6 breaths per minute
6 breaths to strength

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HYPOXiX uses evidence-based, scientifically tested breathing to increase deep core strength and total-body power — without unnecessary strain. Breathing at 6 breaths per minute helps regulate the nervous system during and after training, accelerating recovery and reducing the risk of injury and burnout.

Deep Core Activation

Breath-driven training strengthens the core from within, improving stability, posture, and total-body power.

Nervous System Balance

Controlled breathing at 6 breaths per minute calms the nervous system, enhancing focus and accelerating recovery.

High Results, Minimal Strain

Achieve measurable strength and endurance gains without unnecessary stress on joints and muscles.

Accelerated Recovery

Optimized breathing improves oxygen efficiency, reducing fatigue and supporting sustainable performance.

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HYPOXiX is a revolutionary fitness method combining intentional breathwork + smart exercise that achieves high-impact  mental and physical results

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Elite tools and science-backed programming designed to unlock your strongest core, peak resistance power, and total-body evolution.

GREATER CORE STRENGTH build killer core-awareness and connectivity. Awareness is the key to change and Ab-Ribbon is your virtual trainer, enhancing mind-core connection to properly support, protect, shape, and engage during your workout
AB-RIBBON

BETTER BAND KIT with a resistance range of 4lbs to 80lbs, latex-free tubular bands for superior hand-comfort, a unique zero-slack mounting point mechanism, and ultimate portability, BANDSQUID is a Better Band Kit with everything you need for HYPOXiX program
BANDSQUID

HUNDREDS OF WORKOUTS plug into hundreds of workouts taught by celebrity-trainer AJ Fisher. HYPOXiX workouts are designed to scientifically progress the body over 8-week periods to accelerate physiological change and prevent stagnation or over-training that can stall results
HYPOXIX Studio

6 Breaths per Minute
6 Breaths to Strength

Each inhale and exhale strengthens your core, calms your nervous system, and enhances performance — all through precise, mindful breathing.

Feel Your Core
Strengthen With Ease

Ab-Ribbon helps you sense and activate your deep core through simple tactile feedback.

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BLOW
BLOW
HISS
HISS
SHH
SHH
INHALE
INHALE
EXHALE
EXHALE

Meet the Creator

AJ Fisher, MSc, CSCS, is an exercise scientist, inventor, researcher, and founder of HYPOXiX, where she combines functional movement, breathing science, and altitude training to help people improve performance, recovery, body composition, cognitive function, and overall well-being.

A former Broadway performer turned exercise scientist, AJ has spent more than 20 years helping clients optimize health, longevity, and performance. Her clientele includes celebrities, executives, elite performers, and major film and television productions seeking a performance and injury-prevention advantage. Clients include Danai Gurira, Karlie Kloss, Sarah Jessica Parker, Gwyneth Paltrow, Stella McCartney, Amy Schumer, Lauren Cohan, Jessica Seinfeld, Jerry Seinfeld, Blythe Danner, Bette Midler, Christian Serratos, Susan Kelechi Watson, Corey Stoll, and others.

AJ is the creator of HYPOXiX®, a groundbreaking fitness and wellness system that integrates evidence-based breathing strategies with exercise to improve core function, nervous system regulation, recovery, and human performance. She is also the inventor of Ab-Ribbon® and BANDSQUID®, and founder of the HYPOXiX Institute, a nonprofit dedicated to advancing research in breathwork and altitude training while making these tools and educational resources more accessible to underserved communities. Her ongoing research explores the effects of controlled breathing, exercise, and altitude exposure on metabolism, performance, cognition, and women's health.

Through HYPOXiX, AJ's mission is simple: help people move better, breathe better, think better, and live better.

NYC HYPOXiX CLASS
ALTITUDE TRAINING
BODY COMPOSITION TESTING

The HYPOXiX INSTITUTE NYC offers high altitude rentals, altitude small group class, and body composition testing.

Sea level hypoxic training is altitude training without being on a mountain. You are exercising, resting, or sleeping in an environment made up of less oxygen than that at sea-level (21%) in order for the body to adapt to the lower than normal oxygen levels.

The beneficial physiological outcomes of adapting to low oxygen including enhanced endurance, energy, cognition, strength, and body composition.

The next HYPOXiX Collective starts in

A focused 8-week journey designed to transform strength, recovery, and performance.

