Heather’s personal training career took off after being asked to be part of a 3 year “IN SHAPE” study with the CDC (Center for Disease Control) in 2006 to explore the correlation between mental and physical health. Heather initially worked with the severely mentally ill population and was inspired by the drive these people had when given an opportunity at life. Heather continued this line of work with Riverbend CMHC in Concord, NH, where they continued the IN SHAPE program. Heather branched off in other parts of the fitness/nutrition world and became a Certified Spinning instructor through Mad Dogg athletes, a BootCamp instructor with F.I.T. training, the Concord YMCA, and keeps up with her CPR, First Aid/AED certification. Heather’s passion is motivating others to bring them to their fullest potential both physically and mentally. Heather has an Associate’s Degree in Business Science, a Bachelor’s in Psychology making it on the Presidents list each year, and a Master’s Degree in Mental Health. Heather is a Wellness Coach, and a Certified Specialist in Fitness Nutrition and has worked with many clients to support/coach/educate their short and long term goals around food and fitness. Heather stays current with the latest fitness/nutrition trends and always seeks additional certifications and knowledge. Heather has always wanted to open her own facility and could not be happier as a Co-owner of Core Dynamix in the supportive, motivated and extremely friendly town of Alton. Heather strongly believes in the mind/body connection and her greatest reward is another’s success!

In 2019, Heather started her own Life Coaching/Consulting company called Fearlessly Forward, LLC. Her goal is to help even more people who are struggling in many ways. Finding a new outlook on life through a healthier mind, body and spirit. Then in 2022, Heather started H3: Health, Healing and Homeostasis – a facility dedicated to helping people recover from illness, injuries and live a better life homeopathically.  Both of these businesses are located in Wolfeboro, New Hampshire.


Nationally Accredited through NCSF

Certified Spinning Instructor through Mad Dogg Athletes

Wellness Coach

BOSU Certified through ACSM

First Aid/CPR/AED through American Red Cross

– ACSM – American College of Sports Medicine

– ISSA – International Sports Science Association

-IdeaFit – Health and Fitness Association

– AMHCAA- American Mental Health Counseling Association

– ATSA – Associations for the treatment of sexual abusers

– Certified in Trauma Focused Cognitive Behavioral Therapy

– SAMHSA – The substance abuse and mental health service administration



Jeremy got into the fitness field because of his simple want to help people change lives – whether that means losing weight, gaining strength or just improving self-esteem. Growing up an athlete, he was always interested in how the athletes would train for their sports. Being raised in a small town in Vermont did not leave many avenues to try out this training. Poor eating habits led him to become morbidly obese as a teenager while still playing sports. It wasn’t until his early 20’s that he decided to make a change in his life and try to get in shape. Through dedication and a commitment to himself he was able to lose over 100 lbs, and the journey was started. The feeling of losing the weight and gaining self confidence drove him to want to help others experience this feeling. 

After this life-change Jeremy decided to enroll at Castleton State University in Vermont, to get his degree in Exercise Science. While at Castleton he was a member of the Basketball program for all 4 years there. He left Castleton as the leading rebounder in team history and one of the leading scorers while being voted team MVP 2 years. In October of 2018, he was inducted in the Castleton State University Athletic Hall of Fame for is accomplishments.

After graduating with his degree he started gaining experience doing therapy work in the Nursing Home setting while beginning his personal training career on a part time basis. Soon training would be his full time job. After 5 plus years of training all types of clientele, it was time to step out and created Core Dynamix with Heather. The idea was to create a place where people could come join them on their fitness journey. Core has a developed into a great community of people wanting to create change in their lives.

Jeremy is passionate about simply helping people to become a better version of themselves, however they define it. 


Bachelor of Science with a focus on Exercise Science 

American Council on Exercise Certified Personal Trainer

Certified Underground Strength Coach

Certified in CPR/ First Aid / AED



Duke is our security guard, snack tester and attention seeker. He will be there to greet you when you enter the gym (unless he’s sleeping) and will always be there when he needs a good belly rub and when you need a rest break. 


Duke is our 11 year old Australian Shepard & Black Lab mix. He is really good at getting attention, snacks and making sure to get what he wants.


Cutlas Greeley


Cutlas grew up in Alton, New Hampshire playing basketball, soccer, and track. He was always tall and athletic but began realizing he lacked a lot of strength compared to other athletes.He started training once a week at Core Dynamix and really enjoyed it. After training for several months he realized he was out performing a lot of other athletes that he was playing against. So he began to train more, and then more.In high school basketball Cutlas was voted MVP and selected for the “granite state games” team, playing among the top athletes in the state.For two years during high school Cutlas interned at Core Dynamix and got first-hand experience working with clients and programming workouts.After graduating high school Cutlas enlisted in the United States Air Force for four years and served as squadron training leader, conducting physical fitness tests and helping military personel make healthier exercise and diet choices.Upon finishing his enlistment in the Air Force, Cutlas completed his NASM physical trainer certification. And began training clients both one on one and in a group class setting at Core Dynamix.Sports is the reason Cutlas started training, and that’s why he specializes in working with middle and highschool athletes trying to be better come game time, but he also enjoys training clients of all ages and fitness levels.Credentials:NASM Certified Personal Trainer NASM Certified Nutrition Coach