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Michelle Bertran

FierceFit Miami came about when founder, Michelle Bertran, realized that there was nothing else she saw herself doing upon graduating from the University of Miami besides becoming an entrepreneur and opening up her own gym. Since she was just 14 years old, fitness has been a great passion of hers. Michelle realized that Miami lacked a bit of variety when it came to the types of workouts that were offered. That is where high intensity interval training was introduced to her indoor bootcamp. Michelle created workouts that are short and fun, but still incredibly effective and safe.

At FierceFit, you can find people of all ages and fitness levels. As a matter of fact, we even have members who are recovering from injuries and are looking to strengthen/get back into shape without further injuring themselves. We pride ourselves in being a genuine ‘no judgement zone’ and helping others reach their fitness goals in the most effective and safe way we know how.


Gabriel Burrell

Born and raised in Miami, growing up Gabriel played plenty of sports like baseball, basketball, and football. Once he enrolled in South Miami Senior High, Gabriel joined the wrestling team and that is where he grew to love fitness. Wrestling showed him true discipline and perseverance. It also taught him how to control his nutrition and slim down from 170lbs to 145lbs.

During one match Gabriel got injured and dislocated his shoulder, which was a blessing in disguise. He did physical therapy for shoulder rehabilitation and learned so much that it helped him decide what he wanted in life. Gabriel then decided to pursue this field and got a Bachelors degree in Sports Medicine. He hopes to one day become an exceptional physical therapist. As a trainer, Gabriel is passionate about helping people reach their ultimate potential and making any goal attainable for our members.


Martin Abbate

Born in Miami, Martin’s road to becoming a trainer all began in high school. Attending Coral Reef Senior High and being surrounded by sports and fitness triggered something in him. From being obese at a young age and transitioning to a healthier lifestyle, the information gained along the way resulted in a passion to help others achieve the same. Along with the same drive to help others, Martin is currently enrolled in the Paramedics program at Miami Dade Medical.

From an age of 15, Martin began to assist others in the health and fitness lifestyle but it wasn’t until his senior year of high school where he realized he could do more. Beginning with employment at a traditional gym and acquiring his PTA Global certification, he realized motivating people to reach their goals and even surpass them was what inspired him as well. From teaching bootcamp classes to one on one personal training and Trigger Point Therapy, Martin will give you the tools necessary to smash your goals and continue on a healthy path of life.