Using AI for Workout Plans: How Smart Technology Can Transform Your Fitness Routine

Learn how AI can personalize your workout plans, track progress, and adapt in real time to help you train smarter and reach your goals.

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by
Sarah Zimmer, PT, DPT
— Signos
PT, DPT
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Updated by

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Science-based and reviewed

Updated:
Published:
June 20, 2025
June 20, 2025

Table of Contents

Key Takeaways

  • AI platforms can create highly personalized, flexible training plans by using machine learning and data analysis to adapt to your goals, fitness level, and progress.
  • Top AI fitness tools, such as Fitbod, Signos, and Whoop, provide real-time insights using your data, making workouts more efficient and informed than traditional routines.
  • While AI can’t replace human trainers entirely, it enhances fitness with 24/7 accessibility, smart tracking, and cost-effective programming for anyone, anywhere.

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Artificial intelligence (also known as “AI”) has been game-changing in numerous areas of work and life, and it is surely reshaping the fitness world as well. Now, those interested in starting or improving their fitness can turn boring workout plans into highly personalized training programs, all with the help of AI. 

By utilizing massive datasets and real-time feedback, fitness apps and smart watches can tailor exercise plans to individual goals, preferences, and progress. That said, some skeptics question whether AI can truly replace the human element of a personal trainer or fully account for the complexities of motivation, injuries, and stress. 

Whether you’re fully on board or have some doubts, this article explores the “how” in which AI is transforming fitness gains for many individuals. Read about the benefits, the emerging tools and technologies, and the situations in which AI excels and falls short. Regardless of whether you're an athlete, just starting your fitness journey, or are curious about AI in general, this article will help you understand what AI can offer for your personal health and fitness goals.1

What Are AI-Generated Workout Plans?

AI-generated workout plans utilize machine learning and data analysis to create personalized exercise programs tailored to your current fitness level, goals, and past workout performance. Machine learning enables the system to recognize patterns in data and improve or adapt over time, while data analysis helps interpret information such as heart rate responses or fatigue levels

Together, these technologies enable smartwatches and fitness apps to create individualized,  smart workout recommendations.2,3 Some popular technologies that incorporate AI into fitness planning include ChatGPT, Whoop, Apple Fitness+, and Feeletics, as well as home equipment such as Peloton and Tonal. 

5 Benefits of Using AI for Workout Plans

As you start to utilize the AI-powered systems, remember no system is perfect, and it takes time for these applications to learn who you are, what you need, and how your body truly responds to all types of exercise. Here are some of the many benefits of using AI platforms for creating personalized workout plans.1

Personalized Workouts Based on Your Goals

AI platforms utilize information such as your current fitness level and preferences to create customized workouts tailored to specific goals, including weight loss, muscle building, endurance improvement, or training for a race. 

Real-Time Adjustments & Progress Tracking

As you log workouts and collect data via smart devices, AI can make real-time modifications to your program. It is constantly learning from your recovery status, how you’re responding to workouts, and when you’ve skipped sessions. 

Cost-Effective Alternative to Personal Trainers

Since most platforms are free or require lower monthly subscriptions, AI fitness apps can provide the structure and guidance of a personal trainer at a fraction of the cost. For example, the Apple Fitness+ app costs $79.99 per year, whereas most personal trainers charge between $50 and $150 per one-hour session. 

24/7 Accessibility & Convenience

With AI-powered systems, you can access your individualized workouts anytime and from anywhere, making it easier to stay consistent with your routine despite a busy schedule. 

Data-Driven Insights & Performance Analytics

Many of the apps and platforms that utilize AI analyze data, such as heart rate, sleep quality, and workout intensity, to provide detailed feedback and suggestions. These insights can help you understand how your body responds to different types of training (e.g., HIIT, weightlifting, running) to avoid overtraining and injury while trying to improve performance. 

Best AI-Powered Fitness Apps & Tools

Explore some of the top AI fitness apps and tools that help many people plan, track, and optimize their exercise routines. Each one utilizes AI to provide personalized guidance, real-time feedback, and intelligent training recommendations tailored to specific health and fitness goals.

