Kathleen Russell, Personal Trainer · Founder, KAiRUS Fitness at Trinity Training Facility in Long Beach
Personal Trainer · Founder, KAiRUS Fitness

Kathleen
Russell

  • Strength Training
  • Personal Training
  • Fat Loss
  • Muscle Building
  • Nutrition Education

I am Coach Kat, founder of KAiRUS Fitness and a NASM Certified Personal Trainer. Your body should be an asset, not a limitation: I help clients build sustainable habits, strength and the body composition they want, using a science-informed approach shaped by lifelong involvement in sports, a B.A. in Biology and years of experience working as a chemist.

Certifications

  • NASM-CPT

Trinity Training Facility · Long Beach, CA

At A Glance

PERSONAL TRAINER IN LONG BEACH.

Also known as Coach Kat.

Kathleen Russell, known as Coach Kat, is a personal trainer at Trinity Training Facility, 117 W 5th Street, Long Beach, CA 90802, and the founder of KAiRUS Fitness. Coach Kat is a NASM Certified Personal Trainer with a B.A. in Biology and years of experience working as a chemist, and helps clients build strength, reduce body fat and form sustainable habits through purposeful training, nutrition education and accountability.

01

BUSINESS

Founder of KAiRUS Fitness

02

ALSO KNOWN AS

Coach Kat

03

CERTIFICATIONS

NASM-CPT

04

EDUCATION

B.A. in Biology

05

BACKGROUND

Lifelong involvement in sports; years of experience working as a chemist

06

FOCUS

Strength, muscle building, body composition and sustainable habits

07

PASSION

Nutrition and cooking nutritious, practical meals

08

BOOK

Free intro session: use the form or call 562-619-9368

The Story

A body that is an asset, not a limitation.

Kathleen Russell, who goes by Coach Kat, believes your body should be an asset, not a limitation. Fitness should help you build a body you love seeing in the mirror, one that is also strong enough to keep up with the life you want and to support your health, independence and quality of life for years to come.

Coach Kat is the founder of KAiRUS Fitness and trains clients at Trinity Training Facility in Long Beach.

The Background

Sports, biology and chemistry.

Coach Kat's approach brings together a lifelong involvement in sports, a B.A. in Biology and years of experience working as a chemist. That background shapes a science-informed perspective on training and nutrition, and the belief that lasting progress starts with understanding your body, learning the purpose behind your efforts and making informed choices you can maintain.

Explore strength and conditioning, weight loss and nutrition at Trinity. Coach Kat is a certified personal trainer, not a medical provider or a licensed dietitian.

The Approach

Purposeful training, nutrition education and accountability.

Coach Kat helps clients build sustainable habits that support their individual goals, whether returning to movement after a sedentary period, building muscle, reducing body fat or developing a more consistent relationship with exercise. Through purposeful training, nutrition education and accountability, the work moves toward greater strength and the body composition you want.

The focus is on a routine that fits your life while you build the knowledge and confidence to take ownership of your health.

Nutrition

Healthy habits that fit a real week.

Nutrition is an important part of the process and a personal passion. Outside the gym, Coach Kat loves cooking nutritious, delicious, practical meals, and brings that same practicality to coaching: healthy habits should feel achievable and work within your everyday routine.

Is Coach Kat Right For You?

Is Coach Kat the right trainer for you?

Coach Kat is a strong fit if any of these sound like you:

  • You are taking your first steps back into fitness after a sedentary period.
  • You want to build muscle, reduce body fat and feel stronger and more confident in your body.
  • You want to understand the purpose behind your training and nutrition choices.
  • You have an existing foundation and want to build on it.

The next step is a free intro: use the form below or call 562-619-9368.

Training With Kathleen

STRENGTH & CONDITIONING
AT TRINITY.

All Strength & Conditioning trainers →

Strength is the foundation everything else stacks on. Trinity's strength & conditioning trainers build athletes, professionals, and lifelong residents who want to move heavy, recover hard, and keep doing it for decades.

01

ASSESSMENT FIRST

Movement screen, training history, current lifts. Your trainer builds the program around your body — not a template they hand to every client.

02

PROGRESSIVE OVERLOAD THAT HOLDS UP

Programmed cycles with deloads built in. You'll see the numbers move week over week without burning out.

03

CONDITIONING THAT DOESN'T KILL YOUR LIFTS

Energy-system work paired with strength training, not against it. Capacity grows. Recovery improves. Strength stays.

04

TRAINING ON THE FLOOR

Hands-on cues, video review, real-time form correction. Every session has a trainer who's watching.

Who Kathleen’s clients tend to be

  • Lifters chasing real PRs — not gym numbers
  • Athletes whose sport demands repeatable power
  • Professionals returning to the iron after years away
  • Anyone tired of training without a program

Where Kathleen Trains

THE ROOMS KATHLEEN
WORKS OUT OF.

One private facility at 117 W 5th Street, open daily 5am to 11pm. Sessions with Kathleen move through the rooms the program calls for.

How It Works

FOUR STEPS.
ONE TRAINER.

Trinity is a private training facility, not a big-box gym. You book Kathleen; Kathleen books the floor.

01

FREE INTRO

Use the form below or call 562-619-9368. Kathleen (or our team on their behalf) reaches out within 24 hours.

02

WALK THE FLOOR

Your goals, your history, and what your program will look like, plus a tour of the rooms it will use.

03

GET YOUR NUMBER

Each Trinity trainer sets their own rates and packages. Kathleen quotes yours directly; Trinity publishes no rate card.

04

START TRAINING

Sessions run in the rooms your program calls for, and the building is open daily 5am to 11pm.

How personal training works at Trinity →

Train With Kathleen

FREE INTRO
SESSION.

Drop your info. Kathleen (or our team on their behalf) will reach out within 24 hours to schedule your first session at Trinity in Long Beach.

BOOK A FREE INTRO SESSION

Your information stays at Trinity. We never share it. Reply STOP to opt out.

  1. 01 Who is Kathleen Russell at Trinity Long Beach?

    Kathleen Russell, known as Coach Kat, is a personal trainer at Trinity Training Facility, 117 W 5th Street, Long Beach, CA 90802, and the founder of KAiRUS Fitness.

  2. 02 What certifications and education does Coach Kat have?

    Coach Kat is a NASM Certified Personal Trainer and holds a B.A. in Biology, with years of experience working as a chemist.

  3. 03 What does Coach Kat specialize in?

    Strength training and personal training, including building muscle, reducing body fat and developing sustainable habits, with nutrition education as part of the process.

  4. 04 Does Coach Kat work with beginners?

    Yes. Coach Kat works with clients returning to movement after a sedentary period as well as those ready to build on an existing foundation.

  5. 05 What is Coach Kat's training philosophy?

    Your body should be an asset, not a limitation. Lasting progress starts with understanding your body, learning the purpose behind your efforts and making informed choices you can maintain.

  6. 06 How much does training with Coach Kat cost, and how do I book?

    Each Trinity trainer sets their own rates and packages, and Trinity publishes no rate card, so Coach Kat quotes directly. Use the form on this page or call 562-619-9368 to schedule a free intro session.

Book Your Free Intro →