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About Us


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About Us


The mission of Impact Sport Science Group is to provide their clients with an unparalleled movement and learning experience to achieve their sport and health goals. 

Specialization in optimizing your body for life and improved performance

  • We offer constant customization based on each individual client and athlete.

  • Muscle Activation Techniques™ 

  • Exercise Consultation and Program Design

  • Biomechanics and Footwear Consultation 
Improving your performance inside the gym, on the field, or your quality of life all starts with a consultation.  Click here to start.

Improving your performance inside the gym, on the field, or your quality of life all starts with a consultation.  Click here to start.

Exercise, sports, and daily activities are all made possible by the brain and nervous system’s exquisite feedback operations.

 

The muscular system is the 2nd largest system in the body.  Our daily lives depend on the efficiency and performance of this system.

The central quality of our training philosophy is to maximize performance as efficiently as possible.  We employ exercise strategically to improve and maintain the health of the muscular system.

 
Constant customization of your exercise starts with a Comparative Mobility Assessment.  Let's unlock your potential.   

Constant customization of your exercise starts with a Comparative Mobility Assessment.

 Let's unlock your potential.   

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Muscle Activation Techniques™


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Muscle Activation Techniques™


The benefit of MAT is that the changes can be immediate. A professional baseball pitcher increased his throwing velocity by 10 mph, immediately following a MAT session. This was due to improved mechanics combined with pain free motion. We see these types of changes every day.
— Greg Roskopf, the founder and developer of MAT.

Muscle Activation Techniques™ (MAT) prepares the body for all types of exercise, sports, physical therapy and chiropractic work. It helps reduce the body's need to compensate and can eliminate pain associated with improper body mechanics.

Muscle Activation Techniques, developed by Greg Roskopf, are a biomechanically based bodywork technique, where an MAT specialist will use a range of motion exams, specific muscle testing, precision palpations at the neuro-muscular junction, and/or low intensity isometrics in each process; to detect and remedy muscular imbalances.

Muscle Activation Techniques™  is a procedure that addresses weak links in the muscular system.  The result of addressing weak links equates to the body functioning better and possibly decreasing discomfort, feelings of tightness, and inflammation.  MAT does not directly treat pain, but MAT can provide faster recovery through reducing harmful compensation patterns.

The physiology and science that supports Muscle Activation Techniques™ works on the premises that joint mobility that is also stable is a result of optimal communication between the nervous system and the muscular system. The weak links I’m referring to are basically glitches in communication, not necessarily how many muscle fibers contract to lift your heaviest set. But don’t think for a second that weak links in the communication system won’t rear its ugly head when you are 89 minutes into your soccer game, or your last heavy set or on mile 3 of your marathon, because it will!  The question is how long can your system function with weak links before injury, pain, and tightness present themselves.

Approaching the communication between the nervous system and the muscular system is effective because the muscles are a giant sensory organ.  Just like the nose is a sensory organ that responds to chemicals, the muscles respond to mechanical force.  Think of how gravity dictates our upright position, and that walking is a movement against gravity.  The nervous system senses and calculates gravity and all the other forces around us. It uses it’s best available tools, the muscles, so that we can survive in a gravity based environment.

Since the muscles are a giant sensory organ, and that dictates the outcome of forces challenging the body, doesn’t it make complete sense that optimizing their communication will improve movement in all its forms? 

Exercise, sports, and daily activities are all made possible by the brain and nervous system’s exquisite feedback operations: Balancing both muscle force production and regulation through a system of sensory detection; calculation of a complex response to movement challenges; and ultimately creating an output solution via the muscles and tissues, executed through the nervous system. The muscular system is quite impressive in that it will operate in under less than optimal circumstances through muscular and joint compensation. If this feedback loop of less than optimal conditions is allowed to continue over time, it can diminish a person’s ability to function at a high level of performance. This is when pain, tightness, and injuries present themselves. MAT aims to identify and correct muscular imbalances through improving a muscle’s ability to communicate sensory information to the brain through a systematic process.

Muscle Activation Techniques are a unique approach to correcting muscular imbalances. In traditional therapy settings, the focus is on the tightening of muscles that create instability. Founder of MAT, Greg Roskopf, equates this tightening response to walking on ice. Your body’s natural inclination is to tighten all your muscles to keep the major areas protected--everything is on high alert.   MAT’s approach is based on the belief that the “tightening” is a secondary response to muscle weakness. An MAT specialist will seek to address the body’s desire to provide stability through the joints by strengthening the signals sent to muscular attachments at the joints; concentrating on the contractile abilities of the muscles, as well as strengthening your body’s awareness of a comprehensive muscular response. This, in effect, “melts the ice” --creating stability in any circumstance.

