Kellyn Jason Wellness | Personal Training | Exercise Physiology

Clinical Exercise Physiology
&
Wellness Coaching

Hi! I'm Kellyn Jason, a clinical exercise physiologist (M.S.), PhD candidate in Interdisciplinary Clinical Rehabilitation Sciences at Northeastern University, and personal trainer with 8.5 years of experience. My journey into health and wellness started with my own weight loss transformation, where I experienced firsthand the physical and mental health benefits of getting active and healthy. That experience is what drives my passion for sharing those benefits with others, and it's what led me to found Kellyn Jason Wellness in 2021 and pursue graduate research on the role of exercise in brain and mental health.

Today I specialize in working with adults who want evidence-based training grounded in real physiology, not generic programming. My PhD research at Northeastern focuses on how different types of exercise affect mental health symptoms and brain function, and I bring that science directly into every client's program. In addition to personal training, I offer clinical assessments including HRV monitoring, body composition analysis, blood pressure screening, and individualized exercise prescription tailored to your health history and goals.

I take on a limited number of new clients each quarter to ensure every person receives the depth of attention they deserve. Spots are limited, so if you're interested in working together, please fill out the form below and I'll be in touch to schedule a brief call.

If you are a certified coach in the health and wellness space looking for mentorship, please send an email to kjwellnessllc@gmail.com.

How I Work With You

Initial Health and Movement Assessment

1-on-1 Training

Small Group Classes

Health history, VO2 assessment, body composition analysis, resting blood pressure and heart rate, and baseline biomechanics assessment. With this information, I create a personalized prescription for you. 90 minutes.

Progress Monitoring

Quarterly circumference measurements, body composition analysis, VO2 assessment, and recovery, readiness and stress load check-in.

Evidence-based programming guided by your physiology, health history, and goals. For anyone at any fitness level. Includes quarterly circumference measurements, body composition analysis, VO2 assessment, and recovery, readiness and stress load check-in. 60 minutes/ week.

Specialty Subscriptions

Ready to go 12-week programs including Exercise for Anxiety and Depression, Strength and Brain Health for Older Adults, Returning to Fitness Postpartum and Strength Training for Potters.

Structured group sessions in a supportive environment. Three sessions per month, 60 minutes each. Great for anyone who wants structured in-person sessions at a lower price point. Limited spots.

Remote Programming

A monthly updated training program delivered to you. No in-person sessions required. Ideal for past clients, non-local clients, or anyone who wants structured, expert guidance at a flexible price point. 12-week training cycles with 5 workouts each week.

Client Testimonials

OUR NEW PLACE

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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.

-RK