ABOUT US

Michael Seibold

Michael A Santa Monica native, has been immersed in the fitness world from an early age, influenced by his mother and her partner, both personal trainers. His introduction to bodybuilding at Gold's Gym in Venice instilled a strong work ethic and passion for fitness, leading to his outstanding performance at Santa Monica High School, where he set lifting records and showcased exceptional athletic prowess on the football field.

At 18, a knee injury during a football game ended Michael's D1 scholarship dreams and professional football aspirations. Undeterred, he focused on rehabilitating his knee and strengthening his body. His perseverance earned him a spot on the West LA College football team and eventually a scholarship to Pace University.

Despite a subsequent injury at Pace, Michael's passion for fitness and rehabilitation only grew. He returned home, determined to deepen his understanding of the human body and performance enhancement. Recognizing deficiencies in existing training programs, Michael earned his certification as a personal trainer through the International Sports Sciences Association (ISSA) and returned to Gold's Gym. His expertise quickly led to his recruitment as a trainer at Equinox West LA.

At Equinox, Michael advanced rapidly, mastering program design and application, and building a successful business.

A significant milestone in Michael's career was becoming one of multiple owners of a gym in partnership with Robert Downey Jr. He played a pivotal role in building the facility and managing a team of over 60 trainers, further honing his leadership and operational skills.

Michael specializes in creating individualized programs tailored to clients' unique goals, emphasizing safety and effectiveness. His areas of expertise include nutrition, sports training, strength gain, injury prevention, and weight loss. Additionally, Michael excels in working with the aging population, promoting health and exercise to enhance their quality of life. He is also dedicated to helping individuals in addiction recovery develop healthy habits in fitness and nutrition, supporting their journey towards a balanced and healthy lifestyle.

Christen Miles Seibold

Christen Seibold

Born and raised in Aurora, Colorado, Christen Seibold discovered her passion for movement, teaching, and the human body at an early age. With a mother who was a physical therapist, she learned to recognize movement patterns long before most children her age. In fact, at just five years old, she proudly announced she had injured her “patella” instead of simply saying she had hurt her knee.

Athletics quickly became a central part of Christen’s life. She joined a competitive swim team at age six and, by nine, was training year-round in gymnastics. While her mother instilled a love for anatomy and rehabilitation, her greatest coach was her father, whose remarkable ability to teach movement and athletic performance inspired Christen’s passion for coaching and education.

At fifteen, Christen began teaching gymnastics to athletes ranging from preschoolers to adults. It was there she discovered her gift for helping others build confidence, develop new skills, and reach their potential through movement—a passion that ultimately shaped her career.

Christen earned her Bachelor’s degree in Kinesiology and Applied Physiology from the University of Colorado Boulder. After graduation, she worked as a Physical Therapy Aide at Boulder Center for Sports Medicine, where she gained invaluable experience assisting with rehabilitation programs and therapeutic modalities alongside physical therapists.

Her career soon brought her to California, where she joined Tahoe Forest Hospital, working in both inpatient and outpatient physical therapy. Under the mentorship of experienced clinicians, Christen helped develop post-rehabilitation exercise programs while focusing on injury prevention. After repeatedly seeing patients return with preventable injuries, she realized she could make an even greater impact by bridging the gap between rehabilitation and fitness. She earned her NSCA Certified Personal Trainer certification and dedicated her career to helping people move better, prevent injuries, and improve their quality of life.

In 2007, Christen joined Equinox in San Francisco, where she quickly built a thriving business based on her expertise in corrective exercise, functional movement, and post-rehabilitation training. Over more than a decade with Equinox, she served as a personal trainer, educator, mentor, and manager, helping develop both clients and fellow fitness professionals. It was also through Equinox that she met her husband while teaching continuing education in exercise science.

Today, with nearly two decades of experience, Christen is a full-time private trainer serving clients throughout the Los Angeles area. She specializes in functional strength training, injury prevention, post-rehabilitation exercise, healthy aging, weight management, and performance optimization. She has a particular passion for helping women navigate every stage of life, including preconception, IVF, pregnancy, postpartum recovery, and perimenopause. Drawing from both professional expertise and personal experience, Christen understands the unique physical and hormonal challenges women face and creates individualized, science-based programs that help them feel strong, confident, and supported throughout their journey.

In addition to her private training practice, Christen works part-time as a contracted fitness professional with Pacific Neuroscience Institute, specializing in brain health and cognitive fitness. As a Certified Brain Health Trainer, she designs evidence-based exercise programs that support cognitive function and works with individuals experiencing mild cognitive impairment and other neurological conditions.

Christen believes exercise is one of the most powerful tools for improving quality of life. Whether she’s helping an athlete return to sport, guiding someone through post-rehabilitation, supporting a woman through IVF or perimenopause, or helping older adults maintain their cognitive and physical independence, her mission remains the same: to empower people with the knowledge, confidence, and strength to live healthier, more active lives.

Contact

E-Mail — seibold.fitness@gmail.com
Phone — 310.804.5756

Facebook — https://www.facebook.com/SeiboldFitness/

Instagram— @beboldfitness