Diligent Fitnessdiligent fitness
Classes Schedule Pricing About Reviews FAQ Workshops Contact Book a Class →
Constant · Persistent · Commitment

Get strong with a community of women who show up.

Diligent Fitness is small-group strength training for busy women — in our Detroit studio and live online. Real coaching, real form, real results, with a community that has your back every step of the way.

Book a Class → Explore Classes
Small-group coaching All fitness levels Studio & virtual
Carly Britton, founder of Diligent Fitness
100+
women coached
toward lifelong strength
Strength.
Intentionally programmed full-body training
Small groups.
Individual attention on your form
Anywhere.
Live in-studio or on Zoom & on-demand
Every level.
Modifications for every movement
Move with us

Classes for every body

Intentionally programmed, small-group strength — pick the format that fits your life.

Studio Full Body
45 min
Intentionally programmed, small-group strength training targeting the full body. Small class sizes mean individual attention and guidance on your form to build muscle tone, get lean, and boost overall fitness. Every session ends with a short cardio segment for endurance — with modifications for all levels.
Book Studio →
Virtual Full Body
30 min
A fast-paced, full-body workout hosted live via Zoom, ending with a high-energy cardio circuit. Can't make the live time? Every session is recorded and uploaded to the on-demand library so you can train on your own schedule.
Required equipment: dumbbells & an exercise mat.
Join Live →
Senior Strength
Ages 65+
A strength class designed specifically for older adults to build muscle, maintain mobility, and support day-to-day independence. Exercises are suitable for all fitness levels, with modifications available for every movement.
Reserve a Spot →
Train from anywhere

Can't make it to Detroit? Train live with us from home.

Many women want to train with Carly but live too far for the studio. That's exactly what our virtual program is for — the same coaching, the same community, wherever you are.

See Virtual Classes →
Members training at Diligent Fitness
Real women, real results

What our community says

Consistency, not perfection — and a community of women cheering each other on.

5 Stars
Carly pushes me to do things I couldn't imagine doing, and she shows up so consistently that you can't help but step up your own consistency. Without outlandish fad workouts, she makes you believe you can do impossible things.
C
Cora
Studio Member
5 Stars
I've trained with Carly for years, in person and now through her on-demand library, and her approach has truly changed my life. She focuses on health, strength, and longevity, and makes results feel sustainable and empowering.
A
Aliya
On-Demand & Studio
5 Stars
Carly started a fitness class specifically to keep us strong as we age. Her instruction is personal, knowledgeable, and effective — and she plays old school music that makes it fun. We love her.
R
Robin
Senior Strength
5 Stars
Carly is a God-send — knowledgeable, tough but nice, and extremely hands-on. She provides resources, scaffolds, and alternatives to keep us moving. I'm so glad I found the Diligent Fitness community.
T
Tamara
Studio Member
5 Stars
Carly's dedication to fitness, nutrition, and her community of women is unmatched. She instills consistency and diligence in everyone she trains, and is the best accountability partner in reaching your health goals.
L
Lauren
Studio Member
5 Stars
I've been with Carly since 2020, when my gym closed during the pandemic. She pushes you without being overbearing, and my overall strength has improved — so important for a woman in her 70s like me.
M
Marcia
Virtual Member
5 Stars
I got on the scale and was 4 pounds down — I cried, I was so happy! I've lost 20 pounds total. Thank you for creating a space where people feel motivated, in a judgement-free zone.
♥
Diligent Fitness Member
20 lbs down
5 Stars
Great class today — down 9 lbs! Making healthier choices and moving my body is making a difference. You are the best!
♥
Diligent Fitness Member
Studio Member
5 Stars
I enjoy each and every one of your classes — they bring me not only strength, but happiness too. Thank you, my dear friend.
♥
Diligent Fitness Member
Virtual Member
Get in touch

Come train with us

Have a question, or ready to start? Book a class through our schedule, or send a message and we'll get right back to you.

Class Times
Mon–Thu & Sat mornings · All times Eastern

Send a message

We'll reply within a day or two.
Prefer to just start? Book a class →