Our Staff

Marty Owner

Marty Lavine: Owner

To Marty, it’s all about the science of strength. Marty’s expertise with the human body and patient style sets him apart in the industry. Marty has a MS in physical therapy and is a long time member of the Colorado American Physical Therapy Association, and has been practicing physical therapy since 1994. Marty provides the absolute best one on one attention, and total commitment to each and every individual that walks through the door. No matter what injury you’re rehabbing, or what sport you’re trying to get back to, Marty will make sure you’re on the fastest and most thorough road to recovery.



Christopher Flower

He may be known as “Flower” in the gym, but don’t let that fool you. Flower blends multiple workouts including HIIT (High Intensity Interval Training), boxing, weights and more to whip you into the best shape of your life.  Christopher runs the Kickboxing Classes at PUSH, and spends much of his day working with personal training clients.  You may often find him having his clients “hit the mitts”, and at times taking a few body blows himself.



Jodilyn Stuart

With Jodilyn, everyone is specialized and everyone works hard. Jodilyn has been a fitness professional since 1997, specializing in yoga and Pilates. Jodilyn works with clients to develop a specialized plan for you, which is sure to include Tabata, HIIT, kettlebells, TRX suspension training and many of other tools that PUSH has to offer for training.



Kara McKenna

As a busy mother of two, Kara understands life can be hectic. But that’s not an excuse for skipping a workout. Challenge Kara and find out just how hard core this mom can be.  Kara has trained at PUSH since we first opened in 2004, and has been ahead of the game practicing HIIT principles long before  it was the norm or any type of crossfit terminology was used.


Sean Sewell: NPTI NSCA and TRX Certified Trainer

Sean uses functional training to get people into the best shape of their lives so they can look great and feel great. Specializing in TRX(TRX/CERT), kettlebell and bodyweight training to create energizing and fun programs that help you feel better, lose weight and help you enjoy more of Colorado activities like skiing, snowboarding, biking, hiking and  rafting.   Sean worked in the corporate world for 15 years and knows how that can effect the body and mind.  So he left all that behind, in the passionate goal to help others on their path to being the best version of themselves possible.


Push Denver Brandon

Brandon, our youngest and newest trainer, comes to us one year out of school.  He completed his certification at the National Personal Training Institute and is certified in  NASM, kettlebells, power lifting, and mixed martial arts.  Brandon brings to PUSH his endless energy and a strong desire to help clients succeed in their personal health, fitness, and nutritional goals.  Brandon is available for personal training sessions and 1:1 kickboxing sessions. He will also be teaching several of the PUSH Circuit classes during the week.

Denver Push Gym Staff

Kathryn O’Connell

My philosophy on personal training is simple: stay active, be healthy and feel fit!I am an independent, certified personal trainer with an MA in Health Psychology and have trained for over 20 years. My focus is a healthy and fit lifestyle, tailored to your needs and schedule. I am qualified in nutritional counseling, expert personal training as well as coaching and motivational techniques.
Call today to book an appointment-special offer for first time clients; I am willing to train you & a pal for reduced rates.
It’s not just about counting calories anymore; it is about smart nutrition, feeling great, staying active and living the good life.