Boston Sports Medicine and Performance Group, LLC Blog

Congrats Dr. Gerry Ramogida - Performance Therapy Leader

Posted by Boston Sports Medicine and Performance Group on Wed, Jan 22, 2014 @ 07:01 AM

Congrats to 2014 BSMPG Summer Seminar Speaker, Dr. Gerry Ramogida and the Seattle Seahawks for their recent win vs. the San Francisco 49ers and earning a trip the Super Bowl!

Learn how joint mechanics affect top end performance from Dr. Ramogida at the 2014 BSMPG Summer Seminar.


Dr. Ramogida


Topic: Mechanics and Manual Therapy, Influences on Performance

Workshop: Micro-movement dictates Macro-movements


Dr. Gerry Ramogida is an internationally recognized chiropractor and performance therapist. He has served on many Canadian national teams and across a wide range of sports from football, soccer, ice hockey and athletics. Dr. Ramogida has been a chiropractic consultant with the Seattle Seahawks of the NFL since 2002. He was also brought on by the UK Athletics team as “their Lead” Performance Therapist for the 2012 London Olympics where they won six medals including four gold medals. He has been a practicing chiropractor since 1997 and has worked with dozens of high-profile professional and Olympic athletes. His research interests include how manual therapy influences performance and motor learning, particularly as it relates to the teaching and acquisition of sprint technique and speed development.


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Join the Leaders in Sports Medicine and Performance at the 2014 BSMPG Summer Seminar - May 16 & 17, 2014.

Registration is now OPEN.

Topics: Gerry Ramogida, BSMPG Summer Seminar

Registration for the 2014 BSMPG Summer Seminar opens Jan. 1st

Posted by Boston Sports Medicine and Performance Group on Mon, Dec 30, 2013 @ 09:12 AM

BSMPG Summer Seminar

Registration opens Jan 1st, 2014 for the 2014 BSMPG Summer Seminar


Topics: BSMPG Summer Seminar

Evidence Based Norms - Developing your own Screening System

Posted by Boston Sports Medicine and Performance Group on Thu, Dec 26, 2013 @ 07:12 AM


For six weeks now, we shared the needed terminology and concepts to help practitioners develop their own fast and comprehensive approaches to screening, with the goal of helping athletes to reduce injuries. Surface EMG and Motion Capture is growing and evolving with colleges and professional teams each year. What this blog will share is what some of most innovative teams and performance specialists are doing to get an advantage on the field and improve internally with rehabilitation, and more importantly, accelerated communication. Data is flooding everyone involved with the athletic performance and medical space, so teams are looking to find better ways to get information that is relevant and actionable, versus interesting and redundant.


Building a Performance Lab


The data found from a team or clinic's internal use of surface EMG and motion capture every day is shaping the changes in rehabilitation and training.  Commonly though, coaches and medical professionals still just read already published research and try to decipher only what is useful and practical, thus claiming they are evidence based. This stunts the growth of new and true evidence based improvements and performance – which are demanded real-time.  Better would be for us to create our own, however, historically the problem with research has been that even though much of it is applicable, only the researchers with intricate and complicated lab equipment have the set-up and time to perform the experiments, thus making innovation very slow. With that being said, the ivory tower disconnection between those involved in science, and those working in the trenches, is now a thing of the past. Clinicians and coaches are doing their own real time studies now, and using their own methods to find better ways to help athletes. This is performance. This is staying ahead of the curve. And this is evidence based.



