The Team
Who We Are
Dr. Samantha Zinnecker
PT, DPT, CP-S
Founder & CEO
Dr. Samantha Zinnecker, PT, DPT, CP-S received her bachelor of science in exercise physiology and her doctorate in physical therapy from Marquette University in Milwaukee, WI. While there, she spent time working in the Biomechanics and Motion Analysis Lab helping to understand and reduce injury in D1 athletes. She also had the
pleasure of learning from world renown professors and researchers who make up the physical therapy school staff at Marquette.
Once completing her doctorate in physical therapy, her education did not cease. Her passion for learning has led her to take countless continuing education courses. Her post-graduate course work includes, but is not limited to, dry needling, performance enhancement, blood flow restriction training, advanced rehabilitation of the baseball
player, managing running injuries, the McKenzie method, Mulligan manual therapy techniques, and vestibular diagnosis and treatment to name a few. She constantly has her nose in a research article and spends her free time keeping up with the latest treatment practices for her clients. If there is something she does not know, she will find the answer.
Dr. Sam is not only an exercise physiologist and a doctor of physical therapy, but she is also a champion performance specialist (C-PS). What does this mean? It means that Sam is able to build performance-based therapy and training programs to optimize movement and enhance performance. She assesses how you currently move and designs a program to take you to the next level in your fitness and/or athletic goals. While working towards earning her C-PS, she was taught by the leading physical therapist and researcher in the sports world, Mike Reinolds.
Being an athlete herself, she has had to deal with the consequences of injuries. From having surgery to going through her own rehabilitation, she knows what it is like to not being able to do what she loves. She is passionate about helping people of all ages return to what they love to do – pain free and with improved abilities.
She started her first physical therapy company, Movement Specialists of Michigan, in 2020 where she performed outpatient physical therapy services in the home. In February of 2023, she created PhysioFit, her second PT company, where she has two physical locations and a growing team of like-minded physical therapists.
Dr. Jacob Grabowski
M.Ed., PT, DPT
Doctor of Physical Therapy
Dr. Jacob Grabowski can be found at PhysioFit’s Detroit location. He developed his passion for exercise and movement at a young age through playing various sports, which led him to realize the body's strength and adaptability. This interest drove him to earn a Bachelor of Science in Biology from the University of Detroit Mercy. He furthered his education with a Master of Education in Kinesiology from Wayne State University and a Doctorate of Physical Therapy from D’Youville College in Buffalo, New York.
Since graduating, Dr. Grabowski has specialized in outpatient orthopedic settings, focusing on musculoskeletal injuries, sports medicine, concussions, and vestibular diagnoses. He continuously pursues further education in exercise programming, barbell sport rehab, vestibular rehab, and concussion rehab. His interests include recreational powerlifting, soccer, being a dedicated dog father to Brandi, and a loving husband. Dr. Grabowski is committed to demonstrating the body's strength and adaptability, helping patients achieve their life goals.
Dr. Vincent Dong
PT, DPT, CSCS
Doctor of Physical Therapy
Dr. Vincent Dong PT, DPT, CSCS graduated from the University of Michigan in 2020 with his Bachelor’s Degree in Kinesiology. He received his Doctorate of Physical Therapy in 2024 from the University of Michigan – Flint. He is also a certified strength and conditioning specialist and is well versed in treating barbell athletes.
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Outside of work, Vince enjoys powerlifting, running, reading, and hanging out with friends. He was a competitive powerlifter for 4 years and has now taken up marathons and triathlons. Vince is passionate about fitness and is committed to helping people of all backgrounds improve their function and return to doing what they love.
Dr. Alissa Davies
PT, DPT, OCS, ATC
Doctor of Physical Therapy
Dr. Alissa Davies, PT, DPT, OCS, ATC, received her BS in Athletic Training/Sports Medicine with a minor in Biology from Bowling Green State University in 2003. She attended Bowling Green State University on a full athletic scholarship for swimming all four years, competing in the 2003 US Open and 2004 Senior Nationals and qualifying for the Olympic Trials in 2004.
She completed her professional training at Oakland University, earning her Doctorate Degree in Physical Therapy in 2009 and receiving the Beth C Marcoux Research Excellence Award for her dissertation work.
Dr. Davies is a Board Certified Orthopedic Specialist (OCS) through the American Board of Physical Therapy Specialties, specializing in sports injuries, muscular imbalances, and extremity dysfunctions. She
also holds certifications as an Athletic Trainer (ATC), Certified in Integrative Dry Needling (CIDN), Specialized Functional Movement Assessment (SFMA) level 1 practitioner, Performance Enhancement
Specialist through NASM, and certified in Functional Movement Techniques and Rocktape application.
Dr. Davies has over 15 years of clinical experience in general orthopedics, neurology, sports medicine, pre-/post surgical care, sport-specific rehabilitation, performance enhancement/optimization, wellness training, injury prevention, women’s health, and neurological pathologies. She has wide-ranging experience treating patients of all ages and across all activity levels, from sedentary to highly active
populations, including national caliber/professional/semi-pro/collegiate athletes, ultra-athletes, and military personnel.
Dr. Davies evaluates and treats with a whole-body approach that combines knowledge and understanding of localized anatomy and function within the context of whole-body structure, function,
and movement patterns. She works to restore compromised mobility, strength, stability, and movement patterning through a variety of manual therapy techniques such as myofascial release, Graston, cupping, soft-tissue mobilization, joint mobilization, neuromuscular re-education, progressive exercise, dry needling, blood flow restriction training, and patient education. She enjoys developing a solid rapport
with her patients, solving clinical problems, and watching them progress to activities they need, want, and aspire to do.
Dr. Davies is a self-professed “biomechanics enthusiast” with a passion for learning new treatment and training techniques, perspectives, and the latest research to provide her patients with cutting-edge care.
Outside of the clinic, she continues to swim, participate in, train for, and compete in CrossFit and Olympic Lifting, be an outdoor enthusiast, travel, and spend time with family and friends.
Filler Room
M.Ed., PT, DPT
Doctor of Physical Therapy
Dr. Jacob Grabowski can be found at PhysioFit’s Detroit location. He developed his passion for exercise and movement at a young age through playing various sports, which led him to realize the body's strength and adaptability. This interest drove him to earn a Bachelor of Science in Biology from the University of Detroit Mercy. He furthered his education with a Master of Education in Kinesiology from Wayne State University and a Doctorate of Physical Therapy from D’Youville College in Buffalo, New York.
Since graduating, Dr. Grabowski has specialized in outpatient orthopedic settings, focusing on musculoskeletal injuries, sports medicine, concussions, and vestibular diagnoses. He continuously pursues further education in exercise programming, barbell sport rehab, vestibular rehab, and concussion rehab. His interests include recreational powerlifting, soccer, being a dedicated dog father to Brandi, and a loving husband. Dr. Grabowski is committed to demonstrating the body's strength and adaptability, helping patients achieve their life goals.
Filler Room
PT, DPT, CSCS
Doctor of Physical Therapy
Dr. Vincent Dong PT, DPT, CSCS graduated from the University of Michigan in 2020 with his Bachelor’s Degree in Kinesiology. He received his Doctorate of Physical Therapy in 2024 from the University of Michigan – Flint. He is also a certified strength and conditioning specialist and is well versed in treating barbell athletes.
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Outside of work, Vince enjoys powerlifting, running, reading, and hanging out with friends. He was a competitive powerlifter for 4 years and has now taken up marathons and triathlons. Vince is passionate about fitness and is committed to helping people of all backgrounds improve their function and return to doing what they love.
