Sam Mugavero, Ph. D. – Owner/Coach


A two-sport athlete in college, Sam continued to foster his passion for fitness while working on his doctorate at the University of South Carolina. After completing his degree in 2007, he moved to Atlanta with his wife and spent 5 years teaching science and coaching tennis while spending his early mornings and evenings instructing fitness and strength training. While a teacher, Sam started an employee fitness program for faculty and staff at Woodward Academy and simultaneously formed the Smugs Fitness Outdoor Fitness Program in Barrett Park (College Park, GA). 

Sam has since opened the Smugs Fitness Lab in the Historic Kirkwood Neighborhood and works with individuals and small groups to achieve their health and fitness goals. Sam's coaching provides people with the tools they need to move, feel and look their best! In addition to personal training and small groups, Sam works with companies large and small to help develop and maintain corporate wellness programs for their employees.

When not in the Smugs Fitness Lab, Sam drinks coffee (a lot of coffee) and spends time with his wife (Kristy) and daughters (Lilly and Clara).

StrongFirst, SFG2; USA Weightlifting, Level 1; CPR/AED

2016 Hylete FitPro of the Year - Finalist

Kory Muehlhauser, General Manager/Coach


Kory is an American College of Sports Medicine Certified Personal Trainer.  Before pursing a career in health and fitness, Kory worked in various finance roles at several large Atlanta companies while completing her MBA. She is also a mother of two and understands the demands of family and career and the need to fit exercise and movement into a busy schedule. In addition to her ACSM certification, Kory maintains the following certifications:

StrongFirst, SFG1 / SFL; USA Powerlifting, Club Coach; FMSC; ACSM-CPT; CPR/AED

JoAnna Rogers, Coach


Having never lifted a weight in her life, JoAnna walked into a kettlebell class in early 2016 and was immediately captivated by the technical movements and efficient workout. She spent the next year studying kettlebell technique, all the while building strength and confidence in herself. In early 2017, she completed the StrongFirst kettlebell certification. As a coach, JoAnna now helps others find the same confidence and empowerment that she has found through kettlebells and strength training.

Outside of the gym, you will find JoAnna spending time with her husband and two dogs, most likely on the front porch of their home in Kirkwood.

StrongFirst, SFG1; CPR/AED

David Cho, DPT - Coach

Since the tender age of 18, David ran the gamut from overweight smoker to combating anorexia nervosa before finally becoming a true student of strength. His undergraduate degree is Exercise Science and has gone on to earn a Doctorate in Physical Therapy. Throughout his education, David has helped people from both the clinical and athletic performance fields achieve a myriad of goals, i.e. walking for the first time after a stroke, breaking a world record in the squat. 

Outside the lab (gym), David enjoys coffee and eating food (tremendous amounts of both) with his wife and their two dogs. He is also a huge Star Wars fanatic and will occasionally play video games too much.


StrongFirst, SFG1; CSCS; Doctor of Physical Therapy; CPR/AED

Amy Underwood, Coach

Amy is a middle school science teacher who loves using her "free time" to work with individuals seeking to improve their health. Amy coaches the Faculty and Staff Boot Camp Program at Woodward Academy, the Barrett Park Outdoor Fitness Program, and works with individuals through Personal Training.

Amy is the mother of two boys, Kole and Pryor and the wife of Luke Underwood. When Amy isn't coaching, she loves a good cup of coffee and some time in the lab to pick up heavy things!