meet sarah
I never imagined fitness would become my calling.
Like so many women, I spent years putting everyone else first. As a wife and mom of four, life was full of responsibilities, and taking care of myself often landed at the bottom of the list.
Everything changed when I discovered strength training and began working with a structured fitness program.
What started as a way to improve my health became so much more. I found confidence I didn’t know I was missing. I learned that becoming stronger wasn’t about chasing a number on the scale—it was about showing up for myself, doing hard things, and realizing I was capable of more than I ever believed.
That journey inspired me to become a NASM Certified Personal Trainer and, alongside my husband, Zack, co-found Peck Strength, a personal training business serving Mariposa and the surrounding communities.
We started Peck Strength because we believe fitness should be realistic, encouraging, and built for real life. Whether you’re balancing work, raising kids, starting over, or stepping into the gym for the very first time, you deserve personalized fitness coaching that meets you where you are.
My greatest joy is raising our four children alongside Zack. I want them to grow up seeing that taking care of your body isn’t about chasing perfection—it’s about building a healthy, active life that allows you to show up for the people you love. I hope they see that strength is something you build from the inside out.
Helping others discover that same confidence and strength is the greatest privilege of what I do.
meet zack
My journey into fitness didn’t begin in a gym. It began with chronic pain.
As a former ballroom dancer, movement was my life. When pain forced me to step away from a career I loved, I became determined to understand how the body heals and what it truly takes to build lasting strength. That journey led me to study movement, mobility, recovery, nutrition, and evidence-based strength training, not just to feel better, but to reclaim my life.
Today, Peck Strength exists because I believe strength is about so much more than building muscle.
It’s about waking up without pain. Having the energy to keep up with your kids. Feeling confident in your body. Staying active as you age. Living a life where your body supports your goals instead of limiting them.
My wife, Sarah, and our family are my daily reminder of why this work matters. I want to be the kind of husband and father who can hike, play, travel, and make memories for decades to come. That’s the same vision I have for every client who walks through our doors.
Because at the end of the day, strength isn’t the goal.
It’s what allows you to fully experience everything else life has to offer.
What We Specialize In
Personal Training
Strength Training
Fat Loss Coaching
Muscle Building
Functional Fitness
Mobility & Movement
Beginner-Friendly Fitness
Accountability Coaching
Healthy Aging
Family Fitness
We don't just help you get stronger.
We help you build a body that lets you fully experience life.
Why Train with Peck Strength?
Peck Strength provides personal training and strength coaching in Mariposa, California, for adults of all fitness levels. Whether your goal is weight loss, building muscle, improving mobility, reducing pain, or simply becoming healthier for your family, our coaching is designed to help you make steady, sustainable progress. Every program is built around your lifestyle so you can develop strength that lasts well beyond the gym.
Ready to get started?
Whether you're looking for personal training in Mariposa, strength coaching, or a realistic plan to improve your health, we are here to help you build lasting results. We'd love to learn more about your goals. Fill out the form and we'll be in touch soon.