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About Us

At Jiva Fitness (pronounced Jee Va), our focus is on creating an environment where you are guided, encouraged, and challenged, and may even....have fun! If you enjoy your workouts and get sound fitness guidance and support, you will be far more likely to continue and get the results you are looking for. Jiva Fitness is the high support workout experience that will make all the difference.


What is our story?

Coming home... back to Easton after over twenty five years, Heather Stirner Nutting returned to the Karl Stirner Arts Building where she formerly owned and operated The Easton Academy of Dance. Heather and her husband, Mark Nutting, first met in NYC at the Pumping Iron Gym following Heather's return to the States after living in Paris dancing professionally. Having suffered a broken back, Heather was inspired by her rehabilitation process and how fitness training was essential to her recovery. Coincidentally, Mark, was a fitness trainer with a degree in exercise science who came to NYC to pursue a love of theatre and dance. Mark became Heather's husband and fitness mentor. Together they ran the in-house personal trainer school for Town Sports International - (New York Sports Clubs, Boston Sports Clubs, Philadelphia Sports Clubs, and Washington Sports Clubs).

Both are skilled national fitness presenters. Having been in health club management for larger clubs, they have decided to create a fitness solution that focuses on human connection and nurturing support, while still delivering the most current and effective programs available.

People know they should exercise, they know they should eat better, but where should they start?

Jiva Fitness will help you find the answers.

Heather Stirner Nutting

Jiva Fitness Owner, Master Trainer/Instructor

NSCA-CPT, ACE-CPT, AFAA CPT, Post Rehab and Senior Fitness Specialist, etc.

mark hs 12.9.20.png
Mark Nutting

Jiva Fitness Owner, Master Trainer/Instructor

CSCS*D, NSCA-CPT*D, RCPT*E, ACSM HFD, ACSM HFS, USAW Sports Performance Coach, CrossFit Level 1 Instructor, etc...

Heather Nutting has been a personal trainer and group fitness instructor for 22 years and has been a health club manager for 16. A skilled national presenter, she is also a MOSSA™ Group Centergy National Trainer. As a MOSSA™ National Trainer, Heather runs workshops that not only cover material specific to the Group Centergy class, but essential principles of business, marketing, and branding.

In Loving Memory

It is with the deepest sorrow that we announce that Heather passed away after battling lung cancer for almost two years on February 19th 2022. As a non-smoker, athlete, who ate healthfully and had no family history, we were all astounded when she was diagnosed at the age of 57. She kept working out every day that she was able. Her loss is a loss for so many people whose lives she touched and we will miss her every day. Her desire to help people live healthier, more vibrant lives will live on. We, at Jiva, will continue her legacy and offer help and guidance to those in need. 

Mark Nutting brings the expertise of over 43 years of personal training and health club management to the business. Mark has written the book, The Business of Personal Training, for Human Kinetics publishing company. A long-time national presenter, his "Fitness Boot Camps for the Masses" has been a featured presentation at the American College of Sports Medicine's Health and Fitness Summit, National Strength and Conditioning Association's Personal Trainers Conference, and in the 2017 NSCA Japan Conference.

A highly skilled group fitness instructor, Mark Nutting is also an national award-winning personal trainer having won the PFP 2016 Trainer of the Year Legacy Award and the National Strength and Conditioning Association's Personal Trainer of the Year in 2009.

“While I’ve been educated in many areas, what I really do is help people regain lost abilities. Whether they are recovering from injuries, surgery, or if age is robbing them of past capabilities, these are the areas that I specialize in.” 

The Rest of Jiva's Team

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