Fitness
The future of fitness: How AI coaches are changing the way we exercise
Fitness and health apps have been promising “smart coaches” and “personalised training plans” for years. But, to date, most programmes have been like online shopping recommendations, with exercises broadly matching your demographic profile and performance level.
However, the rapid advances in real-time image recognition, generative AI and natural language processing are bringing an AI coach worthy of the name within our grasp. And not just for high-tech gyms like Lumin, but also for people working out at home or in the park. Peloton, for example, films how you exercise and provides feedback in real time. Google has also announced AI-powered personalised fitness and health advice for its Fitbit range.
HYROX pro athlete Jake Dearden putting in the work on an indoor bike
© Baptiste Fauchille/Red Bull Content Pool
Market analysts think the AI fitness market could be worth close to $35b USD by 2030. But how close are we to that future? Which company is training up the supertrainer? And how will that change the way we exercise, sweat and track our progress? And what do we need to know about this new world?
Harnessing AI’s potential to make personalised training available to all
Most fitness apps give generic exercise suggestions
© Patrik Lundin/Red Bull Content Pool
Confidence Udegbue has the perfect CV for designing an AI coach. The Vice President of Product at fitness app Freeletics studied electrical and computer engineering and teaches fitness classes in his free time. His broad shoulders, muscular biceps and infectious spirit are a dead giveaway: this guy knows what he’s talking about.
“In the gym, I can see immediately when someone I’m teaching is making a mistake,” says Udegbue. “But that expertise is hard to scale.” Freeletics is trying to solve that problem with AI. The app has been using a predictive algorithm since 2019 to suggest workouts based on demographic data and self-assessed fitness levels. This means that a 39-year-old man who has been training for two years and is at level 63 in the app won’t receive the same instructions as a 25-year-old beginner.
Freeletics uses AI-based motion analysis powered by models like those from Google’s MediaPipe framework, which includes BlazePose – the successor to the earlier PoseNet model. The models provide a skeletal muscle database that can replicate all types of exercises, for which Freeletics sports scientists then define the movements. That way, the system can assess whether that squat you just did went low enough.
Can an AI coach give useful real-time workout feedback?
World-class sabre fencer Olga Kharlan checks her phone
© Yurii Strokan/Red Bull Content Pool
In 2024, Freeletics introduced the Coach+ feature – an AI-powered chatbot with Freeletics expertise and access to anonymised data from over 59m user journeys. Users can ask the virtual coach questions like, “How can I build muscle mass?” or “I feel weak – how can I motivate myself?”
Freeletics is currently testing a version that will allow the app to see you work out. As of April, users have been able to record themselves exercising on their smartphones. “AI counts the reps and gives direct feedback,” Udegbue says. That is particularly helpful because even experienced athletes do not always perform pistol squats or burpees correctly.
Democratising the personal coach experience
Max Verstappen warming up before a F1 race
© Getty Images / Red Bull Content Pool
A personal coach was long the preserve of Hollywood actors, top models and CEOs – a highly competent service provider, always available whenever a slot opened up in their client’s busy schedule. They know their clients’ allergies, preferences and weak spots. They always know how to set the pace. Sometimes they’re pushy, sometimes they go easy. They are a mix of therapist, personal assistant and best friend – open 24/7, all major credit cards accepted.
In the soccer world, the manager is often called “boss” – a figure of respect who takes care of the players both on and off the field. A good coach can tell when something is off in a movement – when the person’s mind is elsewhere, or they’re lacking energy. Anyone who has had that person in their life knows that a good coach is worth their weight in gold, which is why there are coaches for everything – careers, relationships, nutrition – and why the idea of a personalised fitness coach is so appealing.
AI has no body or talent. It doesn’t know what it feels like for sweat to run down the skin or for muscles to cramp or for adrenaline to rush through the veins. But it does recognise patterns and make predictions that we humans can use increasingly often and, in the best-case scenario, find out more about ourselves in the process.
How AI will allow us to ‘chat with our body’
High-jump star Mutaz Barshim lifting heavy
© Diaa Amer/Red Bull Content Pool
Mirrors show you how you see yourself. But the Magic AI Mirror promises that you will like what you see if you follow the exercises and tips on the reflective screen. Behind the glass surface is an AI coach who steers your workouts in real time.
Growl goes even deeper into movement detection. The start-up has developed an exercise boxing bag that captures every movement with 3D cameras and Lidar (light detection and ranging) technology. AI corrects your posture or encourages you when your energy decreases.