Using Surface EMG to Predict and Prevent Injuries


In the past, rehabilitation and pain management was the primary role of sports medicine doctors, but as strength and conditioning coaches have evolved and become crucial to injury prevention as well, they are now looked at as experts in screening to identify risk and use interventions to decrease risk. Coaches are expected to predict and prevent injuries as much as humanly possible, and whoever is more successful at doing so is far more valuable than those that focus on better rehabilitation programs. Screening is more powerful when the results tell where and why something is not functioning, rather than getting an empty score, void of detail - cause and effect. Interventions are more effective when you know why something in the body is impaired, not a vague summary of a movement pattern. Mentioned earlier, squatting and jumping are excellent movement screens but the true question is now the movement results but the movement causes and contributions.  Is a muscle group not firing fast enough? Is the ratio or contributions from different muscle systems off? Is the joint system not supported by enough activity in the area? Countess questions can be answered when comprehensive objective measurements are included. Corrective exercise becomes a laser-guided application versus the shotgun approach which is unavoidable without these tools.



Using Surface EMG to improve Performance


The same data from screening can be used for performance monitoring of athletes for improvement in training. Currently teams are interested in getting the most out of warming up for training and seeing what exercises and training programs change the activity in areas that may be over-recruited or under active. Coaches are looking at EMG metrics from training to see how resistance training and speed development is influencing outcomes.


Example Performance Protocol for NCAA Division I Soccer


A sport specific and skill specific battery of tests was constructed to screen athletes functionally. Similar to an obstacle course, teams save valuable time by including an array of tests strung together to get a lot of key data in a very short period of time. By screening general athletic movements paired with specific soccer actions, the performance staff could see relationships between movement screen results in the clinical assessment, and the findings of their sport specific test series. Relationships like this that are performance based (time or distance) are now bolstered with the information from EMG and kinematics to illustrate how they achieved scores in speed, agility, and power. Five tests are explained in detail and include example risk and performance scoring that leverages inclusion of surface EMG and motion capture.




Agility Station (with or without dribble)


Athletes can see if ball control and general body agility is changed or improved year to year by dribbling and or running through choreographed patterns set by both team and performance coaches.


Performance Example: Improvement in time and muscle coordination.


Risk Example: Lack of deceleration and acceleration, balance, and poor recruitment in muscles that help reduce force in cutting activities.



Short Speed Test


Timing gates set up between 0-15 yards/meters is an excellent way to see if MSS or maximum sprinting speed is improving year to year from strength and speed development.


Performance Example: The change in muscle activity such as the quadriceps, from resistance training programs, and peak activity or silence periods (relaxation).


Risk Example: The inter- and intra-activity of adductors compared to baseline, different team members, and different sports.



Single leg Rotational Hop and Stick


The athlete initiates a single leg vertical jump and turns 90-180 degrees both right and left to the same leg. The athlete must exhibit control on the landing with a minimum hold or “stick time” of the same joint angle, roughly 90 degrees, without having the other foot touch the ground for balance. Coaches can modify this test with displacement horizontally in different patterns as they wish.


Performance Example: Improvements in flight time and contact time to pause, improvements in knee and hip kinematics and symmetry


Risk Example: Lack of normal activity to muscle groups during initiation of jump to poor co-contraction activity and knee collapse during landing.



Bilateral Kicking from Specific Distances


Players perform shots on goal or general kicking patterns in position specific scenarios both legs from different field locations. Shots are scored based on targeted requests and velocities can be seen with laser timing devices or radar gun.


Performance Example: Ball Velocity and Accuracy with both legs


Risk Example:  Muscle coordination patterns that change after injury or fatigue that accompany with lack of performance and increase in joint/soft-tissue injury.



Vertical Jump (with or without approach)


A simple vertical jump can be made into a fantastic ACL screening solution, a strength training evaluation method, and performance indicator for player’s ability to get to the ball in air spaces specific to crosses and corner kicks. A gross jump, with counter movement or from static position, is a quick and convenient tool that is timeless and well established.


Performance Example:  Wattage or center of mass displacement, muscle activation timing and triggering.


Risk Example: Valgus collapse from lower extremity weakness, due to specific muscle groups.


With the performance lab tools these and other various sequences, movement patterns, and skills can be optimized.  You are now able to comprehensively monitor and thus, manage, how athletes are moving. Teams should be encouraged to create their own tests based on their unique environment and ability to provide interventions with their staff.  For more information on how EMG is making a difference with teams please visit us at

Registration for the 2014 BSMPG Summer Seminar opens on Jan 1, 2014!


