Athletic 1080 on Vardagspuls on TV4

30 November, 2015

Athletic 1080 was featured on Swedish TV4 on the health and training show Vardagspuls, on Monday November 30th.

 

On the show, Jessica Parnevik – Muth, physical therapist, performs a 1080MAP-analysis of TV host Kristin Kaspersen who wants to get back in the track and start running again.

 

Human function is so integrated and linked that we need tools to figure out how the muscles, joints and systems of the body function as a whole. 1080 Movement Assessment Profile (1080MAP) is a great tool for that. This is a complement to other clinical tests.

 

“Too often, we treat the symptom and not the cause,” Jessica explains. Read full article from Vardagspuls here.

 

See Jessica perform the 1080MAP analysis on Kristin to measure her mobility:

Athletic1080_Vardagspuls

Jessica demonstrates several exercises for back and neck pain:

Jessica_Parnevik-Muth_Vardagspuls

Let’s jump

19 November, 2015

Jumping is not as easy as it seems, especially when one starts to consider how this rather simple task, fundamental to most of us, is accomplished. Jumping is a coordinated sequence of joint movements where the muscles interact to optimize performance. When testing, training or working in rehabilitation, understanding these interactions will allow you to make better decisions in program design.

 

In order to make this analysis of the jump a little simpler, let us assume that we are to perform a vertical jump.

 

bwbasketIn order to get the basics straight, we know, based upon Newton´s third law (action and reaction), that the force a person is applying to the ground creates an equal and opposite directed force. If this force is greater than the weight of the person jumping there will be a net sum of force acting upon the person in the opposite direction.

 

Consequently, the person will accelerate according to Newton´s second law (SF=ma). That is, the acceleration of the jump will vary based on the weight and mass of the person jumping.

 

The question then becomes; how is this vertical force created?

 

This is where it starts to get complicated.

 

Based upon an observation of jumping, it becomes apparent that the linear displacement of a person is dependent upon the rotation of different joints. A bi-sagittal model is good and easy to use for this analysis, since it limits analysis to the sagittal plane.

 

Furthermore, if we simplify the analysis further to consist of only the lower extremity joints (hip, knee and ankle complex) it makes the analysis even “easier”.

 

If we then impose constraints on the system, in this case limiting joint rotations to the sagittal plane, we limit the possible solutions available to a person to solve the task of jumping.

 

Let us also assume that only a vertical displacement of the center of mass of a person is possible. This is where we have to define center of mass. This is not an anatomical structure, but rather a point where all the mass of a system, in this case a person, is located. Center of mass is used for calculations and is based upon the position of different body segments it will change position either within or outside the body. If the center of mass is to move vertically, all joints of the lower extremity have to move in a coordinated manner in order to accomplish the task. Isolated flexion and extension movements of one lower extremity joint, hip, knee or ankle, will move the center of mass not only vertically, but also anterior and posterior.

 

This means that if we are to effectively lower and elevate our center of mass we are dependent upon these three lower extremity joints.

 

Kinematic analysis of a vertical jump show a proximal to distal sagittal joint rotation sequence, which is also associated with a similar sequence of muscle activation patterns (EMG) (van Ingen Schenau, 1989). This proximal to distal sequence of joint rotation will translate the center of mass vertically. Van Ingen Schenau eloquently describes how this happens in his paper from 1989 (van Ingen Schenau, 1989). This is a brief and simple summary of his brilliant findings and descriptions. When hip rotation (extension) can not accelerate the center of mass vertically any more the force generated in the mono-articular hip extensor, such as the gluteus maximus, is transferred to the bi-articular rectus femoris. This happens as the muscle activation of hamstrings decrease and the activation of the rest of the quadriceps increases. Thus, the force generated proximally at the hip is transferred into knee extension. The knee extends and when further knee extension angular acceleration is useless, ankle plantarflexors are activated to control and transfer knee extensor output into a rapid plantarflexion.

 

Why is this important to know?

 

To sum up, human function is interconnected in both joint movements and muscle function for effective movement. This knowledge is important in both training and rehabilitation. Furthermore, one has to keep in mind that this finely coordinated movement pattern is executed by the central nervous system.

 

/Ola Eriksrud

martin_taipale

 

References

van Ingen Schenau, G. J. (1989). From rotation to translation: constraints on multi-joint movements and the unique action of biarticular muscles (Vol. 8, pp. 301-337). (Reprinted from: IN FILE).

Can decreased mobility in the hip effect the calf?

09 November, 2015

We all know that the human body is interconnected and linked. Different joints and regions of the body are interconnected in three-dimensional movement patterns.

