Our Team

We Are All Passionate About Your Success! Please Meet Our Team.


Jenna Nelson, Owner and Personal Trainer

Jenna was destined to be in the health and fitness field. Searching for a way to heal her own chronic back pain since she was 13 years old, it only makes sense that she would now spend my days helping others heal their pain. She has met with some of the top surgeons in Boston, worked with some great physical therapists, master practitioners who focus on posture and chronic pain, holistic nutritionists, and from them all she has developed her own niche in the fitness industry.

Jenna's passion is cultivating symmetry and balance in the body. Correcting posture and improving movement patterns. Creating a stable and solid foundation gives us the freedom to focus on Strength. A clean diet is non-negotiable if you want to look and feel your best. Jenna is a graduate of UMASS-Amherst, and currently holds the level 4 Certification from Perfect Postures, the level 2 Nutrition and Lifestyle Coaching as well as CHEK Practitioner level 1 from the CHEK Institute. Jenna is FMS Level 1 Certified, a Level 1 Certified Metabolic Typing Advisor, OPTI Level-1 Certified, and lastly, she is a Certified StrongFirst Kettlebell Instructor.

Outside of Milestone Fitness Jenna's passions include: spending time with he husband, Dave, and sons, Henry and Luke, cooking , hiking, anything outdoors, power naps, road races and triathlons, buying sneakers, and watching Friends reruns.

Jenna can’t imagine doing anything else with her life. "Milestone Fitness has become such a large part of my life, and I will continue to do everything in my power to help it grow." Jenna believes so much in what we do, and what we practice, that its impossible to not be overwhelmed with happiness every time she goes to work.


Dave Nelson, Personal Trainer

Dave's journey in fitness started many years ago when his 3 brothers and him would lift in their family's basement. This passion for thriving through fitness carried itself to high school and college, where Dave served as the captain for both the Xaverian Brothers High School and Lafayette College football teams, helping lead the former to a 10-win season and the latter to back-to-back championships. Dave also competed in powerlifting, where he won the Massachusetts State meet in the 220LB weight class, as well as garnering best overall lifter. Dave's athletic pursuits garnered him many accolades, but none more significant than being given the ECAC Award of Valor for returning to the field his senior year of college after a near-fatal accident. Dave spent 10-years in technology sales before coming on full-time, with the most recent years helping Silicon Valley companies get off the ground in New England and Canada. Dave is now passionately living his dream of helping people of all types thrive and reach milestones they never thought imaginable. He deeply believes excellence and progress are only gained through the committed process itself, not in some outcome far into the future. It is the daily practice of discipline, consistency, effort and desire to become your very best.

Dave is the proud husband of Jenna and dad of Henry and Luke. He holds a B.A. from Lafayette College, and is a NSCA-CPT, iNLP Master Practitioner, and Certified Mental Strength Coach.

Dave enjoys athletic pursuits in all forms from hiking to powerlifiting to endurance racing. Three big and audacious personal life goals Dave has are to complete the Hawaiian Ironman, climb Mt. Kilimanjaro, deadlift 600-pounds, and visit Buddhist temples in Thailand.


Kara Simpson, Personal Trainer and Lifestyle Coach

Kara comes to us from Bridgewater State where she earned a Bachelor’s Degree in Exercise Science with a minor in Health Promotion and soon after got her Certification in Personal Training through ACSM. She recently became an ACE Certified Health Coach as well as a Certified StrongFirst Barbell Instructor.

Kara was a Tri-Athlete in high school and has enjoyed finding ways to stay fit. She has experience training clients within the community as well as at corporate levels. She loves nutrition and lifestyle management and hopes to continue gaining knowledge in those areas as well as the ever changing fitness industry. She loves the feeling she gets after a workout and hopes to instill that desire onto her clients by giving them challenging and fun workouts. Clients whom take time out of their busy day to make a change and improve their lives give Kara motivation and desire to continue working in this field.

Kara hopes to be a role model to her clients and has enjoyed learning the many aspects of health and wellness. When she’s not at Milestone Fitness, Kara likes to spend time with her husband and two sons, work out, teach spin class, spend time with her big family, read about health and wellness, and experiment in the kitchen.

A 'huge' goal for Kara would be to deadlift 300-pounds and bench 150-pounds. She is well on her way!


Stacy Klinkhamer, Personal Trainer

Stacy is a lifelong athlete. She has played softball, volleyball, basketball and track. During her time as a student athlete, Stacy has worked with multiple Strength and Conditioning coaches. Working with these coaches had improved Stacy’s athletic performance drastically, thus igniting her appreciation for fitness. Although she began her professional career as a school teacher, Stacy has never lost her love for training and improving her physical self. Stacy left her teaching career in order to pursue her true passion in health and fitness and became an AFAA Certified Personal Trainer. 


  • AFAA CPT: Certified Personal Trainer from the Aerobics and Fitness Association of America

  • FMS Level I and II: Functional Movement Specialist, Screening and Corrective Specialist

  • SFG I: StrongFirst Girya Certified Kettlebell Instructor

  • TRX Suspension Trainer Qualification

  • AED and CPR Certified


Sam Spatola, Personal Trainer

Sam knew very early on that she wanted to be involved in health and fitness. She was a competitive cheerleader since she was 7 years old and all through college. Sam graduated from Bridgewater State University with a degree in Psychology and Behavior Analysis. She finds that the background knowledge of human behavior is extremely beneficial and important to have as a personal trainer!

Shortly after undergoing a surgical procedure to repair a torn labrum in her hip, Sam received her personal training certification in 2014 with the National Academy of Sports Medicine (NASM). Working with physical therapists and personal trainers inspired her to take the leap into a personal training career. Not only did she want to continue enjoying the benefits that fitness has to offer, but she wanted to be able to offer those benefits to others! “I just want to help people. I do this job to help people.” She finds being a personal trainer to be the most rewarding role that she has taken on and wants to continue to pursue further education in the fitness field!

Sam LOVES to learn and just wants to be the best personal trainer she can be. With plans to sit for her Certified Strength and Conditioning Specialist (CSCS) exam in the coming months, she is hopeful to add that to her area of expertise. “This industry is ever-changing. You can never stop learning and that’s the beauty of it.”


Kristi Geraghty, Operations Manager

Kristi knows and understands how we operate and is able to bring her great experience in finance and office management to keep us organized as well as to provide that great customer focus. She loves to combine work with learning about new heathy exercise techniques and nutrition ideas, and shares the same dedication as all of us to the growth and success of Milestone Fitness.

Little did Kristi know when she became a member at Milestone Fitness (formerly The Training Fix) that she would eventually become a key part of our Milestone team; but that's exactly what happened and we are both much better off as a result.

Kristi is responsible for all day to day operational tasks and is particularly focused on ensuring that we offer great customer service and that all members feel special.

The body achieves what the mind believes.
— Milestone Fitness

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