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Mother-daughter duo - Registered Dietitian and Personal Trainer

Our Story

Hello and welcome! We are a mother-daughter duo from Alaska and so excited to share our passion for exercise and nutrition with you.  Having worked in many of the local gyms on the Kenai Peninsula, the dream of owning our own studio never left. In 2016, that dream became a reality as we moved into our own space. Then in 2021, our boutique style studio was built, and it is beautiful.

We love that our clients feel a sense of community within our studio. A place where everyone is welcome, people are encouraging and supportive to others, and the energy within is upbeat, kind, and inviting.

Our goal is to meet you where you’re at in your fitness or nutrition journey, make you feel welcome, and help to keep you motivated. We know how hard it can be to commit to yet ANOTHER thing, but we are here for you!

Muscles In Motion Founders

Joni Dykstra

ACE Certified Personal Trainer for over 20 years.


Joni has a B.S. in Physical Education from Oregon State University and is a certified Keiser Cycling Instructor.


Joni offers a variety of ways to incorporate strength training and cardio into your life. Whether you are looking for a new weight-lifting routine, training for a specific event or sport, or just looking to start with something basic, she can help you achieve all your fitness goals.

Joni is a breast cancer survivor, Dallas Cowboy fan to the core, runner, lover of all animals (even spiders!), does NOT enjoy cooking, and chances are you'll find her jammin' to some Rock n Roll!

Personal Trainer in beautiful Kenai Alaska
Registered Dietitian in beautiful Kenai Alaska

Shelby Dykstra

Shelby is a Registered Dietitian Nutritionist 

and ACE Certified Personal Trainer.


She has a B.S. in Dietetics and has completed 1200+ hours of supervised practicum hours in wellness, foodservice, community and clinical nutrition.


Her passion is helping clients learn to find balance with food + fuel their active life through evidence-based nutrition education and mindful eating.

Shelby loves trail running, creating delicious (and beautiful) sugar cookies, could listen to music for hours, and genuinely dislikes taking care of flowers/plants.

Fitness Center

Toby Long

This is a fun, dynamic place to get a great workout!


Jenna Kathleen

Joni and Shelby are absolutely amazing at their craft! They genuinely care about your well-being and inspire you to break free from your comfort zone. There is no other place like it! I am SO glad that I found Muscles in Motion!


Mirian Alejandra

Joni and Shelby are very welcoming and the place is adorable! Found everything I needed for a full body workout. Also, I think the bike classes are awesome!

Indoor Cycling Classes

Have questions?  Want to learn more?

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