Topics: BSMPG Summer Seminar, Noraxon

Blood Analysis in the NBA

Posted by Boston Sports Medicine and Performance Group on Mon, Dec 23, 2013 @ 08:12 AM

Inside Tracker


by Gil Blander


A recent article about the Los Angeles Lakers nutrition program has created a firestorm, with different opinions weighing in on the dietary practices of NBA players. Any time blood analysis is brought up, we tend to get many coaches and nutritionists requesting more information about our blood analysis services and our thoughts on the articles in question. As the Chief Science Officer of InsideTracker, I felt compelled to speak my mind on the matter of athletic diets and biomarkers for sports performance. We have a massive database of athletes and have tracked professional athletes for years using our service. Several athletes, including NBA players, have come to us to get the full window inside their bodies in order to perform at their best.


Because we service different sports, we have the responsibility of looking at a wide range of athletes with unique demographics, training plans, and of course diets. Nutritional habits are difficult to change and improve, but this is precisely why sharing blood test results with the athlete can help with compliance. In the recent article, Dwight Howard’s high sugar intake, the nutritionist’s fear of diabetes, and his election to lower his intake were discussed. His intake of candy and sugary drinks was out of control, but he looked like his nickname, Superman, fooling everyone into thinking his nutrition must be fine. Many athletes look amazing on the outside and perform miracles on the court and on the field, but internally their bodies are very much mortal and some are dangerously unhealthy. We love the fact that blood analysis led to behavior modification and eating healthier foods. The questions we are getting now include whether all athletes should be following 25% carbohydrate intake diets, and what happens over a season with different diets such as Paleo and low carbohydrate options. Nutrition is the hardest area to monitor, but we have experience looking at the complete picture — and agents, private coaches, and teams are seeing the results when blood analysis is part of the program.

It was great that Los Angeles decided to do blood analysis, and the biomarker glucose was mentioned. Anticipating that teams and athletes would ask similar questions about biomarkers, I wanted to explain the importance of testosterone and share how carbohydrate factors in.

Testosterone is a hormone that is widely known, for good reason. It’s one of the most important biomarkers to athletes and we track both total testosterone and free testosterone with our Ultimate Panel, soon to be released to the public.  

Continue reading this article by clicking HERE 


See InsiderTracker and other top Performance and Tech companies at the 2014 BSMPG Summer Seminar - May 16&17, 2014.  

Registration opens Jan.1, 2014.



Topics: BSMPG Summer Seminar

Evidence in Motion - Peak Activity

Posted by Boston Sports Medicine and Performance Group on Wed, Dec 18, 2013 @ 07:12 AM





“Muscle activity for the latissimus dorsi during the first pull showed a statistically significant increase when lifting heavy weights.

-S.-K. Chen et al., Journal of Mechanics in Medicine and Biology


A lot of confusion occurs when professionals interpret research and try to apply the findings from it to the clinical or performance setting.  Electromyography terms, such as mean and peak activation create confusion at times, especially when Maximum Voluntary Contraction (MVC) is thrown into the mix. In this article not only will we explain the differences between the three, but show how using surface EMG (SEMG) can unlock more than a few mysteries with training and rehabilitation. Practitioners need to migrate away from interpreting publications to actually implementing their own methodologies. 

Electromyography Terminology Made Simple

A quick synopsis of Electromyography can be summarized into three primary terms to clarify how surface EMG experiments are usually conducted and how practitioners can create their own methodologies internally.

▪      Maximum Voluntary Contraction - MVC is thought of as the maximal work a muscle can do during isometric contraction - voluntarily. Researchers and practitioners use MVC for normalizing comparisons of contractions and training. The MVC value can created in different ways, ranging from just tension of the muscle to very specific joint angles in an all-out isometric exercise like a mid-thigh pull for leg strength.


