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Operating out of PEX Health and Fitness in Medfield, MA, I work one-on-one with clients to identify and achieve their health and fitness goals. I specialize in strength training, metabolic conditioning, pregnancy and postpartum exercise, injury rehabilitation, body image support, and lifestyle coaching.

The most challenging part of creating new habits is getting started. All it takes is a click below to contact me to schedule your first session. I promise, you won't regret it.



Jennifer Hart is a great trainer. She has enabled me to overcome my back pain through strengthening. I am very happy with her attention to my specific needs and the way she is pushing me ahead to levels I actually did not think I could attain. I have plenty more work to do, but it's encouraging to see I can keep improving with the right training support.

Carol H.

Jennifer is an excellent trainer. She motivates me to push past my perceived limits with encouragement and support. Jennifer places a high priority on correct form and building an individualized exercise program.   While working with her, I have quickly gained muscle mass and lost body fat, becoming stronger and healthier than I have been in a long time.

Stephanie W.

My husband and I love doing partner training sessions with Jennifer. She makes each session fun and challenging. She does an excellent job designing workouts that are appropriate for both of us even though we have different strengths and weaknesses. She loves to use friendly competition to help push us to our limits, which makes both our workout and our experience better. Before doing partner training, I worked out with Jennifer by myself, and I wouldn't hesitate to recommend her for either type of training!

Rachel E.

Jennifer has so much passion for what she does and it shows.  I was nervous and intimidated by weight training before I began working with Jennifer, but now I am hooked!  The blend of mobility, weights and cardio is perfect,  and she customizes programs specific to my needs and goals.  I am already seeing improvement, and I feel so much stronger and more confident.

Jennifer B.


PEX Health and Fitness
Medfield, MA

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