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Personal Training &
Wellness Coaching

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Hi, I'm Kellyn Jason! I am a certified personal trainer, Precision Nutrition Level 1 Coach, and Pregnancy and Postpartum Corrective Exercise Specialist. I also hold a master’s degree (MS) in Exercise Health Science and am a full time Research Technician at Northeastern. I’ll be beginning a PhD in Human Movement and Rehab Sciences in the fall of ’24.


With this exciting new chapter right around the corner, I am no longer able to train consistently. Luckily, I am a part of Massachusetts Coaching Connection and can put you in touch with some great trainers! Fill out the form below if you are interested in learning more or head to- !

Client Testimonials


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Kellyn is my “life saver”! Two years ago, I broke my ankle at the age of 66, had surgery, and thought I would never get back to an active life. Then I met Kellyn. She worked beyond what I would have expected from a trainer. Following two months in physical therapy Kellyn became my personal trainer. She helped me rebuild my strength, balance and confidence and gave me the encouragement that I needed to heal.
Two years later, I am still working out with Kellyn. She supports me both physically and emotionally. Her supportive nature comes through time and again. She has helped me to maintain a strong and healthy body. I have worked out for many years, but as I get older and start to feel my age, Kellyn’s gentle push has kept me challenging myself to do more.
Kellyn has an extensive knowledge base. I am still a work in progress, but with her help I am making continual strides in my strength, endurance, mindfulness, and nutrition. I have great trust in her and have no reservations about referring her to others.



Get in Touch Today!

I'm sorry I missed you! I am no longer training clients.

If you are interested in learning more about other trainers in Massachusetts Coaching Connection, please fill out the form below. Please include the following information:

  • The goals you would like to accomplish working with a trainer

  • Details regarding any injuries or illnesses you may have

  • Your exercise history and current routine

  • Your session availability - weekly meeting times that work for you

After filling out and submitting this form, you can expect someone to contact you back within one week (7 calendar days)

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