knee pain is not he problem
The running KNEE:
Caught in the Middle with Few Places to visit and Nowhere to cover up
Injuries to the knee are noticed throughout virtually all sports and many types of age ranges. Ever thought about why the knee is easily the most common basis for visiting an orthopedic surgeon? Moreover, ever thought about how rehabilitation and training programs could better alleviate the stresses placed on the knee? The answers lie in using Applied Functional Science to comprehend the incidents biomechanics of these two �bookend� joints with the knee - the hip and the ankle.
rodilla de corredor
Although the distal femur and the proximal tibia from the primary knee joint, the other ends of the longest bones in your body reveal the reactive nature of the knee. The knee is called a reactor because it responds to drivers previously mentioned and below. These drivers may be ground reaction force, gravity, momentum, hands, feet, or in many cases the eyes. During initial foot contact in upright function, the ankle joint, made up of the distal tibia and talus, produce a chain reaction from the start that directly influences the knee via tibial and fibular motion. Similarly, the hip joint, composed of the proximal femur and also the illium, influences the knee in the top down using the femur. The three-dimensional motions of these two �bookend� joints play a substantial role in determining the magnitude of stress put on the knee. An appropriate squence of events from these two bookend joints enables the knee to effectively dissipate significant forces. However, dysfunction at either joint can leave the knee caught in the centre with few places to visit and nowhere to hide.
rodilla de corredor
A practical example of the squence of events relationship between the ankle and the knee may be illustrated employing a female beach volleyball player. According to its attachment sites, the ACL it's placed under stress during combined knee flexion, abduction (i.e. valgus), and internal rotation. Within this example, since the volleyball player approaches the internet and begins to load her lower extremity to get ready for jumping, she stages in an uneven sand hole which in turn causes her heel to abruptly evert and her talus to plantarflex and adduct. This motion from the talus influences the tibia to internally rotate and abduct. This tibial motion, otherwise properly decelerated, can create excessive knee internal rotation, abduction, and flexion which may directly result in a right ACL tear. However, this motion may be properly controlled and reduce the risk of injury by muscles properly decelerating the tibia and femur. The specific tri-plane action of muscles that influence the knee are too numerous to adequately describe in this post and, therefore, will be discussed in a upcoming newsletter.
A second practical example can illustrate a scenario when dysfunction in the hip may be the underlying cause of patella femoral pain. Studies have confirmed Gary Gray�s long held belief that patella femoral pain is more a track problem (femur) than a train problem (patella). Dr. Chris Powers, et al, summarized that �patellofemoral joint kinematics during weight-bearing conditions might be characterized as the femur rotating beneath the patella.�1 In another study, Dr. Powers, et al, procedes assert that �interventions directed at controlling hip and ankle motions might be warranted and may be considered when treating persons with patellofemoral joint dysfunction.�2
A forty-year-old triathlete with excessive femoral internal rotation throughout the loading phase of gait presents lateral right knee pain while running. His knee pain may be explained through the inability of the hip external rotators, adductors, and hamstring muscles to decelerate the unnecessary femoral motion. The track crashing toward midline prematurely, in essence, causes the train to derail laterally. The signs and symptoms can be found in the knee; however, through use of lower extremity chain reaction biomechanics, one can easily know how the main cause is at the hip.
These examples illustrate a couple of core principles of Applied Functional Science. First, joints in the body move in three planes of movement. Second, function is driven by, among other things, ground reaction force, the environment, and gravity. Third, movement at one joint can provide chain reaction responses at other joints throughout the body. Lastly, function is individualized and task-specific.
Applied Functional Science requires us to know the person, tasks, and goal(s). An intensive understanding of the squence of events biomechanics of most three joints will help in implementing rehabilitation and training programs that ensure that, although still caught at the center, the knee is now offering two powerful friends by its side.
Caught in the Middle with Few Places to visit and Nowhere to cover up
Injuries to the knee are noticed throughout virtually all sports and many types of age ranges. Ever thought about why the knee is easily the most common basis for visiting an orthopedic surgeon? Moreover, ever thought about how rehabilitation and training programs could better alleviate the stresses placed on the knee? The answers lie in using Applied Functional Science to comprehend the incidents biomechanics of these two �bookend� joints with the knee - the hip and the ankle.
rodilla de corredor
Although the distal femur and the proximal tibia from the primary knee joint, the other ends of the longest bones in your body reveal the reactive nature of the knee. The knee is called a reactor because it responds to drivers previously mentioned and below. These drivers may be ground reaction force, gravity, momentum, hands, feet, or in many cases the eyes. During initial foot contact in upright function, the ankle joint, made up of the distal tibia and talus, produce a chain reaction from the start that directly influences the knee via tibial and fibular motion. Similarly, the hip joint, composed of the proximal femur and also the illium, influences the knee in the top down using the femur. The three-dimensional motions of these two �bookend� joints play a substantial role in determining the magnitude of stress put on the knee. An appropriate squence of events from these two bookend joints enables the knee to effectively dissipate significant forces. However, dysfunction at either joint can leave the knee caught in the centre with few places to visit and nowhere to hide.
rodilla de corredor
A practical example of the squence of events relationship between the ankle and the knee may be illustrated employing a female beach volleyball player. According to its attachment sites, the ACL it's placed under stress during combined knee flexion, abduction (i.e. valgus), and internal rotation. Within this example, since the volleyball player approaches the internet and begins to load her lower extremity to get ready for jumping, she stages in an uneven sand hole which in turn causes her heel to abruptly evert and her talus to plantarflex and adduct. This motion from the talus influences the tibia to internally rotate and abduct. This tibial motion, otherwise properly decelerated, can create excessive knee internal rotation, abduction, and flexion which may directly result in a right ACL tear. However, this motion may be properly controlled and reduce the risk of injury by muscles properly decelerating the tibia and femur. The specific tri-plane action of muscles that influence the knee are too numerous to adequately describe in this post and, therefore, will be discussed in a upcoming newsletter.
A second practical example can illustrate a scenario when dysfunction in the hip may be the underlying cause of patella femoral pain. Studies have confirmed Gary Gray�s long held belief that patella femoral pain is more a track problem (femur) than a train problem (patella). Dr. Chris Powers, et al, summarized that �patellofemoral joint kinematics during weight-bearing conditions might be characterized as the femur rotating beneath the patella.�1 In another study, Dr. Powers, et al, procedes assert that �interventions directed at controlling hip and ankle motions might be warranted and may be considered when treating persons with patellofemoral joint dysfunction.�2
A forty-year-old triathlete with excessive femoral internal rotation throughout the loading phase of gait presents lateral right knee pain while running. His knee pain may be explained through the inability of the hip external rotators, adductors, and hamstring muscles to decelerate the unnecessary femoral motion. The track crashing toward midline prematurely, in essence, causes the train to derail laterally. The signs and symptoms can be found in the knee; however, through use of lower extremity chain reaction biomechanics, one can easily know how the main cause is at the hip.
These examples illustrate a couple of core principles of Applied Functional Science. First, joints in the body move in three planes of movement. Second, function is driven by, among other things, ground reaction force, the environment, and gravity. Third, movement at one joint can provide chain reaction responses at other joints throughout the body. Lastly, function is individualized and task-specific.
Applied Functional Science requires us to know the person, tasks, and goal(s). An intensive understanding of the squence of events biomechanics of most three joints will help in implementing rehabilitation and training programs that ensure that, although still caught at the center, the knee is now offering two powerful friends by its side.