Massy Arias
Dominican-born fitness creator, trainer and entrepreneur behind TRU Training, sharing strength workouts, mobility routines and practical food ideas.
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Latest
Massy’s happenings, collected from public sources, plus their backstory and Starbook, where fans write.
Known for
TRU Training
YouTubeOverview
- Full name
- Massiel “Massy” Indhira Arias
- From
- Dominican Republic
- Based in
- Los Angeles, California
- Work
- Certified personal trainer, fitness creator and entrepreneur
- Early online name
- Mankofit
- Community
- MA Warriors
Mini bio
How it started.
Born in the Dominican Republic and later based in Los Angeles, Massy describes movement as a turning point during a period of deep depression. Sharing what they learned about exercise and nutrition grew into a career helping others build healthier routines.
Finding an audience.
In a 2016 ELLE interview, Massy recalled starting the @mankofit account in 2012 and later changing it to @massy.arias so followers would know their name. Personal experience became the foundation for educational fitness content.
Building a community.
TRU Training brings together workouts, nutrition guidance and the MA Warriors community. Projects include Sculpt, a 60-day strength and mobility plan, and Training Tasha, a series following one participant through movement, food and mindset changes.
Beyond the workout.
Massy appeared in COVERGIRL’s 2017 Made in the Mirror campaign alongside Ayesha Curry, Issa Rae, Katy Perry, Maye Musk and Shelina Moreda. In 2026, conversations with women in fitness became part of adidas’s Between Reps podcast.
Creditschronological, newest first
Podcasts
- 2026Between RepsHost of conversations with Sohee Carpenter and other women in fitness
- 2025UNRULY WITH SHELAH MARIE, episode 21Guest
Campaigns
- 2017Made in the MirrorCOVERGIRL campaign participant
Awards
Quotes
Movement became therapeutic for me, and nutrition became increasingly importantMassy Arias, TRU Training About page
Trivia
- Mankofit was the name fans knew before Massy switched the account to their own name.
- Their training style combines resistance training, calisthenics, yoga, HIIT and sprinting.
- Massy creates content for English-speaking and Spanish-speaking communities.
Find Massy
Follow Massy for workouts, recipes and conversations about building a healthier life.
Are you Massy Arias?
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