Personal Training Staff

MAC Personal Trainer Kelli Richardson

Kelli Brumbaugh | Fitness industry since 2000
B.S. Human Resource Management, Western Governors University
Master CPT, CSFNS, WLS, PN1, & American Council on Exercise

Over 20 years of personal training and nutrition guidance in hospital and gym settings. Helping guide those with extreme weight loss goals, post-pregnancy, Powerlifting, Bodybuilding training/nutrition prep/Posing, Parkinson's, Cancer Recovery, injury prevention/post-injury, Boxing/Kicking boxing, advanced core isolation techniques, wheelchair movement/weight-loss, advanced accessing/evaluating/implementing training of specific muscle groups, advanced action plans in corrective techniques for body shaping.

Hobbies: Research, lifting, biking, playing cards/games, playing with my children.
Interesting Fact: High School Fun Facts: I was in a champion traveling puppeteer team, did volunteer clown work, and played clarinet for four years.
Favorite type of music: Anything that has solid lyrics with meaning and purpose. 
When not working you will find me: With my children or in the gym.
Worst Habit: I fall asleep while sitting up if I sit still for too long.

MAC Personal Trainer Natalie Greener

Natalie Greener | Fitness industry since 2015
B.S. Kinesiology, Michigan State University
CPT American Council on Exercise

Natalie is a personal trainer who loves working with others and maintaining a healthy lifestyle. Her focus is on strength training for women and beginners who are looking to be strong and healthy. Natalie is an avid weightlifter and obstacle course racing (OCR) competitor, who has participated in numerous races across the country.

Hobbies: Traveling, spending time outdoors, competing in obstacle course races, and spending time with family. 
Interesting fact: I've qualified for Spartan Race North American and Obstacle Course Racing Work Championships two year in a row.
Favorite type of music: Country.
When I'm not working you will me: With my dog, Oliver, either snuggling up on the couch watching a movie/reading or outside for a walk/playing at the park. 
Worst habit: I have a hard time relaxing; I feel like I always need to be doing something or staying busy. 

MAC Personal Trainer Tom Hilker

Tom Hilker | Fitness industry since 2007
B.S. Kinesiology, Michigan State University
CPT American Council on Exercise
XPE® Master Trainer

Tom is passionate about motivating each individual to improve overall quality of life through education in nutrition, goal setting and exercise. With a background in competitive soccer and running, he works with athletes and non-athletes of all ages and fitness levels while focusing on sports-specific training, running, hiking and golfing.

Hobbies: Just about anything that gets me outside.
Interesting Fact: I run out of gas on my motorcycle more than I'd like to admit.
Favorite Music: Classical
When I’m not working you will find me: With my wife and kid.
Worst Habit: I've been counting reps for enough years I have trouble NOT counting repetitious sounds/movements. When I go for a run I get to about 20 before I have to force myself to stop counting my footsteps.

MAC Personal Trainer Beth Homan

Beth Homan | Fitness industry since 1999
B.S. Physical Education & Exercise Science, Michigan State University
CPT American Council on Exercise (2004), ACE Lifestyle and Weight Management (2012), National Academy of Sports Medicine (NASM)

With over 20 years of experience in the fitness industry, my interests in personal and group training have continued to grow and evolve with the goal of helping people achieve an optimal level of fitness. Some of my specialties include healthy aging, strength training, weight management, swimming fitness, and triathlon training. My training centers around consistent exercise, eating well, getting the right amount of rest, and coming up with a fitness plan that an individual actually enjoys doing.

Hobbies include: Working out, multi-sport training for fitness, spending time with my family (and dogs!), and watching basketball.
Interesting Fact: During my competitive years in the sport of triathlon, I won a national championship and competed multiple times in the Hawaii Ironman World Championships.
Favorite Music: A wide range of Playlists!
When I am not at working you will find me: Working out, walking my dogs, going to basketball games to watch my daughter play, or hanging out with family
Worst Habit: Being too much of a creature of habit!

MAC Personal Trainer Justin Johnson

Justin Johnson | Fitness industry since 2012
B.A. Exercise Science, Olivet College
CPT American College of Sports Medicine

Justin is a true student of exercise science. His main focus as a personal trainer is to provide pain-free, functional training using all of the latest knowledge in the field. 

His specialty is ensuring his trainees exercise proper body mechanics, allowing you to get the most out of every exercise without risking injury. He first fell in love with fitness when he personally experienced its physical and mental benefits. His background in exercise science, as well as being a former college wrestler, allows him to work with a wide variety of clients. Justin is passionate about working with clients that are new to fitness and motivated individuals ready to make a change.

Hobbies: Lifting weights, hunting, hiking, eating, and sleeping.
Interesting Fact: I never miss a Joe Rogan Experience podcast.
Favorite type of music: I love everything. My playlists are all over the place.
When I'm not working you will find me: Teaching my son new wrestling moves, cooking, probably sleeping.
Worst Habit: Netflix

MAC Personal Trainer Keri Morrison

Keri Morrison | Fitness industry since 1995
M.S. Kinesiology, Michigan State University
CPT National Academy of Sports Medicine
Internship Coordinator, MSU
LCC Adjunct Faculty Member

Keri has a passion for working with the 50+, post-rehabilitation, weight management and post-pregnancy populations. Keri specializes in proper posture, muscle imbalance, chronic pain and injuries through a combination of flexibility, trigger point therapy and weight training. Keri is an active mother who enjoys basketball, swimming, yoga and mountain biking in her free time.

Hobbies: Cooking, tennis, basketball, biking, skiing, & boating.
Interesting Fact: My college basketball team placed 2nd in the NJCAA Division II National Tournament & my team was recently inducted into the Port Huron Sports Hall of Fame.
Favorite type of music: Anything but country.
When I’m not working you will find me: Cooking
Worst Habit: Coffee

MAC Personal Trainer Lauren Shuff

Lauren Shuff| Fitness industry since 2016
B.A. Exercise Science, Michigan State University
CPT American College of Sports Medicine

Lauren discovered her passion for health and fitness during her 12 years as a competitive figure skater. Being dedicated to a physically and mentally demanding sport has given her the drive and motivation needed to further her career in the fitness industry, allowing her the ability to share her passion with others. She has worked with a wide variety of individuals ranging from elderly patients to student athletes. She looks forward to offering her services and knowledge to help you reach your fitness goals.

Hobbies: Working out, spending time with family.
Interesting Fact: I’m a 2x USFSA Senior Gold Medalist.
Favorite type of music: pop/alternative.
When I'm not working you will find me: Still at the gym working out.
Worst Habit: Spending too much time on my phone.

MAC Personal Trainer Deb Popp

Deb Popp | Fitness industry since 1979
CPT American Council on Exercise
Aerobics & Fitness Association of America  

Deb’s experience ranges from competitive gymnastics to body building. Her personal training background uses those talents and allows her to work with women and men to meet their goals using a variety of techniques. She also applies her personal training skills to her group classes, which include yoga, workout with weights, self-defense for women and others.

Hobbies: Dancing, cooking and travel.
Interesting Fact: I was once part of a halftime performance at a Lions football game for a fundraiser and won a trip to Mackinac Island.
Favorite type of music: Almost anything.
When not working you will find me: With friends and family. 
Worst Habit: I take too long getting ready to go anywhere.