  1. Freeletics: This app focuses on bodyweight exercises and flexibility for home-based workouts or on-the-go training. It creates personalized workout plans and adapts weekly based on your performance and feedback on how the plan is going.  It makes constant adjustments to keep you challenged, and it also includes a nutrition component to support your weight loss or health-related goals.
  2. Fitbod: Fitbod builds strength-training workouts tailored to your goals, experience, and available equipment. It tracks your muscle recovery and performance history to ensure each session balances intensity, body part focus, and rest time. Fitbod is ideal for anyone seeking data-informed strength programs that target muscle growth and strength.
  3. Signos: That’s right! Signos combines AI with real-time glucose data from a continuous glucose monitor (CGM) to offer personalized nutrition and fitness guidance. Using Signos’ app and a CGM helps individuals understand how their body responds to different foods and workouts, enabling smarter decisions for weight loss and overall health.
  4. Whoop: Whoop is a wearable wrist strap that uses heart rate variability (HRV), sleep quality, and stress levels to provide insights on recovery and performance. It helps users optimize their training by showing when to push harder or when to rest.
  5. Oura Ring: The Oura Ring collects extensive data on sleep, energy levels, metabolic health, and activity. Its AI algorithms deliver personalized recovery and wellness suggestions, making it a favorite for those focused on holistic health and long-term fitness improvement. The ring also analyzes data regarding aspects of women’s health, such as menstrual cycles and pregnancy. 
  6. Google’s Fitbit: Fitbit watches track activity, heart rate, sleep, and stress. It's known for its Daily Readiness Score, which indicates how recovered you are for the next workout it recommends (even if it suggests a rest day). Fitbit also offers guided workouts and mindfulness sessions for a well-rounded health and fitness lifestyle.
  7. Apple Fitness+: This app utilizes Apple Watch data to suggest a variety of tailored workouts, including HIIT, strength training, yoga, and more. It tracks progress over time and adjusts its recommendations based on your habits and physiologic responses.
  8. JuggernautAI: JuggernautAI is a strength-training app specifically designed for powerlifting and muscle-building programs. It uses AI to calculate reps, weights, and progression based on ongoing performance metrics. If you’re looking for a more advanced tool that targets higher-level strength training, this app may be the best option for you.

How AI Compares to Traditional Personal Trainers

If you’re curious about how AI fitness programs compare to personal trainers, then check out the chart below. Keep in mind that one is not necessarily better than the other. It’s about finding what works for you, fits in your budget, and keeps you motivated and progressing towards your health and fitness goals.

AI Workout Plans

  • Cost: Low to moderate monthly fees (often $10–$30/month) or free if using a platform like ChatGPT.
  • Personalization & Adjustments: Customization and adjustments are based on goals, progress, and fitness level, using individual data that it collects or you input.
  • Flexibility: Accessible 24/7, adaptable to schedule and location. Able to modify workouts in the moment based on how you are feeling.
  • Motivation & Accountability: Relies on your response to app notifications, tracking, and self-discipline to complete the workouts it provides.
  • Expertise Level: Depends on the quality of the app and the algorithms it uses. It may lack the nuance of higher-level fitness theories and evidence-based practices.
  • Best For: Self-motivated individuals who are comfortable with technology, have a lower budget, and need the flexibility of location and scheduling.

Human Personal Trainers

  • Cost: High cost per session or package (typically $50–$150 per session) or more than $250 per month.
  • Personalization & Adjustments: Offers tailored programs that adjust and modify based on expertise, visual assessments, and direct feedback.
  • Flexibility: Can be limited by trainer availability, session scheduling, and location. Many trainers offer virtual services to improve flexibility and access.
  • Motivation & Accountability: Provides real-time encouragement, personal connection, and regular check-ins for improved accountability.
  • Expertise Level: Draws from years of hands-on experience and education. Most personal trainers are required to complete regular continuing education to maintain their certifications.
  • Best For: People seeking personal connection, detailed instruction, individualized attention, and real-time feedback on performance and form.

Potential Limitations of AI in Fitness

While AI-powered workout plans offer convenience and personalization, they also come with some drawbacks and limitations. One of the biggest concerns is the lack of human feedback on aspects such as form, which can lead to injuries or poor performance. Additionally, AI is not ideal for injury rehabilitation, as it lacks the clinical expertise necessary to tailor safe and effective programs for individuals recovering from specific injuries or chronic pain. 

