Meet Your Team 

Crystal Demers

Manager

My passion in life is to help others reach there goals and desires the way health and fitness helped me achieve mine.

Once being 220 lbs., and losing over 70 lbs., I understand the journey and how hard it can be. However, on the flip side, how amazingly rewarding it can be. Hard work truly pays off and I am a firm believer and witness of this. Once seeing the amazing things this life style change has brought to me, I decided to move forth and help others in the same way. It is truly an amazing to watch others succeed in there own desires the way I did through fitness. This is when I decided to pursue my career as a health and wellness coach.

Currently am certified Personal trainer as well as Corrective Exercise specialist through NASM with several years experience behind me. I also am currently pursuing my bachelor’s degree in Exercise Science and also in the process of obtaining my nutrition specialist certificate. I also have a dying passion for MMA, particularly in kick boxing. I look forward to the many years I intend on spending in this industry and helping people reach their desires, day by day and be the very best they can be, regardless of circumstances.

I’m excited to be a part of the Simply fit 4 Women Body for Life Transformation Team and look forward to working with all of the Ladies!!

Maria McManus

Coach/Trainer

I have been active most of my life.  I have a passion and care about people and want to see them lead healthy lifestyles.  Both of these attributes led me to become a personal trainer.  I feel that I can relate to what many clients go through when battling weight loss. When I first joined this industry I lost 30 lbs. and I learned to lead a healthy lifestyle that I could maintain. With good healthy nutrition, strength conditioning, cardiovascular, and the right mind set we can accomplish a lot!!



I am certified with the National Personal Training Institute as well as the National Academy of Sports Medicine (NASM). I also hold a certificate and specialties in Group training with 7+ years experience in the field of training. I look forward to helping you achieve your goals.

Heather McAllister

Coach/Trainer

I was born in England. I moved to America when I was six years old. My parents became citizens a few years later and so did my brother and I. At the age of seventeen I became a United States Marine. I married a few years later and had nine beautiful children. I always enjoyed being active, but after my ninth child I started weight lifting. Weight lifting became a passion and outlet. Since I started lifting weights seven years ago I have successfully accomplished doing a body building show with my sixteen year old son. Fitness is a lifestyle I love! The benefits are rewarding and unending.

Brianna Mahoney

Coach/Trainer

Hi! My name is Brie (like the cheese!). I have been active most of my life, starting when I was 3 years old when I started taking dance lessons. I stuck with dancing for 15+ years. I then discovered the gym and “fitness world” and went on to earn my Exercise Science Degree from Manchester Community College. I fell in love with strength training and the way it made me feel mentally and physically that I wanted to share that feeling with others. I love empowering women and helping them feel strong, both physically and mentally. My #1 goal in this industry is to help women see that they can do anything they put their hearts and minds to. And I truly believe that you should train because you love your body, not because you hate it!