Welcome to Bellfit Studio

Bellfit Studio is a place to train smarter, move better, and feel stronger, with expert-led sessions designed to fit your lifestyle. Whether you’re a beginner or already active, you’ll find a supportive environment that helps you stay consistent and see results that last.

• Start your training

Personal Training

One-on-one attention tailored to your goals and fitness level. Perfect if you want focused coaching, clear structure, and a program built just for you.

• Learn more

Semi-Private Training

Train with up to 3 people in a structured, motivating environment. You’ll still get personal coaching while enjoying the energy and accountability of a group.

• Learn more

Online Coaching

Custom programming, video feedback, and full support from anywhere in the world. Train with expert guidance, on your own schedule.

• Learn more

★ ★ ★ ★ ★

Janhvi Surelia

I’ve been working with Martha for nearly a year and at 35, after 2 children, I am the strongest and most confident in my body I’ve ever felt. She honours my individual needs whilst pushing me to achieve my goals, with her expert knowledge and kind nature. The BEST personal trainer I have ever worked with 😊

★ ★ ★ ★ ★

Maria Ponzellini

Mi alleno con Marta da quando ho iniziato durante il COVID su consiglio di una cara amica, e da allora non l'ho più lasciata. È una professionista incredibile, sia come personal trainer che nei piccoli gruppi e nelle sessioni online. Riesce sempre a creare allenamenti personalizzati, motivanti e super efficaci, facendomi sentire seguita e supportata. La consiglio senza esitazioni a chiunque cerchi un allenamento funzionale serio e coinvolgente!

★ ★ ★ ★ ★

Claudio Vertemati

Ho conosciuto Marta 1 anno fa a 69 anni e ho incominciato a frequentare la sua palestra e i suoi metodi di trainer e devo dire che la mobilità fisica e il mio allenamento fisico è cambiato notevolmente in meglio. Claudio

★ ★ ★ ★ ★

Elisa Gallini

Marta è molto attenta, precisa e disponibile. Adegua l’allenamento alle tue capacità e ai tuoi obiettivi. Una meravigliosa scoperta, una magnifica Personal trainer

Meet the founder

Marta Arévalo

About MeHi, I’m Marta, Strength & Kettlebell Coach, founder of Bellfit Studio, and the creator of this method.My ApproachI help people build lasting strength, the confidence that carries into daily life, and the freedom to move pain-free, training with purpose, not punishment.Why KettlebellsKettlebell training became the foundation of my approach because it develops not just strength, but also speed, agility, and explosive power. These qualities transfer directly to sports performance and everyday life.International ExperienceOriginally from Spain, my path as a coach started in Australia, where I worked as a personal trainer and gained experience with a diverse range of clients. I also hold certifications from both Australia and the USA, which allow me to combine international standards of training with my own method.A Method That Fits LifeMy method is built around simple, consistent training. Over the years, I’ve seen that most people don’t need to train every day to see results. For many, three sessions a week hit the perfect balance — enough to make steady progress and stay injury-free, while still leaving time for family, work, and hobbies.Equipment I UseMy coaching is centered around kettlebells for their versatility, but I also integrate barbells and other tools to keep training balanced, adaptable, and tailored to each client.Who I HelpThis combination has proven especially effective for parents and busy professionals who want workouts that deliver results without taking over their schedules.TodayBased in Italy, I coach clients both in-person and online, helping them train smarter, move better, and feel stronger for the long run.

• Services