Publications by authors named "Takeshi Miyaji"

Article Synopsis
  • Kneeling is important for various religious, ceremonial, and practical activities, yet limited studies have explored its kinematics.
  • This study analyzed 15 healthy young males to understand the movement patterns of the knee during kneeling, using advanced imaging techniques to track knee flexion and extension.
  • Results showed distinct differences in femur movement during knee flexion and extension phases, which could impact the health of knee structures like the meniscus and cartilage.
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Background: Osteoarthritis (OA) of the knee causes changes in knee alignment. A detailed knowledge of knee alignment is needed for correct assessment of the extent of disease progression, determination of treatment strategy, and confirmation of treatment effectiveness. However, deterioration of knee alignment during progression of OA has not been adequately characterized.

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Background: Knee osteoarthritis (OA) gradually reduces knee function and limits activities of daily living with age. However, the progression of abnormal kinematics of the knee in knee OA is unclear.

Aims: This study aimed to clarify the relationship between stage of knee OA and abnormal knee kinematics and to identify a strategy for prevention of knee OA.

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Background: The anterior cruciate ligament-deficient (ACLD) knee requires appropriate treatment for the patient to return to sports. The purpose of this study was to clarify the kinematics of the anterior cruciate ligament-deficient knee in squatting motion before and after double-bundle anterior cruciate ligament reconstruction (DB-ACLR) using a 2D/3D registration technique.

Methods: The subjects of this study were 10 men with confirmed unilateral ACL rupture who underwent DB-ACLR.

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Anterior cruciate ligament (ACL) deficiency increases the risk of early osteoarthritis (OA). Studies of ACL deficient knee kinematics would be important to reveal the disease process and therefore to find mechanisms which would potentially slow OA progression. The purpose of this study was to determine if in vivo kinematics of the anterior cruciate ligament deficient (ACLD) knee during a wide-based squat activity differ from kinematics of the contralateral intact knee.

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