Without the accountability from a human being, some individuals may struggle to stay consistent, push through plateaus, or understand when more rest is needed. Personal trainers and healthcare professionals can visually assess your movement, modify exercises on the spot, monitor your progress, and offer encouragement along the way. That said, some find combining AI with occasional professional guidance provides a well-rounded fitness experience while avoiding injury and burnout.5

How to Choose the Right AI Workout Plan

Choosing the right AI workout plan depends on your fitness goals, lifestyle, and the level of support you need to stay consistent. Here are a few tips to help you decide whether “to AI or not to AI”:

  1. Define Your Fitness Goals: Whether it's weight loss, muscle gain, increased endurance, or overall health, decide what you want your program to focus on. Some AI platforms are better suited for strength training, while others focus on metabolic health and cardio performance.
  2. Look for Personalization Features: Select a plan that adapts to your input, performance, and feedback. For example, apps like ChatGPT utilize AI to create a base plan, but won't update or progress unless you specifically request it. Smart watches and other apps will automatically record your data and learn from your metrics to evolve with your progress and prevent plateaus.
  3. Check Compatibility with Your Lifestyle: Ensure the app aligns with your schedule, preferred workout location (home, gym, or outdoors), and available equipment. Flexibility in scheduling and exercise options makes it easier to stay consistent long term.
  4. Choose Specific Data Tracking and Insights: If you’re motivated by metrics, select a tool that tracks a wide range of data, including heart rate, sleep, recovery, and activity. A tool that can analyze all these variables will provide a more accurate and tailored workout regimen. 

Final Thoughts on AI-Generated Workout Plans

AI-driven workout plans are transforming the way we approach fitness by offering a highly personalized, flexible, and cost-effective alternative to traditional training methods. Although they cannot provide the real-time feedback and support of a human professional, AI has proven effective in tailoring data-driven exercise programs for many in a variety of non-rehab settings.2 

As the fitness industry continues to embrace new technology, it’s clear that AI will likely play a significant role in the future. Understanding how to use AI tools in combination with clear health and fitness goals will help you train smarter, stay motivated, reduce burnout or boredom, and reach a new level of fitness that you didn’t know was possible.4 

The Bottom Line

To summarize, AI workout plans offer a smart, personalized, and accessible way to organize and create a routine that targets any health and fitness goal. By leveraging data and real-time feedback, these tools help you train more efficiently and stay on track. If you’re ready to change up your routine or even start a new one, try exploring an AI fitness app that aligns with your lifestyle, is easy to use, and gives you the motivation you need to transform your health and fitness today.

Learn More With Signos’ Expert Advice

If you have more questions about improving your health, fitness, and nutrition, seek expert advice from a continuous glucose monitor and the Signos team. A continuous glucose monitor (CGM) can give you the insights to make smarter nutrition and exercise choices. The Signos app offers a personalized program to help you achieve your health goals.

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References

  1. Ilukpitiya, I. M. D. J. R. B., Herath, H. M. R. B., Rajakaruna, R. H. M. S. A., Herath, M. H. S. M., Pulasinghe, K., & Krishara, J. (2024, December). AI-Driven Personalized Fitness Coaching with Body Type-Based Workout and Nutrition Plans and Real-Time Exercise Feedback. In 2024 International Conference on Computer and Applications (ICCA) (pp. 01-06). IEEE.
  2. Nizam, S., Saw, R., Arjun, S., Sujitha, M., & Priyanka, M. G. Ai Fitness Workout Assistant Using NLP Techniques. IJSAT-International Journal on Science and Technology, 16(1).
  3. Daroya, R. C., Mercado, M. A. B., Cruz, D. C. D., Sison, A. A. R. C., Centeno, C. J., & Marcelo, E. D. (2024, December). Adaptation of Fitness Application Through AI Integration: An Android Based Application for Home Workout Fitness Experience. In 2024 International Conference on Innovative Computing, Intelligent Communication and Smart Electrical Systems (ICSES) (pp. 1-6). IEEE.
  4. Mokmin, N. A. M. (2020). The effectiveness of a personalized virtual fitness trainer in teaching physical education by applying the artificial intelligent algorithm. International Journal of Human Movement and Sports Sciences, 8(5), 258-264.
  5. Bays, D. K., Verble, C., & Verble, K. M. P. (2022). A Brief Review of the Efficacy in Artificial Intelligence and Chatbot-Generated Personalized Fitness Regimens. Strength & Conditioning Journal, 10-1519.

About the author

Sarah is a Doctor of Physical Therapy, graduating from the University of Wisconsin Madison in 2017.

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Please note: The Signos team is committed to sharing insightful and actionable health articles that are backed by scientific research, supported by expert reviews, and vetted by experienced health editors. The Signos blog is not intended to diagnose, treat, cure or prevent any disease. If you have or suspect you have a medical problem, promptly contact your professional healthcare provider. Read more about our editorial process and content philosophy here.

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