TRAIN
like your life depends on it…
Life doesn't care if you're ready. The fire doesn't wait. The fight doesn't pause. SINEW trains you to be unbreakable when it matters most.
COMPROMISES
You won't find shortcuts here. No 6-week "hacks." No magic pills. Just hard work, smart programming, and results that last.
If you're ready to earn it, let's go.
LIVE FREE OR
DIE TRYING
What does it mean to Live in Sinew?
Sinew is the connective tissue that holds your body together. It's what allows you to move, lift, fight, and endure.
But it's more than anatomy.
To "live in sinew" is to acknowledge the reality of your physical existence—your body is fragile, finite, and constantly under stress. Most people ignore this. They let their bodies decay, their strength fade, their resilience crumble.
We do the opposite.
SINEW is a multi-modal training system that builds strength, conditioning, and resilience. No fluff. No trends. Just proven methods that work.
This is training with purpose. This is living in sinew.
Who is this for?
SINEW isn't for people chasing Instagram abs or quick and painless transformations.
It's for:
✅ Firefighters, LEOs, and first responders who need to be strong and conditioned for the job
✅ Tactical athleteswho train for real-world performance, not the mirror
✅ Weekend warriors who want to stay strong, mobile, and resilient for life
✅ Anyone who's tired of gimmicks and wants a training system that actually works
If you're ready to train with purpose, you're in the right place.
Who Am I?
Luke Andresen
I spent 8 years in the Seabees as a Command Fitness Leader, where I learned that your body is the foundation of everything. If it fails, everything else crumbles.
After the military, I studied under the best: Pavel Tsatsouline (RKC, StrongFirst), Ben Patrick (ATG), Charles Poliquin, Ido Portal, Dan John, and many more.
I've trained firefighters, tactical operators, student athletes, and everyday people who want to be stronger, more capable, and harder to break.
My approach: Take what works. Discard what doesn't. Build a system that fits you.
This is SINEW. Philosophy made physical.
U.S. Navy Petty Officer
"Luke helped me earn my StrongFirst kettlebell certification—something I never thought I'd achieve. His knowledge of fundamentals and programming pushed me past my limits. I'm stronger, faster, and more capable than I've ever been."
— Alex F.
Teacher & Badass!
"I'm in my 60s, but I feel stronger and more capable than I did in my 40s. Luke's focus on technique and mastering movements—not chasing trends—has been a game-changer. The kettlebells have transformed my body and my mindset. I love my little gym family, and I love how I feel."
— Tammi P.
State No.1 Ranked Wrestler
"My wrestling technique was solid, but I kept getting overpowered. I needed strength. After a summer with Luke, I got picked up by a national team in Arizona. But the biggest change wasn't just physical—it was mental. In one match, the breathing techniques Luke taught me (tactics used in combat) kept me calm under pressure and helped me secure the win. Luke didn't just make me stronger. He taught me how to make my mind unbreakable when it matters most."
— Landon T.