▪      Mean Activation – The average level of activity of a muscle over a specific period of time is the mean activation. The period of time can be anything the user wants to define, such as an entire repetition of a weighted exercise, an average of these repetitions, or movement patterns such as running, jumping, and throwing.


▪      Peak Activation – The maximal activity value of a muscle over a period of time is called peak activation. Peak activation is very useful for evaluating how intense an action is and comparing peak activation to mean activation is a common approach with EMG interpretation.

Now that those terms are explained let’s take a look using surface EMG to see how popular exercises such as the power clean and snatch can help both rehabilitation and performance enhancement.  



Musculature Contributions in Weightlifting

Sports medicine and sports performance is fusing together as an inverse relationship exists with performance and injury. When performance drops, often a risk to injury can increase if the body is compensating or using poor movement patterns. The traditional uses for weightlifting exercises have been thought of as only lower body power developers, not ways to increase injury resilience. The first pull in power cleans and snatches provide a lot of distraction forces to the shoulder that are great stimulators of the muscles around the joint system. One problem is that when a shoulder is dysfunctional and or the movement is done improperly, athletes miss the benefits of the exercise and increase risk of getting injured.

* Chen, Shen-Kai, et als. The Analysis of Upper Limb Movement and EMG activation During the Snatch Under Various Loading Conditions. Journal of Mechanics in Medicine and Biology, Vol. 13, No 1 (2013)

Using Noraxon’s wireless SEMG, researchers observed how increased loading recruited the latissimus dorsi in the first pull more than any other phase of the lift.  It can be assumed that heavier loads will increase the recruitment values but preserve similar patterns of muscle activity.

From a clinical and performance perspective, the information on musculature recruitment of the upper body suggests using only the lift off part of the exercise, but heavier weights. Additionally, comparing bilaterally is very useful to ensure that asymmetry was reduced, providing an objective way of tracking rehabilitation and return to play.

In the past, only researchers could complete analyses because the equipment and time demands were unavailable to clinicians and performance coaches. Now, however, with more powerful MyoMetric software it is possible, and even reporting and report comparison is fast and comprehensive. With less than a minute of set-up, users can get lab quality data real time, and make decisions that would not otherwise be possible. Many therapists and coaches are using SEMG to create protocols internally that improve patient outcomes and improve performance of their athletes.  


Registration for the 2014 BSMPG Summer Seminar opens on Jan 1, 2014!

Topics: BSMPG Summer Seminar

Evidence in Motion - Optimized Sequence

Posted by Boston Sports Medicine and Performance Group on Wed, Dec 11, 2013 @ 07:12 AM




“Observation-based assessments of movement are a standard component in clinical assessment of patients with non-specific low back pain. While aberrant motion patterns can be detected visually, clinicians are unable to assess underlying neuromuscular strategies during these tests.”

-E. Nelson-Wong et al, Journal of Electromyography and Kinesiology 2013


Clinicians and coaches wish or sometimes believe they have X-Ray eyes and can see muscles “fire” with just the naked eye. While the human eye is an amazing organ, muscle recruitment does not always manifest with visual hints from the patient’s or athlete’s body and EMG is our guide to underlying neuromuscular activity.  An essential part of working with athletes who have experienced chronic or acute injuries is the managing their avoidance of pain, and the neuromuscular changes that compromise outcomes associated with it. Guarding of joints and compensation is talked about in the literature, but the most direct way of solving movement impairments is to see the actions of the body and neuromuscular strategies employed by the athlete relearning after injury. Surface EMG provides clarity to what is happening below the surface, and the information gleaned from its use can accelerate the process of improving performance.

