Fitness & Nutrition

Strong Body, Inspired Mind, Balanced Life

Kerry A. McCrea, MS BCBA, LABA, CPT 
Board Certified and Licensed Behavior Analyst, Certified Personal Trainer 
 Kerry McCrea is a Certified Personal Trainer through the American Council on Exercise. She has her master’s degree in Behavior Analysis and been certified as a Behavior Analyst (BCBA) for the past 3 years. Kerry specializes in helping her clients achieve weight loss, health and fitness goals by utilizing behavior strategies along with effective fitness programming. Kerry can help you to understand the reasons why you engage in unhealthy behavior, design programing to assist you in engaging in positive behaviors, and provide replacement behaviors to help you meet your fitness goals. Please visit her at Core Fitness and Nutrition where she can tailor a plan designed to help you achieve your own unique fitness goals! 

Michele Arthur
Spin Instructor
 Michele has been a certified spin instructor for the past three years. Her fitness hobbies include running and cycling. Michele is currently in training for her second marathon after completing her first one this past May. Michele also loves to compete in du & triathlons and half marathons. Michele has three children and lives here in Upton.

Lara Wahl
Yoga Instructor
 Lara Wahl has practiced various styles of yoga since 1999 and has earned her certification at theSivanada Forest Academy in Kerela, India in 2005. After years of practicing and being fascinated by yoga, Back home, she decided she wanted to learn yoga from the source. Her experiences there were profound. While she was there she studied Ashtanga yoga Mysore, India as well. She studied Vinyasa yoga in Cambridge, MA at the Baron Baptiste Yoga Center as well as Kundalini Yoga at the Ashram in Millis, MA. She's taught for 15 years and loves the gift of healing and empowerment yoga brings in all of the various styles.


Her's is a holistic approach of integrating postures with proper breathing techniques, alignment, and meditation all into one fluid practice that is sure to help you regain your focus, center, and serenity while empowering and strengthening your body and mind. She lives in Upton, MA with her husband and 2 daughters. Lara is excited for this new chapter, to be joining the core fitness family.

The longer you wait, the further you’re getting from your goal. Those calories aren't burning themselves. Make the commitment to be healthy. We'll be your partner every step (or plank or squat thrust) of the way. Contact us for a free tour!

Meet The Trainers

A Passion for Fitness.
Rick Nelson
​Cycling Instructor

​Rick Nelson has been instructing cycling classes for the past 18 years and at last count, has taught over 3000 classes.  He brings a ton of enthusiasm to every class he teaches and is on a mission to make his clients enjoy themselves while he pushes them to reach their personal goals.  He doesn't mind clients "hating" him DURING class as long as they say "thank you and see you next week" with a smile on their faces as they leave.  

​On a personal note he races mountain bikes competitively and enjoys hammering both the trails and roads as well as enjoying competitive kayaking.  

START TRAINING TODAY

The longer you wait, the further you’re getting from your goal. Those calories aren't burning themselves. Make the commitment to be healthy. We'll be your partner every step (or plank or squat thrust) of the way. Contact us for a free tour!

Sarah Bibeau
Owner With over fourteen years of experience training private clients and teaching Pilates and Group Training, Sarah takes great pride in helping people of all ages and fitness levels achieve their weight loss, health and fitness goals.

​Sarah is committed to obtaining and maintaining the best possible training and certifications, and staying on top of the latest nutrition and fitness trends and research. She shares her knowledge and passion for fitness with her clients and students to provide high quality, effective workouts and nutritional planning, all delivered with a level of personalization that cannot be matched by large fitness facilities.

Sarah holds several certifications including:

• ACE Certified Advanced Health and Fitness Specialist

• ACE Certified Personal Trainer

• ACE Lifestyle and Weight Management Consultant

• ACE Group Fitness instructor

• ACE Pre and Post Natal Specialty

• STOTT Pilates Instructor

• IFTA Indoor Cycling

• ISMA Weight Management consultant

• ISMA Sports Nutrition Consultant

• ISMA Mind Body/ Holistic

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Eric Zisk

Personal Trainer


Eric has worked in the fitness industry all his professional career. Eric is a personal trainer, group exercise instructor, and manager of corporate wellness programs. He has been teaching spin for over 6 years and enjoys mixing up his classes to give you a fun and challenging workout! His favorite types of exercise include balance training, road cycling, running, and swimming.



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