Brandon Dederich

Brandon Dederich, MS, MPT, ATC, ITPT, founder of Movement First received his Bachelor of Science degree from California State University, Pomona with an emphasis in Sports Medicine and Athletic Training, and postgraduate degrees from California State University, Fullerton and California State University, Long Beach with Masters degrees in Kinesiology (Exercise Science) and Physical Therapy, respectively. 

Brandon also completed his Fellowship training from the Movement Performance Institute under the direction of internationally recognized USC professor Christopher M. Powers, Ph.D., PT, FACSM, FAPTA.  

Before Brandon’s professional career as a Physical Therapist, he ran cross country/track and played soccer and was an Academic All-American at Cal Poly Pomona from 1989-1994.  Brandon’s professional work experience spans 25 years and includes tenures as an Athletic Trainer with the Sports Medicine departments at California State University, Fullerton, UCLA, and the Los Angeles Galaxy.  Additionally Brandon has worked with clients of all levels including recreational athletes, Olympic gold medalists, and athletes from the NCAA, NFL, NBA, NHL, and MLS. In 2003, Brandon founded Xcelerate Physical Therapy, with locations in Thousand Oaks and Moorpark. He later expanded his company to Orange County with Sister clinics in Corona del Mar/Newport Beach, Seal Beach, Costa Mesa, and Newport Beach (Movement F1rst, 2016).  

Currently he is the Athletes First (Professional representation agency) NFL Scouting Combine Physical Therapist, having directed their NFL combine prep training since 2013.   Brandon specializes in the understanding of applied biomechanics related to movement and sports performance, gait and running analysis and return to sport/injury prevention evaluations, and pre and post-operative rehabilitation.  

The level of care you will experience in Brandon’s clinics are based on the latest cutting edge research of Dr. Powers and others and in many instances before it has even been published.  Brandon’s personal goal is to provide and even push the boundaries of what physical therapy can provide. 

Emily Ferree

Emily Ferree, PT, DPT received her B.S. in kinesiology from USC in 2013. During her time as an undergrad Emily competed on USC’s rowing team, walked on to USC’s soccer team, and graduated at the top of her major department. Emily went on to receive her Doctor of Physical Therapy degree at USC where she earned three merit scholarships from the division, became a USC Town and Gown Scholar, earned the division’s Outstanding Scholarly Achievement Award, was awarded the Order of the Golden Cane, which is USC’s top honor for clinical excellence and leadership and graduated at the top of her class. 

Emily has clinical experience working in acute care cardiac ICU, outpatient neurology, sports medicine, and neurodevelopmental pediatrics. In her final year of physical therapy school Emily completed a clinical rotation at Movement Performance Institute with Dr. Chris Powers where she performed biomechanical movement analysis evaluations using some of the latest technology in the industry to treat high-level athletes and complex sports injuries.  Emily is also a certified Fibroblaster provider for the use of instrument assisted soft tissue mobilization and has completed level 1 training in fascial manipulation. 

Emily joins the Movement First team with a passion for the use of movement analysis in injury prevention and sport specific rehab. Emily is particularly interested in using biomechanics not only to treat and prevent injury, but also to improve performance in athletes to ensure their ability to continue to compete at the highest level possible.  

NATE JEFFRIES

YASSI HARIRINIA

Nate Jeffries PT, DPT, CSCS earned his Doctorate of Physical Therapy from the University of Southern California in 2018. While at USC he earned three academic merit scholarships and was awarded the Kathleen Bice Clinical Excellence Scholarship. In DPT school he completed clinical internships in both orthopedic and neurologic settings, including at Movement F1rst. He completed his final full-time clinical internship with Fischer Sports Institute in Phoenix, AZ, gaining extensive experience working with MLB, NFL, and NFL combine preparatory athletes.

Nate believes in a functional, patient-centered, and movement driven approach to care, and has completed the Certification in Applied Functional Science (CAFS) through the Gray Institute. He has also completed certifications in Fibroblaster Instrument Assisted Soft Tissue Mobilization (IASTM), blood-flow restriction training (BFR), myofascial decompression cup therapy, and is a Certified Stick Mobility Coach.

Prior to physical therapy school Nate earned his Certified Strength & Conditioning Specialist (CSCS) certification and worked as a high school strength & conditioning coach overseeing football, baseball, and softball athletes. He completed his B.S. degree in Kinesiology from California State University Fullerton, graduating magna cum laude in 2014.

Yassamin (Yassi) Haririnia, PT, DPT, OCS, ITPT received her Doctorate of Physical Therapy in 2008 from the prestigious physical therapy program at the University of Southern California in after receiving her Bachelor of Health Science from the University of Miami in 2005, while majoring in Pre-Physical Therapy with a minor in both Sports Medicine and Chemistry.  Yassi has worked extensively in the outpatient orthopedic setting and has been recognized as a specialist having earned her Orthopedic Certified Specialist (OCS). Yassi also specializes in treating patients with concussion injuries and is a IMPACT Trained Physical Therapist (ITPT).

As an undergraduate, Yassi was recruited to Miami's Division 1 Women's Rowing Team on both an academic and athletic scholarship based on her achievements as Captain of her high school's rowing team in Virginia. She then went on to become Co-Captain of Miami's team, helping lead them to several medals including a gold medal at the FIRA Championships as well as silver at the BIG EAST Championships. Yassi graduated at the top of her class with honors and was awarded both an NCAA Women's Enhancement Postgraduate scholarship and an ACC Postgraduate scholarship. Upon arriving at USC, she continued her athletic path by joining and later becoming the Team in Training Captain of the East LA division, a Triathlon Fundraising program for the Leukemia and Lymphoma Society, competing in several triathlons including a Half Iron Man.  

Yassi currently specializes in treating patients with various orthopedic impairments, vestibular dysfunctions, concussion injuries, and neurological conditions that adversely affect balance and performance.  Yassi has received comprehensive training using the latest and most comprehensive balance technology available, the BERTEC Balance Advantage and its Computerized Dynamic Posturography (CDP), and the Bertec Vision Advantage systems.  She is the Senior PT and Director of Movement F1rst (M1) concussion and vestibular program, which is the only clinic in Southern California currently using this technology. She is also the Senior and Lead Physical Therapist at Seal Beach Physical Therapy, a sister clinic of M1.  It is together with Yassi’s knowledge of the latest in research and advanced technology that she is able ensure the best possible outcome for each of her patients.   

Our partners develop the cutting-edge technology that helps us get you back in the game and collaborate with our movement specialists to optimize sports performance.

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BERTEX CORPORATION | An international industry leader in force measurement technology for biomechanics, Bertec specializes in gait analysis equipment, balance assessment and training, ergonomics and athletic performance

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BIODEX | Serving the medical profession for more than 60 years, Biodex develops rehabilitation technology centered on neuromuscular evaluation, therapeutic exercise, gait training and range of motion difficulties.

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SIMI | Used for movement analysis, Simi systems are high-speed camera based systems using state-of-the-art industrial image processing technology.

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ADVANCED BASEBALL ACADEMY | Advanced Baseball Academy is the Premier Baseball Academy in the Kansas City Area. ABA features coaches with training in both performance and sports biomechanics that provide advanced training for athletes that want to take their game to the next level. 

QUARTERBACK ACADEMY | Exclusive quarterback training in Texas and Wisconsin.  Using slow motion video analysis, they train their quarterbacks to maximize their power, accuracy, efficiency and decision making. The Level 3 Quarterback Academy is committed to helping young athletes elevate their quarterback play to the highest level.