Changes in patellar tendon length during passive knee flexion in the menstrual cycle
نویسندگان
چکیده
منابع مشابه
Changes of the Patellar Tendon Moment arm Length in Different Knee Angles: A Biomechanical in Vivo Study
Patellar tendon moment arm length (PTma) changes at different knee flexion angles have not been determined in invivo studies. We aimed to determine PTma in four different knee angles using Magnetic Resonance Imaging (MRI) topredict in vivo changes in the moment arm length from different knee angles during running.PTma was measured as the perpendicular distance from muscle–tend...
متن کاملThe biomechanics of the human patella during passive knee flexion.
The fundamental objectives of patello-femoral joint biomechanics include the determination of its kinematics and of its dynamics, as a function of given control parameters like knee flexion or applied muscle forces. On the one hand, patellar tracking provides quantitative information about the joint's stability under given loading conditions, whereas patellar force analyses can typically indica...
متن کاملMammographic density changes during the menstrual cycle.
The ability to detect small tumors is impaired in dense mammograms. It has been suggested that the sensitivity of mammograms could be lower in mammograms obtained during the luteal phase of the menstrual cycle. We examined the change in mammographic density from the follicular to the luteal phase of the menstrual cycle in 11 women. Although the average increase in densities was quite small (1.2...
متن کاملPatellar tendon strain is increased at the site of the jumper's knee lesion during knee flexion and tendon loading: results and cadaveric testing of a computational model.
BACKGROUND Patellar tendinopathy (jumper's knee) is characterized by localized tenderness of the patellar tendon at its origin on the inferior pole of the patella and a characteristic increase in signal intensity on magnetic resonance imaging at this location. However, it is unclear why the lesion typically occurs in this area of the patellar tendon as surface strain gauge studies of the patell...
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conclusions an increased lumbar lordosis during the prone knee-flexion test is due to instability in a lumbar spine region. results results demonstrated that there was a statistically significant difference in lumbar lordosis in prone position and after performing the prone knee-flexion test among healthy subjects (p < 0.0001). patients and methods this quasi-experimental study with repeated me...
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ژورنال
عنوان ژورنال: Japanese Journal of Physical Fitness and Sports Medicine
سال: 2018
ISSN: 0039-906X,1881-4751
DOI: 10.7600/jspfsm.67.199