Meet Our Pros


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Shannon Immer has been gracing the fitness industry for over a decade. Her love of children, running, and her family make Shannon an exceptional leader at inFIT. Shannon is dedicated to bringing you excellence client service and the best fitness experience available. Next time you're in the club, say hi to Shannon, ask her a question, and you'll soon become fast friends-- and see why she is one of the world-class directors at inFIT.
Mark is ready to help you with your training needs. “I believe that whatever goals you have, it is attainable. My goal as a Personal Trainer is to help you along the way and provide you with positive support, encouragement, and the proper workouts to help you attain your goal(s).” 
Certifications Include:
  • Personal Trainer through the National Exercise Trainers Association
  • Plyometric Training through the International Fitness Professionals Association
  • Kettlebell & Spin certified with National Exercise Trainers Association
  • TRX Certified
  • CPR & AED Certified
I love exercising. A few years ago I was introduced to the Pilates Reformer. Lucky for me, I had a great instructor. When she retired I decided to become certified in order to continue training and reaping the benefits of the Reformer. It's a complete body workout that will improve flexibility, strength, and balance for any age group. You will see huge changes and tone your body in a matter of weeks!
I found InFit while I was pregnant with my second child. The enthusiasm and positive energy of the entire staff kept me motivated to exercise throughout my pregnancy and after. This eventually led to me joining the InFIt team. As a Mom I know how challenging it can be to make time for exercise but I also know how important it is! I hope to share with you my knowledge and passion for fitness and help you achieve your own personal fitness goals.

Bethany has a B.S. in Kinesiology (emphasis in sport psychology) and is NETA certified in group fitness and group cycling.

Hello! My name is Jone Briese, (pronounced Joan Breeze :) I believe in fitness, nutrition and better health as a way of life, FOR LIFE! Becoming a Certified Personal Trainer allows me to help you achieve the same, along with the increased quality of life.
30 years ago, I was skeptical taking my 1st group exercise class. (No I did not wear a leotard, YES, I had big hair!) I became hooked in my 1st class and have been involved in the industry at various levels ever since. Over the years, fitness, nutrition and better health have given me the strength and endurance to handle those challenges life presents!
I am so fortunate to have trainers and instructors at InFIT that really mean it when they tell you . . . ”don’t give up, you CAN do this”. I would love the opportunity to give you the same message. With your commitment and my accountability we CAN achieve your goals together! LET’S GO!!
Jennifer Grubba, MA, EdS, and 200 RYT, is passionate about teaching yoga as more than exercise or sport. As a gentle yet encouraging guide for others along their yoga journey, she is driven to help her students cultivate their own healing and transformative practice, and to lead a mindful life. Breathe. Move. Strengthen. Grow. Connect. Come experience the mind, body, and spiritual benefits of yoga with Jennifer. She is also a mother, School Psychologist, Founder of Blue Lotus Yoga Retreats, and Editor and Founder of MN Yoga Magazine.


Theresa Eicher is a mother of 7 who realizes that the key to a healthy, stress-reduced lifestyle is a great workout or personal training session. Join Theresa weekdays at 5 or 6 a.m. for a variety of formats, or schedule a time for Rope Training, Buddy/Small Group Training or Personal Training. She is ready to help you reach your fitness goals.
Heather is excited to instruct and motivate InFit clients to look and feel their best. Come and try Butts and Guts, BOSU, CRT, Bars and Plates, Group Strength, Boot Camp and more! You won’t be disappointed!
As a previous personal training and group exercise participant, Kellie found her new healthy lifestyle fun and energizing. Inspired and motivated to share her knowledge and experience, she became NETA (National Exercise Trainer s Association) certified in group fitness. Her areas of passion include: Aqua training, CRT (cardio resistance training), Endurance challenges, Kickboxing, and Yoga. She is a strong believer in cross training to increase both cardio and muscular endurances. Join her in class for an optimal workout!

Kellie is also Les Mills BodyPump Certified, NETA Yoga Teacher Certified, as well as Fit2gether ™ Mommy (Daddy too!) and Baby Yoga, Pilates, and Infant Massage Certification.

Every company needs a dependable, trustworthy behind-the-scenes team. Kim Hanauska has played this role and others including executive assistant for inFIT since 2009.

You may not see Kim teaching Zumba anytime soon, but her attention to detail and love for the InFit community makes her a treasured team member. Be sure to say hi to Kim next time you see her at the studio or out in the community and you'll be welcomed with a warm smile and a great conversation!

I have been coming to InFIT as a client for over 5 years. And during that time, I have been so inspired by all the positive energy, that I decided I wanted to join the team. As a working Mom, I know how challenging it can be to make time for exercise, but I also know how important it is to lead a balanced and healthy lifestyle, not just for myself but for my family. I hope to share with you my knowledge and passion for fitness and help you achieve your own personal fitness goals.
As a Nurse Practitioner I work to help patients achieve their ultimate health. Spin is a passion of mine and it is another way for me to help others strive for optimal health and wellness. I am very excited to be instructing spin and I challenge you to try it out.
Hello my name is Nicholas Koenig. Thanks for checking me out! I am a Certified Personal Trainer, a Certified Nutritional Consultant, and a Licensed and Certified Massage Therapist. My passion for a healthy lifestyle has helped countless people achieve higher standards of health and fitness over the course of several years. I have a basic, yet unique and unorthodox approach that is very direct, without frills, and to-the-point. My meticulous and individualized plans bring clients with interests in weight-loss, muscle gain, ultra-endurance running, conditioning, strength & power, and even triathlons. Whatever the goal you have in mind, I have the key to unlock its reality.
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