Improving Neuromuscular Recruitment Strategies

Several approaches work with improving movement quality, using Biofeedback makes a mind to muscle connection that bypasses the struggle of learning or changing motion. Finding the right sequence is not easy with athletes who are injured and are in pain, but simple activities can be enhanced with patient and athlete assisted EMG techniques. A simple guideline to ensuring optimized movement is to think of the acronym D.O.T.S.  Below are the four factors in that practitioners should think about in athletic movements when performing return to play strategies.

▪      Duration of Near Peak Activity - Mean and Peak values for EMG are two very powerful metrics that reveal how the muscle is working overtime and how successfully it was engaged. Looking at both the average work during mean activation and the top end range (peak) is an excellent benchmark when devising early post-surgical rehabilitation programs or return to play protocols.

▪      Order of Sequence - A simple path to neuromuscular enhancement is ensuring the right order of muscular recruitment is displayed when an athlete performs a sporting action. Success in joint integrity is highly dependent on the right order of muscle recruitment.

▪      Timing of Activity- Precise timing of activity to muscle groups will determine if a joint is prepared for landing during gait or able to increase the power potential of general movement. Timing and order of muscle firing are not isolated qualities, and are highly dependent on each other for the right interaction.

▪      Silence Period- The select time when muscles are resting is a perfect way to screen for guarding or fears of pain or dysfunction. Athletes will not trust their bodies and resort to protection strategies, causing early fatigue and possible re-injury.


Lumbopelvic Stability Enhancement with EMG - Example of Current Options

Low back pain is a complex and very common problem with athletes and the general population, and most approaches can be enhanced with the use of surface EMG.  Several strategies exist with low back pain and common approaches can be made more effective, starting from the screening process and finishing with a discharge report, all done rapidly and easily with surface EMG. Examples of integrating and pairing EMG with your existing treatment processes are the following:

▪      Dynamic Neuromuscular Stabilization - Neurodevelopmental aspects of motor control are supported with a combined approach, and practitioners can see how reflexive actions are involved in the rehabilitation process. Normally the approach is very qualitative and subjective, but a combined approach with surface EMG can accelerate the rehabilitation and increase patient awareness.

▪      Chronic Pain Therapy - Emotional or Cognitive perception of threats, specifically pain, can be reduced through mindset changes when athletes have confidence in the therapy. Practitioners can see therapeutic milestones of restored norms when athletes are able to remove fear avoidance tendencies and guarding patterns.  Biofeedback with therapist support breaks through mental and physical barriers and normal patterns of activity can be restored or acquired with surface EMG techniques.

▪      Postural Enhancement Training - Proper spinal positioning can be fine-tuned with EMG by either biofeedback of the core and lower extremities or by scoring visual and EMG readings later.  Sport or training postures can enhance performance and reduce injury, making the combined approach effective for both coaches and therapists.

EMG integration is only limited by the imagination and goals of the therapy and training. Adding a simple set of sensors with the process unlocks the doors of better information and is currently improving patient outcomes and athlete performance.


For pre-training or further information visit



Registration for the 2014 BSMPG Summer Seminar opens on Jan 1, 2014!

Topics: BSMPG Summer Seminar

Ben Prentiss joins 2014 BSMPG Summer Seminar Speaker List

Posted by Boston Sports Medicine and Performance Group on Tue, Dec 10, 2013 @ 09:12 AM


BSMPG is proud to announce Ben Prentiss as a speaker at the 2014 BSMPG Summer Seminar - May 16-18th, 2014.  Last year was a sell out and the only difference this year will be us announcing a sell out a month in advance!  This will be one of the greatest performance and therapy seminars of all time!

Seriously, this will sell out - Registration will open January 1st, 2014.  Members of the BSMPG family will receive an opportunity to reserve their seat in advance - stay tuned for details. With speakers and attendees traveling from around the world, this seminar will close in record time.

Be sure to save the date and reserve your hotel room well in advance.

See you in Boston next May!!!  







