As of 13 August 2026, AI can only partly create a muscle-building workout plan.

What to actually do

1. Use a tool built for this

   The route this page recommends

2. Do it yourself

   Second choice

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open a chatbot and copy the prompt into a new conversation.
   2. Gather your available equipment, training days, session length, experience, exercises you can perform confidently, and any pain, injuries, medical conditions, pregnancy or medicines that may affect exercise.
   3. Replace each bracketed slot with your information, writing none where a limitation does not apply, and paste the completed prompt.
   4. Ask the chatbot to revise the plan if any exercise needs equipment, time or skill you do not have.
   5. Compare every exercise with the equipment you own and check the sets, repetitions, rest periods and progression rule against what you can perform with controlled technique.
   6. Start with conservative loads and stop the session for chest pain, fainting, severe or unusual breathlessness, sudden weakness, or another worrying symptom; seek urgent help through NHS 111 or 111.nhs.uk where appropriate.
   7. After trying the plan, record exercises, loads, repetitions, pain and recovery, then ask the chatbot to suggest an adjustment using those records rather than inventing missing information.

   Prompt

   Create a muscle-building resistance-training plan using the information below.
   
   My goal: [for example, build muscle generally or focus on specific body parts]
   My training experience: [beginner, returning after a break, or experienced]
   Days available each week: [number]
   Time available per session: [minutes]
   Equipment and location: [gym, home equipment, or no equipment]
   Exercises I can already do confidently: [list]
   Exercises I cannot do or do not want to do: [list]
   Current limitations, pain, injuries, medical conditions, pregnancy, or medicines that may affect exercise: [write none if none, but do not diagnose or interpret this information]
   Age range: [range]
   
   Give me a weekly schedule with a warm-up, exercises in order, sets, repetitions or time, rest periods, and a clear progression rule. Keep the plan realistic for my available days and equipment. Explain how to choose a starting load without testing a maximum, and give substitutions for exercises that need equipment I do not have. Include rules for stopping or changing an exercise when there is pain, dizziness, chest pain, unusual breathlessness or another worrying symptom. Do not diagnose me or claim that this plan is medically suitable. If my limitations or symptoms need individual assessment, say that I should speak to a GP or qualified physiotherapist. Ask concise follow-up questions instead of guessing when important information is missing.

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

3. Hand it to a person

   The distant third

   A person who owns the outcome does this end to end, worth it when the failure is dear.