KickboxingEllen is a highly trained physiologist with a lifelong passion for health and fitness. Her desire to be on the cutting edge of fitness inspired Ellen to design “The Ultimate Workout,” which became the foundation for Orangetheory Fitness – hailed by the New York Times as an effective new plateau-busting workout. Ellen is a Partner and Founder of Orangetheory Fitness, and Owner of Ellen’s Ultimate Workout gym in Florida.

Inspired by her father Arthur Calandrelli, a very popular Physical Education teacher and coach in Niagara Falls, NY, Ellen has been motivating and training clients for over 35 years. She holds a Bachelor’s Degree in Physical Education and a Master’s Degree in Exercise Physiology from the University of Buffalo in New York.

Before perfecting her signature workout, Ellen worked at the prestigious Bonaventure Spa when it was the main fitness retreat for the stars, as well as managed Williams Island Spa and The Eden Roc Spa on South Beach. KMBT_C364-20150618092718She served as a TV fitness expert for six years, authored fitness columns for The Miami Herald and South Florida Sun-Sentinel and earned the title of Business Woman of the Year in South Florida.  Through her position as fitness editor for Women’s Fitness magazine, Ellen began focusing on Pilates and opened the first group equipment-based Pilates studio in Ft. Lauderdale, Florida.

Recent Accolades:
#1 on 50 Fastest Growing Women-Owned/Led Companies
2017 IHRSA Woman Leader of the Year
2016 EY Entrepreneur of the Year for Service Based Business

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Orangetheory Fitness ®

Orangetheory® is a heart rate-based group workout that combines science, technology and expert coaching to help members live a longer, more vibrant life. Orangetheory is based on the science of five-zone heart rate-based interval training, designed to boost metabolism, burn fat and more calories, and improve your cardio metabolic, cardiorespiratory and mental health. In a given class, spend 12 to 20 minutes in ‘The Orange Zone' for more results. The workouts utilize connected technology to track performance, so members can view their detailed results in real-time, and monitor progress over time. Each of the workouts is led by a certified coach to ensure members of all fitness and ability levels can be successful and continually challenge themselves.

Ellen's Ultimate Workout

Ellen’s Ultimate Workout is South Florida’s most complete fitness studio, offering the best in cardio training with a focus on heart-rate training to shape your body to the best it can be. In addition to the signature Ultimate Workout, the studio offers spinning, Pilates with full reformers, Ultimate Ballet Barre, along with the new hot yoga and Ultimate Parent Child sessions. More than 150 classes per week are led by a team of certified instructors in a state-of-the-art, 7,000-square-foot studio located in Davie, servicing the Fort Lauderdale, Cooper City areas.


"The fundamental principles of Orangetheory not only helped me in my workout, but motivated me to accomplish goals outside of the gym I never could have dreamed of."