Group Fitness Instructor, business owner, and your guide to fitness reinvention.

Mark Kohlhorst brings a uniquely relatable perspective to his role as a Group Fitness Instructor at Catalyst Fitness, having experienced both the peaks of fitness and the challenges of health decline before making a triumphant return. In his 30s and 40s, Mark thrived as a fitness instructor, but life's demands—launching a business, starting a family later in life, and eventually caring for parents after a serious accident—led to a period where his physical and mental health deteriorated. This personal journey of reclaiming his wellness through a "life 180" informs his passionate, all-or-nothing approach to the classes he now leads at Catalyst.

Creating Energetic, Transformative Classes: As a certified Spinning™ instructor, Power Instructor, and leader of both Fit For Life and Strength For Life classes, Mark brings versatility and enthusiasm to every session. He values the creative freedom Catalyst provides, allowing him to design classes with personally selected music and exercise plans that challenge and inspire participants. His training philosophy—"A walk after dinner every night is just not going to cut it" and "Why show up if you don't plan to give it your all and excel?"—pushes members to discover capabilities they may not have realized they possessed.

What Makes Mark Unique:

• Comeback Story: His personal journey from fitness professional to health struggles and back to wellness provides authentic understanding of members' challenges.
• Multiple Certifications: Holds specialized credentials as a Spinning™ instructor, Power Instructor, and general fitness instructor with additional background in water fitness and warm water pool therapy.
• Business Owner: Operates his own successful business (Mark's Ark Animals) while maintaining his fitness career, demonstrating effective life balance.
• Water Enthusiast: Brings his love for boating, sailing, and fishing to his fitness approach, adding variety and joy to training.

When not leading energetic classes at Catalyst, Mark enjoys treasure hunting at garage sales, yard sales, flea markets, and resale stores, as well as attending animal sales and auctions as an avid pet owner. His greatest joy comes from traveling around the country with his son. Looking ahead, Mark aims to "continue to be relevant as an older fitness instructor" and serve as "an example of strong mind and strong body in my 5th decade," inspiring members of all ages with his dedication to lifelong fitness. Described as "likeable, dedicated, and well-rounded," he embodies Benjamin Franklin's wisdom: "Tell me and I forget. Teach me and I remember. Involve me and I learn."