Strength and conditioning coach Ben Prentiss has been working with professional and Olympic hockey players for over 14 years. Ben's unique training system encompasses speed, strength, power, agility, and flexibility, along with body composition and nutrition. This approach has allowed athletes to achieve their personal goals and reach optimal physical shape. Ben opened his own training facility, Bodytuning, twelve years ago in Darien, CT. Bodytuning, home of Prentiss Hockey Performance, is a 2,000 square foot gym containing unique equipment that has helped produce three Stanley Cup winners, NHL All-Stars, a Hart Trophy winner, and a Hobey Baker finalist .

Over the years Ben has trained professional hockey players on 21 of 30 NHL teams as well as members of the OHL, QMJHL, USHL, AHL, DEL (German Ice Hockey League), NLA (National League A Switzerland), FEL (Finnish Elite League), NCAA, Olympics, and World Championships. Ben's off-season training program has been recommended by coaches, advisors, and agents. Over two dozen media outlets have featured Ben's training techniques with his athletes, including Sports Illustrated, Men's Health, Fox Sports, and The Hockey News. 


Registration opens on January 1st, 2014 - Book your Hotel in Boston Today



Topics: BSMPG Summer Seminar, Ben Prentiss

Evidence in Motion - Coordination Scoring with the Functional Movement Screen

Posted by Boston Sports Medicine and Performance Group on Wed, Dec 4, 2013 @ 07:12 AM



The inclusion of wireless surface EMG and motion capture is growing in popularity with Functional Movement Screen providers. Those using a combined option of surface EMG and movement screening, both basic and individualized, are getting direction from the data beyond what was thought possible. Both conditioning coaches and sports medicine professionals can see reports that identify specific muscle function and add more quantified analysis to testing. Leveraging the speed and simplicity of the Functional Movement Screen, as well as feedback benefits and easy adoption, athletes can get the right interventions with confidence.


Getting More Out of the Hurdle Step


Using the existing criteria provided by Gray Cook, specific movement impairments and muscle function can be scored with surface EMG by placing just a few electrodes to key muscle groups and using motion capture. Within minutes a professional can perform the FMS, score the screen conventionally, and report the details instantly. Using surface EMG, the athlete, the team, or entire facility and collaborators can quantify things like:


(1) Lateral bending of the spine from improper torso recruitment


(2) Lack of dissociation ability during hip flexion with compensation


(3) Hip hiking with low gluteal activity during stance


The above three examples are just the tip of the iceberg, and baseline testing can grade the effectiveness of corrective exercise strategies and show a clear cause and effect with training interventions. Recently national level athletes were screened using the FMS and a combined motion capture and surface EMG solution.



After scoring the FMS with surface EMG, actionable interventions in training and sports medicine can be directed more effectively. For example, an increase of single leg exercises and target muscle strengthening can augment hip abductor recruitment and strength can reduce hip hiking. Marching exercises placed in the movement preparation section of a training session to help learn to “create silence” to flexors of the spine for better dissociation during hip flexion. Finally, stability and relaxation can be improved by incorporating multi planar chops in both kneeling and split positions.



Without immediate, accurate, and motivating biofeedback, corrective strategies are not be as effective and athletes may be slower to show improvement. The live streaming option can accelerate learning, allowing athletes to get visual guidance and assist professionals in pinpointing the root cause of poor movement patterns. The combination approach of using the FMS and surface EMG with motion capture is a rapid and effective methodology for those looking to increase accountability, improve athlete performance, and even prevent recurring injury. Scoring movement and coordination using surface EMG is no longer just for research, it’s a clinical and performance option that is growing in the industry.


Learn more at:


Registration for the 2014 BSMPG Summer Seminar opens on Jan 1, 2014!



Topics: BSMPG Summer Seminar

BSMPG Summer Seminar: Where Leaders Learn

Posted by Boston Sports Medicine and Performance Group on Fri, Nov 22, 2013 @ 07:11 AM



“In music it isn’t the notes themselves that create the music for there are similar groupings of notes in many pieces.  It is the space between the notes or the silence between the notes that creates the differences between musical pieces.”