 

To figure out how different parts of the body work together and how they compensate for each other we need tools.

 

The test system 1080 Movement Assessment Profile (1080MAP™) is a three-dimensional validated testing system of functional movement that provides powerful insights about performance and asymmetries. The measured value of an individual is normalized and entered into a common database. The database can then be used to easily compare an individual’s results with groups from the same sport, age, gender or time periods.

 

As a physical therapist, I have started to create groups with different diagnosis. I want to find out if people with a certain diagnosis have a limited movement pattern in common. That will help me find the real cause of pain instead of treating the symptom.

 

I created a group of patients with achilles tendonosis.

The limiting movement pattern that many of these patients have in common is when they stand on one leg, for example the left, and toe touch with the right foot. They reach with the left arm posterior lateral overhead, along the R 135 vector (the vector 135 degrees to the right).

jessica
In this movement pattern I found that most of the time the weak link is the hip. The coupled motion in the hip is extension, adduction and internal rotation. The interesting thing is that this is exactly the same coupled motion that the hip is in just before the calf has to go through the push-off phase in gait.

 

So the question is – can limited hip motion effect the calf?
I decided to find out.

When I have a patient with achilles tendonosis I always palpate the achilles tendon to get a value of how much pain they have on a scale from 0 -10. Most of them report as high as 7- 8. I also want to find out if the pain is on the sides of the tendon or on the posterior part of the tendon. The reason why I do this is to find out in what plane of motion the achilles tendon has to compensate. I then do soft tissue treatment to the anterior and lateral part of the same side hip and thigh. I do not treat the calf nor the lower leg and foot.

 

Directly after the treatment I palpated the tendon again and in most cases the pain level is down to level 1-2, sometimes even to 0.

 

How do we explain that?

From a gait biomechanical point of view I can see the connection between the hip and achilles tendon, but how could it disappear so quickly? Can soft tissue work to the muscles and fascia around the hip and thigh affect the calf? I guess it can.

 

I want to point out that this is not scientifically proven. I am just a therapist with a passion for trying to find out more about the integrated and linked human body with the help of our system 1080MAP™, and I’m having great success and a lot of fun along the way. Join us at our next 1080MAP™ Analysis and Treatment course and we will show you more what we do to treat the cause instead of the symptom.

 

/ Jessica Parnevik – Muth

Athletic 1080 on Vardagspuls on TV4

30 November, 2015

Athletic 1080 was featured on Swedish TV4 on the health and training show Vardagspuls, on Monday November 30th.

 

On the show, Jessica Parnevik – Muth, physical therapist, performs a 1080MAP-analysis of TV host Kristin Kaspersen who wants to get back in the track and start running again.

 

Human function is so integrated and linked that we need tools to figure out how the muscles, joints and systems of the body function as a whole. 1080 Movement Assessment Profile (1080MAP) is a great tool for that. This is a complement to other clinical tests.

 

“Too often, we treat the symptom and not the cause,” Jessica explains. Read full article from Vardagspuls here.

 

See Jessica perform the 1080MAP analysis on Kristin to measure her mobility:

Athletic1080_Vardagspuls

Jessica demonstrates several exercises for back and neck pain:

Jessica_Parnevik-Muth_Vardagspuls

Let’s jump

19 November, 2015

Jumping is not as easy as it seems, especially when one starts to consider how this rather simple task, fundamental to most of us, is accomplished. Jumping is a coordinated sequence of joint movements where the muscles interact to optimize performance. When testing, training or working in rehabilitation, understanding these interactions will allow you to make better decisions in program design.

 

In order to make this analysis of the jump a little simpler, let us assume that we are to perform a vertical jump.

 

bwbasketIn order to get the basics straight, we know, based upon Newton´s third law (action and reaction), that the force a person is applying to the ground creates an equal and opposite directed force. If this force is greater than the weight of the person jumping there will be a net sum of force acting upon the person in the opposite direction.

 

Consequently, the person will accelerate according to Newton´s second law (SF=ma). That is, the acceleration of the jump will vary based on the weight and mass of the person jumping.

 

The question then becomes; how is this vertical force created?

 

This is where it starts to get complicated.

 

Based upon an observation of jumping, it becomes apparent that the linear displacement of a person is dependent upon the rotation of different joints. A bi-sagittal model is good and easy to use for this analysis, since it limits analysis to the sagittal plane.

 

Furthermore, if we simplify the analysis further to consist of only the lower extremity joints (hip, knee and ankle complex) it makes the analysis even “easier”.

 

If we then impose constraints on the system, in this case limiting joint rotations to the sagittal plane, we limit the possible solutions available to a person to solve the task of jumping.

