clear progression rules the client can follow alone.
You are an experienced strength coach.
PROGRAMME
[Paste the current programme table]
CLIENT CONTEXT
- Training age: [e.g. 3 years]
- Recent performance: [e.g. stalled on bench press for 3 weeks]
- Weeks left in block: [e.g. 6]
TASK
Write progression rules for each exercise for the next 6 weeks.
FORMAT
A table: Exercise | Progression method (double progression, load
progression, rep progression or RIR-based) | Rule in one sentence |
What to do if the client misses the target twice.
Then a plain-English summary of 80-120 words that I can send to the client.
RULES
- Use simple rules that a client can apply without asking me.
- Do not increase load by more than a normal jump for that exercise.
- Flag any exercise where the current data suggests a problem I should
look at, for example pain comments or repeated missed sessions.
The "what if they miss twice" column prevents the most common message you get: "I didn't hit my reps, what now?"
Prompt 3: Exercise Substitution Table
Clients travel, gyms get busy and equipment breaks. A substitution table keeps the programme running.
You are an experienced strength coach.
PROGRAMME
[Paste the programme table]
TASK
For each exercise, give 3 substitutions:
1. Same equipment type, different variation.
2. Dumbbell or cable option.
3. Minimal equipment or bodyweight option for travel.
FORMAT
A table: Original | Sub 1 | Sub 2 | Sub 3 | What to keep the same
(e.g. rep range, target RIR).
RULES
- Each substitution must train the same main muscles and movement pattern.
- Do not include exercises the client cannot do: [list].
- Keep the table short enough to fit on one screen per session.
Prompt 4: Deload Week
You are an experienced strength coach.
CURRENT WEEK
[Paste the final week of the current block]
CONTEXT
- Reason for deload: [e.g. planned end of block / high life stress /
performance dropping]
- Client preference: [e.g. wants to keep training 4 days]
TASK
Write a 1-week deload based on the current week.
FORMAT
Same table format as the original week, then 3 sentences explaining what
changed and why, written for the client.
RULES
- Keep the same exercises unless one is causing discomfort.
- Reduce fatigue by lowering sets, load or effort. State which method you
used and by roughly how much.
- Do not add new exercises during a deload.
Review Checklist Before You Send Any AI Plan
Run through this in two or three minutes:
- Volume. Are the weekly hard sets sensible for this client's training age and recovery?
- Equipment. Does every exercise match what the client has?
- Injuries. Has the model avoided adjusting for injuries itself? Anything it flagged needs your judgement or a physio's input.
- Progression. Can the client apply the rule without asking you?
- Time. Does each session fit the stated time, including rest periods? Add up sets multiplied by rest to check.
- Preferences. Has it kept out exercises the client dislikes?
- Voice. Do the coaching cues sound like you?
If the draft fails more than two checks, give the model feedback in the same chat and ask for a revised version. That is faster than editing by hand.
Where to Keep AI-Drafted Programmes
A programme in a chat window is not a coaching system. It needs to sit in the client's file, next to their logs and check-ins, so you can see whether it is working. Our guide to Google Sheets templates for fitness coaches covers the training plan layout, and client tracking spreadsheets for personal trainers covers how to track progress against it.
Get the Full Plan Creator Pack
The four prompts above are complete and free. The Plan Creator pack in the AI Coaching Toolkit (£49) adds prompts for more goals, training ages, split types and review steps, plus meal plan prompts. All three Toolkit packs are £79 together.
If you want the spreadsheet side done for you, GSheetsPro is a £199 one-off Google Sheets coaching system with training templates, client files, check-ins and progress tracking.
FAQ
What is a good AI workout plan prompt?
A good prompt includes the client's training age, goal, schedule, equipment, current working weights, injuries and preferences. It asks for a specific table format and tells the model what to flag rather than decide. Prompt 1 above is a complete example.
Can AI write a safe workout programme?
AI can draft a programme, but it cannot assess the client. Safety depends on your review, especially for injuries, beginners and older clients. Refer injury and pain concerns to a physiotherapist or doctor.
Should personal trainers use ChatGPT for programming?
Use it for drafting, formatting, substitutions and client-friendly explanations. Keep exercise selection, volume and progression decisions with you. Always review the output before a client sees it.
Which AI tool is best for workout plans?
ChatGPT, Claude and Gemini can all produce good drafts from a detailed prompt. The quality of your prompt and your review matters more than the tool.
How do I stop AI plans all looking the same?
Give more client detail, paste an example of a programme you wrote, and ask the model to match its structure and cues. Specific inputs produce specific outputs.
