Chyna is one of our OG TIU trainers, and movement has been part of her life from the beginning. She grew up an athlete, and what started as sports eventually became a love for fitness. Over the years, her “why” has shifted from performance and aesthetics to simply wanting to feel strong, present, and grateful in her own body. After a lot of life unfolding in recent years, she’s grateful to be back with the TIU community. Chyna brings real conversations, unfiltered moments, and a grounded approach to womanhood, wellness, and movement. She can’t wait for you to experience this next chapter with her.

Stef is one of our OG TIU trainers, a former pro-hooper turned strength coach whose life has always revolved around movement, community, and the California coast. She specializes in strength training and loves helping women discover how empowering it feels to build sustainable habits and push their limits in a way that feels good. Growing up in Manhattan Beach—the original TIU home—fitness has always been part of her foundation. Being back with the TIU community feels like returning to her roots, and she’s so excited to share this next chapter with you.

Tori is one of our OG TIU trainers, and movement has always been her way of staying grounded through every chapter of life. What started with filming workouts and building programs grew into a deeper purpose through motherhood: helping women feel confident, capable, and connected to themselves. She specializes in barre, Pilates, and strength training, bringing warmth, honesty, and that “we’re in this together” energy to every workout. Returning to TIU feels like coming home, and she can’t wait for you to move through this next chapter with her.

Jackie Marra is a pilates and yoga instructor, sound bath facilitator, and founder of THE RETREAT, wellness retreats centered on mindfulness and movement. Jackie blends yoga, pilates, and sound healing to empower students and help them achieve balance and healing through mindful movement.

Brooke Burke is an entrepreneur, TV personality, and women's health advocate, known for founding the wellness app Brooke Burke Body. She currently hosts "Penn & Teller: Fool Us" on The CW and ShopET on "Entertainment Tonight." A former "Dancing with the Stars" winner and co-host, Brooke is also recognized for her roles on E!’s "Wild On!" and CBS’s "Rock Star."

Call her your inspiration leader! Chevy is bringing you her uplifting words of encouragement that will make you feel like a badass woman! She gives you a major variety of workouts too, including strength sessions, barre-sculpt, and yoga flows! Get ready to sculpt your body from head to toe.

Jenna Willis is a sought-after trainer known for her mind-body approach to fitness. With clients like Liza Koshy and Camila Cabello, she focuses on making workouts enjoyable and accessible for all levels. A former Division 1 volleyball player, Jenna specializes in strength, HIIT, and metabolic conditioning. Her methods have been featured in top outlets like Women's Health and Cosmopolitan.

Prepare for a super serene environment when you press play on Alex’s yoga sequences! The 500-hour vinyasa yoga instructor incorporates athletics, alignment cues, and a spiritual element into each of her sessions. With her positive vibes, encouraging words, and super helpful posture points, you’ll definitely end her workouts feeling like your best self!

Liz is a wellness leader, NASM-certified trainer, and founder of the Best Case Scenario Substack. Formerly the Editor-in-Chief of Women’s Health, she’s spent her career at the forefront of fitness and content at brands like SoulCycle, Well+Good, and SELF. She’s also the author of Own Your Morning and a passionate voice for helping women feel their best, one day at a time.

Angela Gargano is a strength coach, former Division I gymnast, and 4-time American Ninja Warrior who brings major power and motivation to every workout. As the founder of Pull-Up Revolution, she’s on a mission to help women tap into their strength—physically and mentally. Angela’s workouts are bold, uplifting, and designed to push you past your limits while reminding you just how unstoppable you truly are.

Kristina Earnest has been a TIU trainer for years, bringing her signature mix of strength, energy, and real-life experience to every workout. A certified personal trainer and group fitness coach with over a decade of teaching HIIT, strength, cycling, mobility, boxing, and treadmill training, she’s also a mom of three living in New York — so she knows the power of efficient, effective movement when life is full. Kristina shows up to help you push with purpose, feel confident in your body, and stay consistent with a training style that’s motivating, athletic, and seriously fun to follow!

A fitness professional specializing in strength, HIIT, and mobility workouts, Dalia has a passion for helping women find freedom and joy in movement!

Allegra Paris is a certified personal trainer and nutrition coach with a passion for empowering women through exercise both mentally and physically. She is also a fitness model and founder of Bikini Body health & wellness workout classes.

Dani specializes in all things shadow boxing, HIIT, and strength based workouts that will challenge and empower you! This LA local with 10+ years of boxing experience brings you uplifting energy and contagious positivity in every workout. She focuses on helping you feel confident, strong and empowered - helping you accomplish all of your fears!

Alexis is a flexibility coach passionate about empowering individuals to enhance flexibility, relieve pain, and find relaxation through mindfulness and stretching. Her classes aim to help students become more comfortable in their bodies, as well as cultivate a mindset of presence that helps paves the way for a more peaceful and fulfilling life overall.

Katrina Scott is the co-founder of Tone It Up and the creator of the 6:40 program. She studied kinesiology in college and graduated with a degree in Health Science and Fitness. She specialized in strength training, yoga sculpt, and pre- and postnatal fitness. Her #1 goal: helping you live the life of your dreams!

Yami Mufdi is a multi-faceted health and fitness coach who loves to mix it up! Whether it be lifting heavy at the gym, sweating it out with a HIIT workout, or flowing at the yoga studio, she loves it all!

Founder of Spiced Pilates and certified instructor, Amber shows you all the moves you need for a strong pilates practice. Join her for low-impact, muscle-toning routines.

This Aussie expat is the Founder of Sweat with Bec, and is the the Booty Band queen. As a certified strength coach, she delivers workouts that are low impact yet high intensity.

Natasha specializes in strength, endurance, and bodyweight workouts that will challenge and empower you! She’s a NASM certified trainer and founder of Making Fit Count Lifestyle.

Get ready to turn up the heat with your new Tone It Up Trainer. Daniela is a fitness enthusiast with a passion for form and detail in workouts. Specializing in glute activation and core stability, she aims to alleviate knee and lower back pain through carefully curated exercises. With a knack for making kettlebell training fun and approachable, she's excited to share her dynamic routines!