 

Let us also assume that only a vertical displacement of the center of mass of a person is possible. This is where we have to define center of mass. This is not an anatomical structure, but rather a point where all the mass of a system, in this case a person, is located. Center of mass is used for calculations and is based upon the position of different body segments it will change position either within or outside the body. If the center of mass is to move vertically, all joints of the lower extremity have to move in a coordinated manner in order to accomplish the task. Isolated flexion and extension movements of one lower extremity joint, hip, knee or ankle, will move the center of mass not only vertically, but also anterior and posterior.

 

This means that if we are to effectively lower and elevate our center of mass we are dependent upon these three lower extremity joints.

 

Kinematic analysis of a vertical jump show a proximal to distal sagittal joint rotation sequence, which is also associated with a similar sequence of muscle activation patterns (EMG) (van Ingen Schenau, 1989). This proximal to distal sequence of joint rotation will translate the center of mass vertically. Van Ingen Schenau eloquently describes how this happens in his paper from 1989 (van Ingen Schenau, 1989). This is a brief and simple summary of his brilliant findings and descriptions. When hip rotation (extension) can not accelerate the center of mass vertically any more the force generated in the mono-articular hip extensor, such as the gluteus maximus, is transferred to the bi-articular rectus femoris. This happens as the muscle activation of hamstrings decrease and the activation of the rest of the quadriceps increases. Thus, the force generated proximally at the hip is transferred into knee extension. The knee extends and when further knee extension angular acceleration is useless, ankle plantarflexors are activated to control and transfer knee extensor output into a rapid plantarflexion.

 

Why is this important to know?

 

To sum up, human function is interconnected in both joint movements and muscle function for effective movement. This knowledge is important in both training and rehabilitation. Furthermore, one has to keep in mind that this finely coordinated movement pattern is executed by the central nervous system.

 

/Ola Eriksrud

martin_taipale

 

References

van Ingen Schenau, G. J. (1989). From rotation to translation: constraints on multi-joint movements and the unique action of biarticular muscles (Vol. 8, pp. 301-337). (Reprinted from: IN FILE).

Can decreased mobility in the hip effect the calf?

09 November, 2015

We all know that the human body is interconnected and linked. Different joints and regions of the body are interconnected in three-dimensional movement patterns.

 

To figure out how different parts of the body work together and how they compensate for each other we need tools.

 

The test system 1080 Movement Assessment Profile (1080MAP™) is a three-dimensional validated testing system of functional movement that provides powerful insights about performance and asymmetries. The measured value of an individual is normalized and entered into a common database. The database can then be used to easily compare an individual’s results with groups from the same sport, age, gender or time periods.

 

As a physical therapist, I have started to create groups with different diagnosis. I want to find out if people with a certain diagnosis have a limited movement pattern in common. That will help me find the real cause of pain instead of treating the symptom.

 

I created a group of patients with achilles tendonosis.

The limiting movement pattern that many of these patients have in common is when they stand on one leg, for example the left, and toe touch with the right foot. They reach with the left arm posterior lateral overhead, along the R 135 vector (the vector 135 degrees to the right).

jessica
In this movement pattern I found that most of the time the weak link is the hip. The coupled motion in the hip is extension, adduction and internal rotation. The interesting thing is that this is exactly the same coupled motion that the hip is in just before the calf has to go through the push-off phase in gait.

 

So the question is – can limited hip motion effect the calf?
I decided to find out.

When I have a patient with achilles tendonosis I always palpate the achilles tendon to get a value of how much pain they have on a scale from 0 -10. Most of them report as high as 7- 8. I also want to find out if the pain is on the sides of the tendon or on the posterior part of the tendon. The reason why I do this is to find out in what plane of motion the achilles tendon has to compensate. I then do soft tissue treatment to the anterior and lateral part of the same side hip and thigh. I do not treat the calf nor the lower leg and foot.

 

Directly after the treatment I palpated the tendon again and in most cases the pain level is down to level 1-2, sometimes even to 0.

 

How do we explain that?

From a gait biomechanical point of view I can see the connection between the hip and achilles tendon, but how could it disappear so quickly? Can soft tissue work to the muscles and fascia around the hip and thigh affect the calf? I guess it can.

 

I want to point out that this is not scientifically proven. I am just a therapist with a passion for trying to find out more about the integrated and linked human body with the help of our system 1080MAP™, and I’m having great success and a lot of fun along the way. Join us at our next 1080MAP™ Analysis and Treatment course and we will show you more what we do to treat the cause instead of the symptom.

 

/ Jessica Parnevik – Muth

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