  

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Our Team


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Our Team


“Talent wins games, but teamwork and intelligence wins championships.” 
― Michael Jordan

 


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Jennifer Schwartz-Biggle MS 

Owner, Muscle Activation Techniques™ Specialist, Director of Injury prevention and Fitness at Alexandria Soccer, and exercise physiologist 

Jennifer Schwartz-Biggle is the owner of Impact Sports Science. Growing up, Jenn was a fierce competitor on the soccer field. She played for the the Maryland State and regional teams, won a division II scholarship and had walk-on trials for European club teams. After losing her mom at 20, Jenn took a hard look at life and decided to commit herself to her passion for soccer. Upon leaving undergrad at Goldey-Beacom College, she tried her hand at playing overseas. Although her professional soccer career did not take off, it allowed her to learn about what it meant to be a female athlete. America presents such great opportunities and she firmly believes that both the past and present generations of female athletes will change the world.

 

At 23, Jenn enrolled at the Physical Therapy program at Marymount University and a few years later, after her second ACL tear, discovered the life-changing practice of Muscle Activation technique (MAT). Immediately Jenn knew that she wanted to bring MAT to the world of female athletes, elevate their game and physical well-being even more. She has never had her ACL repaired and the process of building and maintaining strength has been priceless to her technical skill development.

 

In 2009 she launched Impact Fitness DC and began coaching girls soccer.  Personal training paid the bills but wanted she was really after was to be able to blend the injury prevention aspect of MAT into her true love - soccer. In 2012 she became a certified MAT specialist and this fall, Jenn has recently completed her Masters of Science in Health and Fitness - a graduate program designed specifically for MAT specialists.

 

Jenn has helped a large array of clients (Olympic level athletes, 14 year old competitive soccer players, NFL players, and Moms ready to focus on their own body) gain strength, stability, and achieve their seemingly impossible goals.  

 

"Being able to integrate my love and appreciation for the game of soccer, the incredible effects of Muscle Activation Techniques™, and the practice of healthy living is a dream come true.” - Jennifer Schwartz-Biggle

 

  • Bachelors of Science in Health Sciences and Pre Physical Therapy

  • Masters of Science in Health and Fitness Management

  • Muscle Activation Techniques™ Specialist MATcs

  • Certified through American College of Sports Medicine as an Exericse Physiologist

  • Insured through IDEA Fitness

  • Completed the Muscle Activation Techniques™ Jumpstart series to prescribe isometric based exercise

  • Has completed over 300 hours of professional development in the Resistance Training Specialist Mastery Program to apply science and physics to the body with exercise application (Neuro-phsyiology, Cadaver Anatomy, Foot Function and Biomechanics, and Performance Enhancement).

  • Played Division II collegiate soccer and Maryland ODP.

  • Coaching experience includes Alexandria Soccer Association’s Travel Academy includes TC Williams High School Girls Soccer, Strength and Conditioning Coach WPSL Torino Ladies, and travel girls soccer from ages 10-16 years of age.

 


 

Chris Worrell, MTA, ATC, CES

Chris is an athletic trainer that has been a part of sports since he was a kid. He was no stranger to injury while growing up which sparked his interest in the medical side of sports.   He did his undergraduate work at East Carolina University and while working there was selected to work as a Summer Intern for the Indianapolis Colts. It was here, while working a Monday Night Football game that he knew that he had found his calling.

 

Working along side athletes from immediate injury/surgery all the way until they are back to game/competition is what drives Chris to be the best at what he does. He likes to focus on the minute details of how an athlete moves and how to get the most out of every client/patient he works with. From top-level athletes to clients that just want to get the most out of their athletic body, he will put everything he has in his work.

 

Over the past 10 years he has worked with a wide range of athletes such as high school, NHL, NCAA Division I gymnasts, Olympic athletes and Cirque du Soleil performers. Chris has learned that focusing on single, individual parts of a clients body is not enough, “you most look at the big picture, and the body as a whole, to get it to peak performance.”

 

  • Bachelors of Science in Athletic Training (Minor in Health Education)

  • Masters in Tourism Administration (Concentration in Sports Management)

  • Certified Athletic Trainer

  • Corrective Exercise Specialist

  • Active Release Technique Provider (Full Body)

  • Indianapolis Colts Summer Intern

  • Washington Capitals Intern

  • NCAA Division I Gymnastics Athletic Trainer

  • 17 Time NCAA Division I Rifle Athletic Trainer