12

DAYS

12

HOURS

12

MINUTES

12

SECONDS

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Discover the essential tools behind the HYPOXiX method — precision-designed equipment and guided programs that work together to build strength, control, and sustainable performance.

Tools That Support the Method

Designed to enhance breath control, improve efficiency, and support smarter, low-impact training.

Train From Within. Perform Beyond Limits

HYPOXiX Fitness combines breath control, intelligent tools, and structured programs to build real core strength without unnecessary strain.

Designed for sustainable performance, deeper activation, and long-term results — this is training that works with your body, not against it.

Built on Science Designed for Real Performance

Evidence-Based Method

Backed by scientific research

Expert-Led Coaching

Designed by AJ Fisher, MSc CSCS

Low-Impact Performance

Train harder with less strain

Structured 8-Week Programs

Designed for measurable progress

Real Results. Measured Transformation

★★★★★

"AJ's training system is the Harvard of boot camps; the Broadway of rhythm and joy; and the Mayo Clinic of exercise science - resulting in jaw dropping transformations."

Nicole J

Hudson, NY

★★★★★

"I am for the most part without back pain for the first time in decades.The breath work has given me the "brace" that I need to do these movements. AJ Fisher is the total bomb, I've never met anyone in the fitness industry with the breadth of knowledge education and coaching skills.."

Adele M

Brooklyn NY

★★★★★

"I just want you to know that in the past few days, I have had three people ask what I am doing to look so good, one just now by the pool and at 58 years of age, I am wearing a two piece!"

Melinda D

Roanoke VA

★★★★★

"The breathing routine brings everything together, making it the most efficient and effective workout I have ever experienced. After completing 4 months of Hypoxix training, my overall endurance with other athletic activities is unbelievable!"

Greg C

Middleboro MA

Celebrities love it too!

★★★★★

"Obviously, the whole thing was a prank and shared in good fun. Schumer even made it a point to note that Fisher is actually an "amazing" trainer. "[She's] the reason I feel strong and good and have recovered from my herniated discs and C-section," Schumer wrote.  - FAITH BRAR for SHAPE magazine

Amy Schumer

Amy Schumer Sent Her Trainer a Real Cease and Desist Letter for Making Her Workouts Too "Extreme"

★★★★★

"For the last three years, I've worked out with my trainer AJ Fisher, three or four times a week. I started working with her when I got the role of Okoye. I was about to go into pre-production, and I felt like I needed to amp up my fitness and endurance. I call her the MacGyver of trainers because she can create an elaborate course in your living room with just a coffee table and a couple of resistance bands. She mixes things up--it's never the same workout, so your body can't get used to it."  - DANAI GURIRA speaking to SHAPE

Danai Gurira

How Danai Gurira Trained for Some of Her Most Iconic, Badass Roles

★★★★★

"When she needs to kick her training up a notch, she schedules sessions with her longtime trainer, AJ Fisher. Rooted in a precision method she created, Fisher’s workouts focus on balancing muscle function and boosting strength and flexibility. The technique is especially beneficial for Lauren, who suffers from achy hips and lower back pain from a herniated disc after being rear-ended twice and injuring her tailbone when she fell while waitressing back in her 20s. Through it, she learned to do muscle activations before starting cardio: deep exhalation ab exercises and engagements of the muscles on either side of the spine to “turn on the right muscle to walk,” says Lauren. Exercising is less painful because of these small movements.."

Lauren Cohan

‘Walking Dead’ Star Lauren Cohan Says A Social Media Break Helped Slay Her Real-Life Demons

★★★★★

I do some form of exercise. I have so many injuries, I’m pretty much an orhopedic nightmare. I work with AJ Fisher of, who is really patient and intelligent about how not to get hurt. Otherwise I go to a yoga class.

Jessica Seinfeld

I work with AJ Fisher of, who is really patient and intelligent about how not to get hurt.

★★★★★

“AJ collaborated with Stella McCartney and Karlie Kloss on an Adidas international campaign.”

Karlie Kloss x Adidas x Stella McCartney campaign
★★★★★

“AJ integrated breath control with strength design to prepare Gwyneth Paltrow for this Harper’s Bazaar grocery-store cover shoot.”

Gwyneth Paltrow Harper’s Bazaar shoot
★★★★★
Christian Serratos

AJ trained Christian Serratos for her role in Selena

★★★★★
Corey Stoll

AJ trained Corey Stoll for his role as Michael Prince in Billions