Muscle for the Masses

by Griswell Training

In-Person Or On-the-go

I am right there with you every step of the way with tailored instruction to exceed your goals

Designed to Build Muscle

My training takes you above weight loss and focuses on building real muscle mass

Tailored for All Bodies

Any body, Any Time. Whether you are experienced or a new to working out, I will guide you in the right direction

Let's Get Serious

MEET YOUR TRAINER

With years of experience training clients of all ages and ability levels, Jennifer Griswell is passionate about helping people build strength and confidence through the power of muscle. As the founder of Muscles for the Masses, Jennifer’s philosophy centers around serious, effective strength training designed to deliver real, sustainable results. Whether you’re brand new to lifting or ready to take your training to the next level, Jennifer’s supportive and no-nonsense approach will help you unlock your potential and feel strong for life.

Muscle-focused training

Our Services

We offer multiple ways to kickstart your fitness journey or push your current fitness to new heights. In-person training sessions can be booked 1-on-1 or in pairs for partnered training sessions. We also extend our programming to follow you anywhere you go with the Griswell Training App. Our app includes exercises as well as additional tools to connect with a our fitness community as well as with your trainer.

It’s time to let an expert supercharge your training so that you can build muscle for the health, physique, and wellness that you deserve.

full body workouts that leave you energized

go beyond your limits

“Working with Jenn is amazing! She does a wonderful job of teaching different exercises and why they are important. She makes working out really comfortable and achievable and she works with you at your speed. She is so nice and fun to work with!"

“I’ve been working with Jenn weekly for almost two years and I love it! I’ve seen a HUGE difference in my strength. She tracks progress weekly and makes every workout unique and challenging. I will be with Griswell Training for the long haul!"

"What started out as a 6 week training with Jenn has turned into nearly a year of weekly sessions. My partner and I can’t recommend her enough. Every single session has been so much fun and we have seen so much progress in our training. Jenn is so kind and encouraging which is my favorite part about working with her since I’ve always been very intimated in a workout environment. We truly adore her and feel so lucky to get to train with her!!"