A New Form of Resistance Training

Resistance That Responds.

FOB is a new form of resistance training built around a moving weighted attachment. As it shifts, your body has to keep adjusting, helping you train strength, conditioning, coordination, and core control all at the same time.

Brooklyn, New York · Coached outdoors

How It Works

Book Your First Session

$120 per session · $80 for Founding Fobbers · No membership

What It Is

The weight does not stay still.

During FOB training, the weighted attachment moves as you move. Your body has to control it, redirect it, and stay balanced as the resistance changes. That turns simple movements into full-body training for strength, conditioning, and control.

A dumbbell only moves when you move it. This keeps moving on its own.

Why You'll Care

One training method.
Three ways it helps.

Move With More Control

Strengthen your core, improve your balance, and learn to control your body while the resistance keeps changing.

Build a Strong, Athletic Body

Train your core, shoulders, arms, and upper body while improving your conditioning. The goal is a body that looks strong because it can actually do more.

Keep Going When You Get Tired

Build the strength and conditioning to maintain better movement, control, and effort deeper into a workout, game, or active day.

Book Your First Session

WhereOutdoor courts across Lower Manhattan, Brooklyn, and parts of Queens, including locations as far east as Jamaica. You choose your preferred area when you inquire, and the exact court is confirmed with your session time.
WhenSessions run mornings through early afternoon on gated outdoor courts.
How longAbout one hour, start to finish.
What you doJah coaches you through the FOBallast from your first rep, at your pace.
What you leave withYou will know how the training feels, which movements suit your level, and what to work on next.
Why it is coachedThe equipment and the method were built together, so the movements are taught in person rather than guessed at.

Gyms and Organizations

Bring FOB to your people.

Gyms, teams, schools, events, and other groups. Tell us what you need.

What are you looking for?

An Original Training Practice

FOB was built from the ground up.

FOB is an original resistance-training practice created by Jahsua Matthews. He studied exercise science, has spent years coaching people in gyms and in private training, and built the FOBallast himself, rebuilding and testing each prototype on his own body before teaching it to anyone else. The equipment and the training method were developed together.

The practice is still growing, and new movements and progressions are being tested and added. For now FOB is taught through supervised sessions so each person learns to control the moving resistance safely and understands how the training should feel. Jah coaches every session personally.

Watch the first field test

Founding Fobber 01 · Field Test

Questions

Before you book.

Do I need to be fit or experienced?

No. FOB scales to every level and your first session is coached from the first rep. Nobody is thrown in.

Is this a gym membership?

No. FOB runs as individual coached sessions at outdoor training locations in Brooklyn. You pay per session, nothing recurring. Outdoor courts and open training areas are used because they give you enough space to use the equipment safely.

Do I need to play a sport?

No. FOB is for general fitness, strength, conditioning, body control, and athletic performance. Sessions are adjusted to your experience and goals, whether you are beginning to exercise, already train regularly, or play a competitive sport.

What should I bring?

Comfortable training shoes and water. The FOBallast and everything else is provided.

The weight does not stay still.

One training method.Three ways it helps.

Move With More Control

Build a Strong, Athletic Body

Keep Going When You Get Tired

Book Your First Session

Bring FOB to your people.

FOB was built from the ground up.

Before you book.

One training method.
Three ways it helps.