Train Smarter
Age Stronger

A joint-smart, progressive system to rebuild muscle and move with confidence after 50.

TRY FREE FOR 7 DAYS!

(no credit card required!)

The 5 Step Isometric Method™

A structured, joint-smart roadmap for building and preserving muscle safely.

Activate

Target weaknesses with isolated isometrics that wake up dormant muscles, restore joint positions, and reduce inflammation.

Integrate

Improve flexibility through muscle contraction—not stretching—while reducing compensation, enhancing control, and lowering blood pressure.

Move

Build control and mobility with bodyweight training, functional Pilates-style core work, and joint-focused movement sessions.

Amplify

With added joint control, we can progress to adding load. Train upper, lower, and full body using dumbbells and bands to strengthen muscles.

Optimize

Enhance endurance, resilience, and responsiveness for sustained joint longevity with dynamic resisitance training and stability ball work.

Testimonials

Nothing like it! You will never find another app that you can use for Fitness And rehab rehabilitation for any injury or pain you have. Too many people just want a pill to make them feel better in their body, but you actually need to move properly and functionally. Lauren Eirk is the most forward thinking fitness expert I’ve ever met and trained with. She really cares about what she’s teaching to truly help people. Everything she says, and does is back by research and science and years of experience.

Beth Kurtz

iOS

In my 50s and 60s I kept trying to do the same strength training workouts that I did in my 30s and 40s, only to spend more time nursing injuries and I did working out. I experiment it was several different approaches to Fitness And and doing so discovered Lauren Eirk and FIS. After filing Lawrence program, I am pain-free for the first time in 20 years! My body is much more stable, balanced and mobile.

David Horton

iOS

I was introduced to Lauren and her muscle strengthening approach to fitness in December 2018. I suffered with regular crippling lower back strain for 30 years following an injury age 19. No more!!! Having this wonderful app gives me access to lauren‘s meticulously crafted workouts anytime I want to care for my body was specific, intentional movement. I can step onto a mat feeling BLAH and sore from all the sitting I do in my job and after even just a short workout, I feel SO MUCH BETTER! I take Lauren with me when I travel via the FIS OnDemand app since there’s plenty of props/equipment-free workouts in there. I hope lots of people discover Lauren and her intelligent thoughtful approach to Fitness as we age.

Kate Loyd

iOS

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Meet Your Instructor

Lauren Eirk, MS, MAT-Rx, C-IAYT, E-RYT 500, brings nearly 40 years of expertise in biomechanics and muscle health. As a Muscle Activation Techniques Specialist and educator to health professionals nationwide, she created FIS OnDemand to deliver joint-smart strength training specifically for adults over 50.

Learn More About Lauren