RSC Personal Trainers

Personal trainers help their clients by:

  • Assessing the client’s fitness level
  • Demonstrating the safe, correct way to use equipment like the Bosu, hand weights and exercise machines
  • Tailoring an exercise program to the client’s needs
  • Encouraging clients to adopt sound nutritional practices
  • Coaching and motivating clients
  • Providing one-on-one feedback and problem-solving 


Angela Waddington

Angela decided to begin her career in the health and fitness industry as a personal trainer in 2001. She wanted to improve people's quality of life by increasing their strength, balance, cardio fitness and flexibility.

Her experience includes training a diverse population of youth through older adults and strives to come up with innovative workouts that are challenging yet never boring. Angela also teaches boot camp, cycle boot camp and stays busy with her three young children.

Certifications: ACSM Certified Health Fitness Specialist

Brad Gieske

Brad's biography is on its way!


Beth Thomas

Instructor Beth Thomas has a strong background in fitness. Her career began in 1996 at the University Fitness Center in Wisconsin, where she was the Group Exercise Director and an instructor for a variety of fitness classes. 

After graduating with a degree in Physical Education with a minor in coaching, she became a certified strength and conditioning specialist. She continued to teach and train at several health clubs, and competed in many triathlons, both sprint and Olympic distances.

In 2008, Beth moved to the St. Louis area and started at the RSC, where she is now an instructor. Beth’s background in teaching and competing gives her the experience and insight needed to develop safe, effective and fun workouts that are personalized for each client. You’ll also find her leading Dynamic Training, Cardio Dance Fitness and Boot Camp classes. When she is not training or working out, Beth enjoys spending time with her husband and four children.

Certifications: ACE Group Fitness Instructor and NASM Certified Personal Trainer

Kevin Whitehead

After spending more than 15 years in Sales and Management I have decided to follow my passion for health and fitness by becoming a Certified Personal Trainer with the American Council On Exercise. Having overcome my own personal struggles with weight loss I understand how difficult it is for people to balance a busy work and personal life while maintaining their health and fitness.

As a resident of O'fallon for more than ten years I am truly excited about the opportunity to work at The Renaud Spirit Center. I look forward to meeting each of you and your families to learn more about your health and fitness goals and how I can help you achieve them.

Certifications: ACE-CPT


Natalie Onuoha

Natalie is a highly self-motivated athlete with a unique ability to encourage her clients to push themselves above and beyond their "comfort level." Her considerable experience in endurance training, weight training, and core and stability training has translated into success with many clients

Throughout her life, Natalie has enthusiastically participated in physical fitness. She fondly recalls competing in a 5K race with her family when she was eight years old.

As captain of the rugby team at the US Air Force Academy, she led the team to the national championship competition. Currently, she leads her "team" of four children in a daily homeschooling adventure. If Natalie is not at the gym in the early morning hours, she's probably out running.

"I love to run," she says. "It's an efficient way to burn calories and relieve stress, and requires no coordination and only a pair of shoes." Although her favorite race distance is the half-marathon, she's run four marathons, and she's making plans to add to that number.

Certifications: Professional member of AFAA and a nationally-certified personal trainer and group exercise instructor


Randy Putzler

Personal Trainer Randy Putzler specializes in mature adult and senior fitness, weight loss, and posture/balance/movement and corrective exercise. He’s worked, lectured and conducted beginning and advanced senior group exercise sessions throughout St. Charles County. He’s also been featured in the Health section of the St. Louis Post-Dispatch.

Randy is a senior, himself. A retired hospital administrator, Randy lost more than 90 pounds which he’s kept off for nearly 15 years, managing that and some medical problems with a sensible diet and enjoyable exercise.

Certifications: Certified by the National Academy of Sports Medicine as a Personal Trainer, Senior Fitness Specialist, and Golf and Mixed Martial Arts Fitness Specialist; a certified Posture Specialist with the National Posture Institute; and a Star 3 Certified Spinning Instructor with certificates in TRX Suspension Training and Stability Ball Training