Whoop’s fitness trackers combine biometric data with generative AI. If you’re wondering when you got your best sleep, you’ll get a precise answer: “On July 14, because the allergy season was over and you didn’t drink alcohol.” You can chat with your body.
Freeletics is also banking on predictive AI. “Soon the system will recognise that user X has had an increased resting heart rate for days, so I won’t suggest high-intensity exercises,” says Udegbue.
The vision all companies are working on is a multimodal coach: AI that unlocks information – biometrics, genetics, video, training history – and conveys it intuitively to the user. But a perfect coach is more than just an algorithm. Researchers are working on reinforcement learning systems that set individual step goals that are challenging but achievable, and adapt whenever progress has been made.
The power of human and AI combined
Training is possible anywhere
© Marcelo Maragni/Red Bull Content Pool
“We will not be able to deliver on the promise of absolute personalisation for the mass market,” Eskofier says. But before you lose hope, you should know what he means by personalisation.
His laboratory supports, among other people, Sebastian Steudtner, the big wave surfer and world record holder. To do this, they measured his body in an MRI scanner, carried out psychological assessments, calculated strength curves and even fitted his surfboard and wetsuit with sensors.
Eskofier’s team created Steudtner’s digital twin. By the time the project concluded in May 2025, their AI system could already discuss with a real coach what angle Steudtner should surf a 100-foot wave at, and whether he’d be strong enough to do it.
The one thing AI will never change in fitness training
No equipment, no excuses – embrace the simplicity of pure movement
© Romina Amato/Red Bull Content Pool
“We can’t offer that service to millions of people,” Eskofier says. “But these systems can still create real added value.” He believes AI coaches are a good base: “AI can take over data processing and routine personalisation, while real coaches can focus on mentoring.”
AI coaches are getting smarter all the time, too, which is why it’s important to know what they can and can’t do. Limited data sets can lead to bias if too few women or people of below-average height are represented in the data.
“No matter how good the technology gets, one thing will never change,” says Udegbue. “A coach can only make you better if you want to be better yourself, too.” It’s all in your hands.
Fitness
Fitness Class Volume Tied to Exercise Intensity Perception
About The Study: In this comparative effectiveness study, reducing music volume in group fitness classes did not lead to meaningful reductions in perceived exertion and may reduce the risk of noise-induced hearing loss. These findings support implementing safer sound practices in fitness environments and underscore the need for increased awareness and education on hearing protection.
Fitness
Reward yourself by exercising regularly at One to One Fitness | CWRU Newsroom | Case Western Reserve University
Now is the time to recommit to your health in time to feel your best for all your summer activities! One to One Fitness Center offers several ways to save in March.
Members of the Case Western Reserve University community can take advantage of sign-up specials designed to reward themselves for creating healthy habits.
Individuals can get 50% off the initiation fee (regularly $50 plus tax) and earn back what they do pay by exercising eight or more days in both April and May. Learn more online about this deal on initiation fees.
Students also can get additional savings:
- Graduate students who are enrolled for the spring semester receive summer membership free.
- With Spartan Shape Up memberships, affiliate students pay just $40 per month for membership from now through May, and no initiation fee or security deposit is required.
- Students also can pay $44 plus tax per month with a month-to-month, ongoing plan. No initiation fee or security deposit required.
One to One Fitness Center, owned and operated by CWRU, is known for offering personal, professional, friendly and clean services. Memberships include full access to the 28,000-square-foot fitness center, group exercise classes, validated parking in Lot 53, towel and locker service, and member discounts on programs and services.
Members also can add their spouse or partner to their account for $30 plus tax per month. The center also offers personal training, Pilates Reformer, massage therapy and sound bath therapy, swim lessons, and more.
Visit the One to One Fitness Center website, email onetoone@case.edu or call 216.368.1121 for more information.
Fitness
A 3-Step Plan to Give Your Diet, Fitness Routine and Mindset a Reset for Spring
To help you do this, we’ve tapped our Start TODAY experts for simple tips to lighten up meals, move in ways that boost metabolism and and refocus our mindset to get motivated to keep working toward your goals. Apply their strategies and finish the month feeling lighter, more energized and motivated to move forward. Here’s the plan to make it happen:
>>Download the 31-day calendar here
31-Day HIIT & Walking Challenge
This month’s workout plan is focused on short workouts that pack a punch. “HIIT workouts give you a bigger bang for your workout buck! They provide a more efficient workout because you’re alternating the pace and intensity rather than sticking to a steady, moderate pace,” says Mansour. “Changing things up with HIIT prevents boredom and keeps your muscles guessing. This is how we can get the body to change — whether that change is speeding up your metabolism, burning more calories, building muscle, losing weight, or just improving overall health — keeping your body guessing is the magic ticket to seeing results!”
