Interaction between active and passive knee stabilizers during level walking
Autor: | O. D. Schipplein, Thomas P. Andriacchi |
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Rok vydání: | 1991 |
Předmět: |
musculoskeletal diseases
Adult Male medicine.medical_specialty Lateral stability Knee Joint Genu varum Gait (human) Physical medicine and rehabilitation medicine Humans Orthopedics and Sports Medicine Knee Patient group Gait Muscle force Aged business.industry Muscles Biomechanics Middle Aged musculoskeletal system Normal gait Physical therapy Female medicine.symptom business human activities Locomotion Muscle Contraction |
Zdroj: | Journal of orthopaedic research : official publication of the Orthopaedic Research Society. 9(1) |
ISSN: | 0736-0266 |
Popis: | The gait of normal subjects and patients with varus deformities at the knee was studied by analyzing the interaction between the dynamic (muscular) and passive (ligamentous) restraints affecting lateral stability of the knee. A statistically determinant model predicted that the midstance-phase adducting moment during normal gait would cause lateral knee joint opening if either antagonistic muscle force and/or pretension in the lateral soft tissues were not present at the knee. The patient group tended to compensate for a high midstance-phase adducting moment by walking with a style of gait that demanded more muscle force (greater flexion-extension moments). This walking style reduced the chance of lateral joint opening. It can be speculated that this style of gait would help to maintain equilibrium at the knee. The higher muscle force would aid in resisting the adducting moment, keeping the joint closed laterally and thus increasing the stability of the knee. |
Databáze: | OpenAIRE |
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