Our Team

Sebastian Garbsch CPT - ACSM

Sebastian Garbsch, founder of Formative Fitness, always tries to turn negative experiences into positive ones.

After losing his father at a very young age, largely due to an unhealthy lifestyle, Sebastian became committed to living a healthy, balanced life. For almost a decade, Sebastian has been sharing his passion for health and fitness with others, not simply through personal training, but rather by proactively helping them make health and fitness a part of their daily lives. Over the years, Sebastian has worked with clients from various backgrounds, with a wide range of goals, and tailors their programs to meet these goals. In addition, Sebastian has been extremely successful with working around clients who have limitations such as injuries and health concerns, when necessary.

Sebastian’s diverse approach to fitness is largely reflective of his passion for many physical activities, ranging from an immense list of outdoor activities, to traditional strength training and competitive sports. Sebastian’s only requirement of his clients (and himself) is that they strive to achieve their best.

Sebastian is accredited in personal training through ACSM, and also has earned an A.A.S. degree specializing in health and nutrition. Additionally, with the goal of creating a successful personal trainer studio, Sebastian earned his B.A. in Business, and holds various technology / accounting certifications.

Brenden Booth CPT - ISSA

Brenden Booth began his journey with health and fitness as a fun and healthy activity while living out west many years ago.

Over the years, this one time hobby has grown into a passion for helping other people reach their health and fitness goals in upbeat and positive ways. Since then, Brenden has learned about fitness in numerous ways, through training himself, competing in various fitness events, and by helping others. In Brenden’s free time, he enjoys many great eclectic things such as hiking, camping, taking pride in landscaping his home, singing, kayaking, tubing down the river, and listening to vinyl. Brenden is excited to offer Formative Fitness’s great Personal Team Training program, as well as 1-1 training.

Theresa Sommerfield CPT - AFAA

Theresa has been a personal trainer and group instructor for the past 13 years. She discovered her passion for health and fitness after realizing she needed to make changes to her own lifestyle with proper nutrition and exercise.

As a busy parent of three children she understands the challenges our fast paced culture faces and will work hard to meet every client's individual needs. Theresa has a vast background with many different experiences such as bodybuilding, CrossFit, and Olympic Weightlifting. She also holds multiple certifications such as CF-L2, USAW sports performance coach, and (CAFS) Certification in Applied Functional Science through Gray Institute. Her specialty and passion is functional fitness which allows clients to apply their training to match their everyday lives to enhance their quality of living. She enjoys mountain biking, leisurely hikes, and hanging out with her family.

Emily Arbut

Emily is most passionate about inspiring positive transformation in others. Utilizing yogic philosophies and principles, Emily supports clients as they navigate the various stages of their life path: from injury to pregnancy to the typical progression of our bodies as we age.

Mind and body health needs shift throughout our lives, and a personalized yogic practice can help all individuals to realize the beauty and potential for growth in the all of the transitions and day-to-day joys & challenges of life.

Emily is a certified yoga instructor and postpartum doula. She has received specialized training in yoga for pregnancy, the postpartum period, and in pelvic floor health. Realizing that all bodies contain imbalances, Emily helps her yoga students improve body posture, alignment, strength and flexibility, regardless of where they are in life.

On a weekly basis, Emily offers private, couples and small group yoga instruction at the Formative space and online. Small group sessions have a max of 4 participants to allow for ample individual instruction. Her yoga students are provided with personalized yoga sequences, along with ample resources and tips to grow their yoga practice in-studio and at-home. Yoga is more than just poses, it is a personal path towards mindbody growth and self-discovery. Yoga is an amazing agent for positive transformation when given the right tools, support and perspective.

A native Michigander, Emily is at home in all 4 seasons. When not on the mat, you can find her hiking, running, biking, kayaking, cross-country skiing, playing tennis or learning something new- all with her toddler in tow. As active as her life can be, Emily also finds equal joy in the less active pleasures of reading, meditating and vegan cooking. She is excited to share her knowledge, passion and light with all who come into her path.