KLEINFITNESS

Get ready for a better you!

KLEINFITNESS Gilbert and Mesa Arizona | Fitness, Exercise, Autism, Autistic, Spectrum Disorder, Adaptive Fitness Program, Trainer, Coach, Strength Training, Personal Trainer

Your East Valley Adaptive Fitness Professionals

Reaching your fitness goals or helping your child reach there’s can be challenging with all the misinformation concerning diet and exercise. We will create a personal plan covering Nutrition, Exercise, and Recovery. Whether your goal is weight loss, weight gain or just better metabolic health and longevity, we can help you achieve it. Click the button below and lets start the journey together.

Meet Coach Julian

Julian Klein – Personal Trainer | Adaptive Fitness Coach | NASM-Certified

Julian Klein is a passionate Personal Trainer based in Arizona, offering both in-person and online coaching to help people build strength, improve their health, and feel more confident in their bodies.

He is the sole contracted Personal Trainer at the City of Gilbert’s Freestone Recreation Center, where he provides personalized 1:1 training for clients of all backgrounds and fitness levels.

In 2023, Julian launched the Adaptive Fitness Program to support youth on the autism spectrum through movement, strength, and social development. What started as a small passion project quickly became a cornerstone of his work. In 2025, he brought on Trish, a fellow coach and autism advocate, to help grow the program and expand its impact.

Julian is certified through the National Academy of Sports Medicine (NASM) under the NCCA (National Commission for Certifying Agencies) and is currently pursuing a degree in Exercise Science to further his expertise.

My passion is helping you achieve your fitness and wellness goals—wherever you’re starting from.”

KLEINFITNESS Gilbert and Mesa Arizona | Fitness, Exercise, Autism, Autistic, Spectrum Disorder, Adaptive Fitness Program, Trainer, Coach, Strength Training, Personal Trainer

Meet Coach Trish

KLEINFITNESS Gilbert and Mesa Arizona | Fitness, Exercise, Autism, Autistic, Spectrum Disorder, Adaptive Fitness Program, Trainer, Coach, Strength Training, Personal Trainer

Trish is a 38-year-old autistic mom of two wonderful children who are also on the spectrum. Growing up, physical activity and sports helped her thrive both socially and emotionally, shaping her passion for fitness and inclusion.

As a mother and coach, Trish is dedicated to helping others on the spectrum build confidence, teamwork, and joy through movement. She creates a supportive environment where every individual can grow and thrive.

Trish holds multiple professional certifications, including:

  • CPT (Certified Personal Trainer)
  • STC (Suspension Training)
  • RKC (Russian Kettlebell)
  • FTS (Functional Training Specialist)
  • SMR (Self-Myofascial Release)
  • PNF (Proprioceptive Neuromuscular Facilitation)
  • CES (Corrective Exercise Specialist)

Her wide range of expertise allows her to design adaptive fitness programs that meet each client’s unique needs.

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Chantil profile picture
Chantil
6 months ago
Brian Arvidson profile picture
Brian Arvidson
8 months ago
Julian has been incredible for my teenage son, who has ASD. Under his guidance, my son has lost weight, gained energy, and built real confidence, in himself and with socializing with others. More importantly, Julian makes him feel comfortable and excited to train. he looks forward to working out and getting strong. Julian has a gift for working with kids of all abilities, teaching not just fitness but the joy and value of exercise. We’re so grateful for the positive impact he’s had on our son’s health and happiness.
Rachel Kuehl profile picture
Rachel Kuehl
1 year ago
I started working with Julian almost a year ago, and I'm so glad I did! Julian is very approachable and personable, and he's also extremely thoughtful and considerate about how he puts together training plans. I have a health condition that makes me prone to dizziness, and Julian always customizes my workouts with this in mind. He'll even adapt the workout plan right there in the moment depending on how my health is doing that day! As a result, I've made more progress than I ever thought possible, and I feel so much stronger and healthier than I did a year ago. I have very much appreciated Julian's coaching, and would definitely recommend working with him!
Julian has been working with my son for the last few months. He’s dropped about 25 lbs and is feeling so much better about himself. My son is quiet and introverted; Julian works at his pace and allows him to feel comfortable and supported. My son actually looks forward to his time with Julian!!!
K Ward profile picture
K Ward
2 years ago
Coach Julian provides an stress-free learning and fun atmosphere! My son has improved his strength level capability and feels more confident about his self-image.
Sheila S profile picture
Sheila S
3 years ago
Julian has been working with my child for two months now, I couldn’t be more grateful for his knowledge of the body and using that to help my child with areas of weakness. He has motivated my child so much and we have seen so much improvement in endurance - my child has chronic lung disease, Julian is very mindful of this and ensures that he monitors heart rate,/vitals. most importantly, we have seen so much improvement in self-esteem and overall health. So thankful for Julian’s help. HIGHLY RECOMMEND!
My son who has many challenges loves working out with Julian. As a parent, Julian has really listened and taken to heart my son’s physical needs. Due to several shoulder dislocations caused by seizures Julian has 100% strengthened his shoulder. It’s tough having to go to ER after every seizure when all ya wanna do is rest. Julian has saved Jadin from so much time in ER’s. Also, Julian has built up his muscles all over his body. I can see the improved posture and overall health. Extremely knowledgeable Trainer.
Julian goes the extra mile by friending my son on social media sites and even liking and commenting. That means the world to Jadin. Thank you Julian for all you do and the extras.

Adaptive Fitness Program

Take Advantage of a FREE training session with NO commitment

The Adaptive Fitness Program is exclusive to those who are aged 7-30 who have any developmental or genetic disorder (Autism, Down Syndrome, ADHD, etc). Coaches work with any problem any kid may face regarding things like mobility, coordination, and communication.

We are all about adaptive fitness. For a kid with autism, that usually means working on their communication, functionality, and neuroplasticity. This program covers that and more! We engage in strength training, athletic style performance training, mobility, social interaction and more!

Engaging in this program assists each kid with their physical and mental health. It lets them crush goals, get fit, and feel better. They meet lifelong friends, get healthy, and become the best version of themselves!

Current promotions on our Adaptive Fitness Program

FREE SESSION
NO COMMITMENT

We understand your days are full and you dont have time or money to waste. We promise to do neither. With just a few minutes on the phone we can schedule your FREE SESSION

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