Why Women Lift: Krystle


Personal Trainer, Singapore

Krystle is an ACE certified and a PTA Global certified personal trainer, and is also a certified AFPA Prenatal and Postnatal Fitness Specialist.

With a background in CrossFit and powerlifting, Krystle has been strength training for over five years. She is currently training with a bodybuilding/hypertrophic approach, as her current goals are mostly aesthetic ones, but she still love pushing for PRs and lifting heavy.

Most of her clients are women who mostly want to be “toned” – to lose fat and build muscle. She also works with new moms, who tend to struggle with body image and safe post-pregnancy workouts.

She hopes that each client will walk out of the gym learning something new each session, whether it’s a new movement or exercise, or a cue that guides them to lift better. She also hopes that her clients feel empowered and strong after each session!

Learn more about Krystle from the Level Blog:
Coach Spotlight: Krystle Theseira
6 Things I Wish I Knew before Starting my Fitness Journey – Krystle Theseira



  • ACE Certified Personal Trainer
  • PTA Global Certified Personal Trainer
  • Agatsu Strength & Speed Specialist
  • Self Osteo-Myofascial Applications (SOMA), Level 1
  • AFPA Pre-Post Natal Fitness Certification
  • Bachelor of Arts Education with Psychology (Ongoing)


Sporting Achievements

  • Represented CHIJ Katong Convent Secondary in Canoeing and Dragonboat at both inter-school and national competitions from 2009-2012
  • Strongman Singapore: Asia Pacific Deadlift Championships 2018 – U62 Women’s category (2nd Place)
  • Singapore Powerlifting Open 2018 – U57 Junior Women’s category (2nd Place)


Press Mentions


Social Media

Testimonials for Krystle Theseira


“Enjoyed the class and Krystle’s instructions were very clear. She’s also attentive watching and correcting our forms and gave some helpful tips and advise so we can easier do the exercises.”


“Krystle is the best!! She explains each movement and exercise so clearly. Would definitely recommend her to my friends!”


“Krystle was very friendly and welcoming! Was a little nervous for my first time but enjoyed myself learning the right form and techniques :)”

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