Meet the Coaches

When you workout with us at TNB you will have the awesome experience of working with multiple coaches during your workouts. It’s one of the things that makes our semi private personalized training model so awesome.  Each of our coaches has a different background and years of experience that will help take your workout and your journey with us to a whole new level.  

 
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Tash Weddle

Also the CEO of The New Beginnings Center, Tash holds the distinction of Master Strength Coach — the highest honor that can be achieved in the profession from the Collegiate Strength and Conditioning Association. She has held the position of strength & conditioning coach at Vanderbilt University, Purdue University, Kent State University and The University of Tennessee. Tash has personally coached over 1,000 clients across a range of sports, ages and abilities and guided them all towards their full potential.

Tash is a dedicated advocate for women and their abilities to push beyond stereotypes, self-doubts and self-imposed limits. She knows that health and fitness can be the very foundation to new beginnings and life transformations.  

Tash's certifications:

  • CSCS (Certified Strength & Conditioning Specialist, NSCA)

  • MSCC (Master Strength & Conditioning Coach, CSCCa)

  • SFL (Strong First Barbell Instructor)

  • SFB (Strong First Body Weight Instructor)

  • OS (Original Strength Instructor)

  • FMS Level 2 (Functional Movement Systems)

  • PN (Precision Nutrition)


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Aaron Diehl

Aaron's passion for health and wellness began as an athlete, then transferred to training in 2015. After suffering multiple knee injuries and eventual surgery, his focus from athletics turned into an education in personal training, life and wellness coaching, along with a Degree in Exercise Science and Kinesiology from Bryan University. Since then, Aaron has been sharing his experiences and love of health and wellness; coaching other to become the best version of themselves. As a TNB-Fitness team member, Aaron strives to bring commitment, focus, and passion to his clients. His personal fitness hobbies include soccer, adult softball leagues, ultimate frisbee, functional weight training, various types of athletic training, nutrition education, and continual education in life and wellness. 

Aaron's Certifications: 

  • CPT (Certified Personal Training, NASM)

  • Senior Specialization (NASM)

  • Life and Wellness Coaching (American Academy of Health and Fitness)

  • Heat and Concussion Prevention (NFHS)

  • Youth Specialization (NASM)


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Karen Gillingham

Karen is the Program Director for The New Beginnings Center has been a lifelong fitness enthusiast. Team sports, running, weight training and exercise classes ignited her passion for understanding how our bodies move and perform. She’s been an ACE Certified Personal Trainer since 2010 and owned a fitness studio in Dayton, Ohio for 5 years before relocating to Nashville. Karen is passionate about helping women establish and maintain a healthy, balanced lifestyle through exercise and nutrition. She loves to cook and experiment with new recipes. She loves being outdoors, hiking, walking her dogs and being in or on the water when the weather is warm! In Karen’s pre-coaching life, she worked in development for an education foundation. She is excited to bring her former work experience and love of helping women become the best versions of themselves to New Beginnings!


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Catie Metcalf

Catie started dancing ballet at a very young age, played basketball as a teenager and fell in love with working out in college, where she put her two passions together, movement and people. These passions led her to gain her B.S. in Exercise Science from Kennesaw State University in Georgia and become a Licensed Massage Therapist. Catie’s goal for clients at TNB-Fitness is to help them feel and function their best and strive for progress over perfection every day. 

Catie’s Certifications

- NASM Certified Personal Trainer 
- AFAA Group Exercise Instructor 
- Balanced Body Pilates Mat 1 Certification 


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Melinda Sewak

Melinda is a Nashville-based actor, singer, and personal trainer. 

Melinda was raised by Haitian immigrant parents in Gaithersburg, Maryland. She attended Yale University, where she received a Bachelor of Arts in Theater Studies.

The day after she graduated she started fire academy, working as a firefighter and research coordinator in Maryland and DC. After a year, she began medical school at Meharry Medical College. She completed two years of instruction then two years of critical care research at Vanderbilt University before realizing she was more excited about healing through fitness and storytelling than medicine. 

Melinda is certified by the National Academy of Sports Medicine and has completed a 3-month internship at TNB-Fitness in the fall of 2018.


 
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 Ashley Bartow

Ashley was born and raised in Michigan, where her love for sports and being outdoors took up most of Ashley’s time. She attended Taylor University and the University of Hawaii at Manoa to receive a bachelors in Exercise Science. Following graduation in 2017, Ashley completed an internship at Deep Relief // Peak Performance in Maui, working with athletes from the novice to Olympic levels. She moved back to Michigan in 2018 and teamed up with Arkfeld Advanced Chiropractic to create a rehabilitation and sports performance program for athletes in the community. Ashley’s passion for health and fitness became more apparent after living in Hawaii and trying to become a better surfer! She became much more aware of how my diet and training was affecting the way that she surfed, “My love for training grew even more after spending time in a refugee camp in Greece, playing soccer with kids residing there. I discovered that fitness, whether it be in the gym, on the field, in the clinic, or inside of a refugee camp, can serve as an outlet that not only encourages a healthy lifestyle, but also has the ability to impact people in every aspect of their lives”. This is something that Ashley truly loves to do and is excited for this next step in Nashville.

Ashley is certified by the National Academy of Sports Medicine, as well as Speed and Agility and Resistance Band Training through the International Youth Conditioning Association