Our Instructors of Strength Flex Gymnastics

Valentina Atanasova, owner and founder of Strength Flex Gymnastics.

Valentina Atanasova

Head Coach

Valentina brings over 20 years of gymnastics experience. Being involved in gymnastics since the age of 6 as a gymnast, judge, and coach, Valentina has been able to develop unique training systems to help develop gymnasts of all ages and skill levels.

  • Head Coach of StrengthFlex Athletics
  • Former Bulgarian Artistic Gymnast
  • Former Performer: Sea World, Universal Studios, Disney
  • Bachelor Degree in Gymnastics and Physical Education
  • USA Gymnastics Member (USAG) and AAU Member
  • Gymnastics Judge: USAG Level 10, NSAA
  • 10+ years of coaching experience

Misty Ta

 Instructor

Misty has over 6 years of gymnastics experience and a diverse athletic background. She competed in both gymnastics and volleyball for over 4 years, bringing a well-rounded approach to coaching.

  • Assistant Coach at StrengthFlex Athletics
  • Competitive gymnast for over 6 years
  • Coached multiple sports
Micah

Micah Castilleja

Instructor

Micah has been involved in gymnastics and tumbling since the age of 10, bringing over a decade of experience and passion to every class. With 4 years of competitive and high school cheerleading under his belt, he understands the discipline, teamwork, and performance it takes to succeed.

For the past 6 years, he has worked as an assistant cheer coach and tumbling instructor, helping young athletes build strong foundations in technique, strength, and confidence. He is also a dedicated StrengthFlex instructor with over 4 years of experience, known for motivating students and helping them reach new physical and mental levels.

His upbeat energy, technical knowledge, and care for each athlete make him an essential part of the coaching team.

Coming Soon

Naomi Yeoh

 Instructor

Naomi is a dedicated volleyball athlete with over seven years of playing experience, including six years competing at a high level. She is recognized for her leadership both on and off the court, consistently demonstrating passion, discipline, and a strong work ethic in every aspect of the game.

With two years of coaching experience, Naomi is committed to developing athletes’ technical skills, fostering teamwork, and cultivating a genuine love for the sport. She has been a valued member of StrengthFlex Athletics for the past year, contributing her expertise and positive influence to our athletes and community.

Naomi continues to grow as both a coach and competitor, always striving to elevate her performance and positively impact those around her.

Coming Soon

Laydei Sandres

 Gymnastics instructor

Laydei Sandres is a dedicated and passionate coach who leads our Team Girls program at StrengthFlex Athletics with focus, structure, and heart. She is committed to helping competitive athletes refine their technique, build strength, and grow in confidence both on and off the floor.

Laydei brings valuable experience working with children of all abilities, including athletes with special needs. Her patient, supportive, and individualized coaching style ensures that every gymnast feels seen, understood, and capable of progress. She believes in creating a positive training environment where athletes feel safe to challenge themselves and reach their full potential.

Her leadership with the team girls reflects her strong attention to detail, athlete development, and long-term growth.

• Team Girls Coach – StrengthFlex Athletics
• Experience working with children with special needs
• Focused on technical development, confidence & safe progression
• Committed to inclusive and supportive coaching