Built in Twin Falls.
Built to last.
Ground Zero Strength was founded in 2021 with a simple idea: Twin Falls deserved a real strength gym. One built around the barbell, run by a coach who actually knows his craft, designed for people who want to train seriously for the long haul.
Five years in, that idea hasn't changed. The Pacific Northwest's only Starting Strength affiliate gym.
Who you'll work with.
Sam Krapf
Sam is a Starting Strength Coach and the owner of Ground Zero Strength. A former collegiate baseball coach and athlete, he went full-time into strength coaching in 2021 and opened GZS to bring serious barbell coaching to Twin Falls.
He holds a Bachelor's in Biology and a Master's in Sports Performance. He coaches lifters from complete beginners to competitive powerlifters, specializing in scaling the barbell lifts for any age, ability, or limitation.
Outside the gym he competes in jiu-jitsu, hunts elk and mule deer in the Idaho backcountry, and trains through his own Scheuermann's kyphosis — which informs his approach to every client with structural limitations.
Nicole Sharp
Nicole is a licensed physical therapist and strength coach specializing in the Treat & Train model — combining PT assessment and treatment with barbell-based strength programming for clients with limitations, injuries, and movement issues.
Her approach is built for the people the standard model ignores: those who've been told not to lift, who've been working around problems for years, or who need someone who understands both rehab and the barbell.
learn about treat & train
Systematic. Progressive. Honest.
GZS is built on the Starting Strength method — the most effective and scalable barbell training system developed. But it's not dogma. Sam uses it as a foundation and adapts it to the individual.
The goal is always the same: get you stronger, keep you healthy, and build a training practice you can sustain for decades. Not a 12-week program. Not a transformation challenge. A practice you keep forever.
What that looks like
The Barbell First
Squat, press, deadlift, bench. The foundation never changes.
Progressive Overload
More weight on the bar, week after week. That's the mechanism.
Adapted to You
Every body is different. The method scales — the program is yours.
Long Term
Not a challenge. Not a phase. A practice you carry for life.
Come see what we're building.
Start with a free consultation — no obligation, no pressure.
Get in Touch