Active recovery days include stretching to improve flexibility and walking for a cardiovascular workout that aids muscle recovery. When weather permits, Mansour encourages people to get outside on walking days. “Walking outdoors isn’t just a workout, it’s a chance to breathe in fresh air and get out of the house to change your environment,” she says. “Each time you go outside on a walk, even if you go on the same path, you’ll see or feel something different. Maybe it’s a change in weather, plants or flowers, people or things. Prioritizing taking your walk outside can hugely benefit your mental health. Getting out of your regular environment and into nature can be a form of meditation, too.”
Get the full 31-day workout plan with unique workouts sent to you daily — plus, walking podcasts, healthy spring recipes and mindfulness tools — in the Start TODAY app!
3 Simple Spring Diet Tips
In addition to mixing up your workout routine, use spring as an opportunity to start lightening up your meals by packing them with seasonal ingredients. Start TODAY dietitian Natalie Rizzo shares her top tips:
- Incorporate more seasonal foods. After a long winter of eating the same foods, your palate is ready for a change! Aim to add at least one spring fruit or vegetable to your meals each day, like asparagus, peas, spinach, radishes, citrus or strawberries. This Spring Asparagus Pasta is a simple weeknight dinner that feels both light and comforting. Seasonal produce is fresher, more flavorful, and an easy way to naturally boost vitamins and fiber. Plus, seasonal produce is more affordable than other items in the produce section.
- Use fresh herbs to brighten up your dishes. Fresh herbs like basil, cilantro, parsley, mint, or dill can instantly upgrade simple meals without extra salt or heavy sauces. Sprinkle them on salads, roasted veggies, eggs, soups, or grain bowls for a burst of spring flavor. Cilantro is the perfect finish to this Mexican Stuffed Sweet Potato, while herbs are blended into cottage cheese in this Herby Cottage Cheese Toast with Tomato recipe for a pop of fresh flavor.
- Shift from heavy comfort meals to balanced plates. As the weather warms up, it’s time to move away from heavy comfort foods and embrace lightened up spring dishes. Build plates with a mix of lean protein, whole grains or starchy veggies, and plenty of colorful produce. Think roasted veggie grain bowls, hearty salads like this BBQ Chicken Quinoa Salad, or simple stir-fries instead of creamy casseroles or heavy stews.
Spring Clean Your Mindset with This Mental Health Exercise
Yes, we are working to propel ourselves forward toward our health goals, but an important part of that process is slowing down and reflecting.
Getting permission not to rush in a world that feels like it’s moving faster than we can keep up is a reminder that most of us need.
Yasmine Cheyenne, start TODAY mindfulness expert
“Getting permission not to rush in a world that feels like it’s moving faster than we can keep up is a reminder that most of us need, but how often would we admit that?” says Cheyenne. “ When the to-do list feels long, and we’re trying to get everything done, we often say the opposite, disregarding how we feel, and push ourselves. Yes, we all have deadlines and things that need to be done. But we also need the reminder to take care while handling our responsibilities.”
This can be easier said than done. So Cheyenne offers up a simple exercise to help: Write down the words you need to hear each day to make yourself a priority and work toward your goals. Put them somewhere you see often, like your fridge or bathroom mirror, and recite them out loud daily.
“This is a perfect example of a reminder that seems small, but can come at the perfect time and help us care for ourselves,” she explains. “One of my favorite examples is: Take it slow and don’t rush, your nervous system deserves peace.”
“When you tell yourself the thing you’ve been needing to hear, it allows you to admit the quiet rumbling within you and take the steps you need. It might be admitting ‘I’m tired and will give myself an early night this week.’ Or you’re saying ‘I’m so proud of the way I’ve committed to moving my body everyday.’ Whether you’re cheering yourself on or reminding yourself of what you need, we don’t always slow down enough to hear what we need from ourselves, and this practice is a great way to start.”
Talking out loud to yourself may feel strange at first, but Cheyenne says over time it will help shift your mindset and translate those words into action. “When we hear ourselves recite these words, it’s like we’re planting positive seeds within us. The more we say what we need, the more we remember it, and we’re more likely to follow through and care for ourselves,” she says. “Our actions really start with the words we say to ourselves. Reading them out loud helps us rewire the way we talk to ourselves and that inner shift is exactly what opens the door to transformation.”
Join our live “Spring Reset Workshop” on March 22 to get one-on-one coaching from Yasmine Cheyenne and connect with other Start TODAY members. Sign up here!
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