- Randy Huntington, 2013 BSMPG Summer Seminar Speaker on Training and Recovery



Save the Date: May 16-18, 2014

BSMPG: Where Leaders Learn

Registration Opens January 1, 2014


New Call to actionTMG


Topics: BSMPG Summer Seminar, Ben Prentiss, Boo Schexnayder, Randall Huntington

Evidence in Motion - 5 Principles in Surface Electromyography and Sport

Posted by Boston Sports Medicine and Performance Group on Wed, Nov 20, 2013 @ 07:11 AM





Performance coaches and medical specialists are looking for the best approaches during screening to reduce injuries. With time being a precious and almost endangered resource, coaches and therapists are wanting to gain as much information and data as possible during testing and evaluations.  Professionals at all levels, be they in the clinic or in the field, are looking for the right data, not just more. One of the best ways to improve outcomes in screening is to add surface electromyography (SEMG) to the common tests used for assessment to get deeper and more defined information that goes beyond simple video capture. Most movement screens are scored based on visible criteria and knowledge of biomechanical compensation and neuromuscular recruitment patterns is difficult to discern solely through ocular observation.


Integrating SEMG is easy, provided one knows what to look for. Noraxon’s Clinical DTS SEMG system can capture the direct activity of the body's muscles in action, be it during a movement screen, sporting action, or an actual exercise in the weight room. SEMG helps practitioners evaluate what is going on at rapid speeds or can help validate interventions based on initial screenings. Currently there are five main principles clinics and organizations are finding to be the best practices in regards to complex injuries or effective screening programs. They are:


  • Symmetry Threshold - An athlete's body is not perfectly symmetrical, and some sports are obviously not going to have symmetry such as baseball. While some asymmetry will exist between limbs from adaptation, the lower extremity especially is more predisposed to injury when dissimilarities become pronounced to the point of injury. No true percentage exists, but when the discrepancy becomes consistently greater than 10% risk will increase as the differentiation widens.


  • Coordination Scoring - EMG looks at how efficient an athlete’s muscle recruitment is based on quiet periods, or times that muscles react and show little activation. The ability to efficiently move without various muscle groups being "on" is a cardinal sign of both coordinated movement and reduced risk of injury from proper timing.  Coaches and medical professionals can create unique and individual scoring of efficient movement when surface EMG is used, ranging from gross primitive movements to the most fine motor abilities such as sporting actions.


  • Optimized Sequence - Proper summation of forces will result in a more powerful movement, requiring a precise sequence of firing patterns through the kinetic chain. An error in timing, such as a muscle group in a joint action being too early or too late will increase the risk of injury through overload or reduce the performance of the action. EMG records the muscle firing pattern in milliseconds, meaning a very ballistic action such as throwing, kicking, jumping, and sprinting can be analyzed at speeds the naked eye can't see.


  • Peak Activity – By using EMG to measure maximum muscle recruitment and look at patterns of firing and amplitude changes, training programs can more effectively prepare the body and ensure it is properly rehabilitated, with the appropriate work rest dosages. Higher levels of activity can be signs of successful intervention or improved motor control.  Wireless EMG can capture an array of muscle groups to ensure maximum output is reached.


  • Evidence Based Norms - Ideal models tend to be averages of a larger population with research.  Deviations from the norm contribute to increased risk of injury or a decrease in performance if not carefully managed. At times outliers will create a need for unique analysis to properly assess individual differences, requiring medical and performance specialists to collaborate and support athletes with unique mechanics or styles.


In the next article we will investigate the above five principles of SEMG with case studies and show how without the measurements evaluations in movement screening would be deceiving. Surface EMG reveals what is going on below the surface; information that visually can't be seen must be revealed in order to make more accurate evaluations of athletes in motion.







Save the Date for the 2014 BSMPG Summer Seminar

May 16-18th, 2014

Topics: BSMPG Summer Seminar, Noraxon