Training for 40 and up
Stay Strong, Powerful &
Athletic After 40
You don't have to stop training hard after 40. You just have to train smarter. Build strength, muscle, and athleticism with barbells, kettlebells, dumbbells, and landmines, without beating up your joints.
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Try every program free for 7 days. Choose annual billing or monthly billing and cancel right from your profile if it’s not for you.
REAL MEMBERS. REAL PROGRESS.
YOUR COACH JAY MARYNIAK
WHY I BUILT A SMARTER WAY TO TRAIN AFTER 40
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Try it free for 7 days - cancel anytime from your profile
TRAIN HARD. TRAIN SMARTER.
The JTM FIT App gives you structured programs, fresh weekly workouts, and guidance on movement, nutrition, and recovery in one place. New Daily Workouts arrive every Sunday, so you can open the app and get to work.
New here? Start with the Functional Movement Mastery Course, then choose the program that fits your goals and equipment.
Meet Jay Maryniak.
20+ years sober. Type 1 diabetic. Personal trainer and coach since 2008.
I started at 145 pounds with no muscle and no idea what I was doing. I tried everything, from Muay Thai and BJJ to CrossFit and endurance events. Many years of hard training beat my body into the ground.
Injuries and burnout forced me to rebuild. That experience shaped The Functional Method: a way to train hard, stay athletic, and keep moving well for years to come.
I’ve sold 10,000+ programs and built a community of 2M+ followers. But what matters most is that this system comes from someone who’s done the work.
Wherever you’re starting from, there’s a way forward.
— Jay
Still have questions? Here are the ones we hear most.
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How is this different from other fitness apps? I've tried so many different ones and didn't see results.
Most apps give you a library of workouts and leave you to figure out the rest. Most workouts are incredibly generic and are probably created by AI. Not at JTM FIT. The app is a complete system — structured programs, a progression path, fresh weekly programming, nutrition, mindset, and mobility — all built around one cohesive method. Jay has a huge passion for programming and spends hours every single week creating the best workouts that deliver the best results.
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I've been training for years. Is this too basic for me?
Definitely not. The method is built for people who already know how to train — but have hit a wall. The programs assume a baseline of experience. If you're expecting total beginner content, this isn't it. And if you're coming back from an injury or a long layoff, the Rebuild program is built specifically for that — restoring movement quality and rebuilding capacity before pushing
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Do I need a gym or can I train at home?
Both. Some programs are built for a gym or a well-equipped home gym with barbells, kettlebells, and dumbbells. Others, like Kettlebell Shred, Dumbbell Shred, and Bodyweight Burn, require nothing more than a kettlebell, a pair of dumbbells, or just floor space. Whatever your setup is, there's a program in the app built for it.
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I'm dealing with an injury. Can I still run the programs?
Obviously, all injuries aren't created equal but all programs inside the app can be modified to meet you where you are currently at. The Rebuild and Full Body programs are two of our best for those that are trying to get back into training and build yourself back up.
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What if I don't have time for long sessions?
Sessions generally run 45–60 minutes. With that being said, Jay has dedicated videos in the start here section explaining in detail how those who are newer to training and or have minimal time can modify the workouts and programs to meet them where they currently are.
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Can I cancel if it's not for me?
Yes, absolutely. Cancel anytime directly from your profile in the app. Tap on your profile then tap on manage subscriptions. Takes 30 seconds.
































