Results 211 to 220 of about 186,189 (266)
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Lumbosacral Joint Angles in Children
Journal of Pediatric Orthopaedics, 1991We wished to determine values for the lumbosacral angles in children without spondylolisthesis. Eleven angles were measured on 112 consecutive standing lateral radiographs of children ranging in age from 3 to 18 years. Gender and scoliosis affected only sacral roll and the lumbosacral angle, respectively.
J G, Wright, D, Bell
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Carrying angle of the human elbow joint
Journal of Orthopaedic Research, 1983AbstractPrevious elbow kinematic studies have created some controversy because of conflicting and contradictory results. The lack of consistent results may be traced to the limitations and definitions of the specific measurement techniques, as well as individual variations in the specimens.
K N, An, B F, Morrey, E Y, Chao
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Kinematics of complex joint angles in robotics
Proceedings., IEEE International Conference on Robotics and Automation, 2002A method for using complex numbers in the kinematic solution of robotic manipulators is presented. The inverse kinematics algorithm of a manipulator produces complex joint angles if it is given an end effector location outside its workspace. Although complex joint angles cannot be implemented physically, they can be converted to real numbers through a ...
Eric D. Pohl, Harvey Lipkin
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Discrepancy between the 3 dimensional joint angles and clinical, planar joint angles
Proceedings of the First Joint BMES/EMBS Conference. 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society (Cat. No.99CH37015), 2003The 3-D angles calculated by nonorthogonal joint coordinate system (NJCS) corresponds well with clinical joint angle when a motion occurs mainly one plane as normal human gait. Because the NJCS does not consider the rotational status of distal segment to calculate the rotation angle around proximal body fixed axis, there may be a situation in which the
S.G. Chung, K.W. Lee
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Specificity of joint angle in isometric training
European Journal of Applied Physiology and Occupational Physiology, 1989Six healthy women (21.8 +/- 0.4 y) did isometric strength training of the left plantarflexors at an ankle joint angle of 90 degrees. Training sessions, done 3 times per week for 6 weeks, consisted of 2 sets of ten 5 s maximal voluntary contractions. Prior to and following the training, and in random order, voluntary and evoked isometric contraction ...
T A, Kitai, D G, Sale
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Inertial sensors for assessment of joint angles
Proceedings of the 4th Workshop on ICTs for improving Patients Rehabilitation Research Techniques, 2016In this paper, two approaches for estimating joint angles are presented: the first one uses only an accelerometer to estimate hip and knee angles on static postures, whereas the second approach fuses information from multiple sensors to dynamically calculate leg range of motion.
Susana Carneiro +6 more
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Fatigue of rubber-rubber joints and the effect of joint angle
Journal of Adhesion Science and Technology, 1991Results of our investigation of the fatigue-to-failure of rubber-rubber joints are presented. Two different types of composites-type I with the angle tip of the stiffer matrix embedded in the softer matrix at an angle, and type II having the reverse configuration-were prepared for the study.
Amalendu Sarkar, Anil K. Bhowmick
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Joint Source and Sensor Localization by Angles of Arrival
IEEE Transactions on Signal Processing, 2020Joint source and sensor localization (JSSL) attempts to simultaneously locate the multiple sources and sensors by exploiting the measurements between them. The research of JSSL has been based on time of arrival (TOA) measurements that require synchronization of the sources and sensors.
Trung-Kien Le 0002, K. C. Ho 0001
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The Effect of Knee Joint Angle on Torque Control
Journal of Motor Behavior, 2010The purpose of the author's investigation was to examine the effect of knee joint angle on torque control of the quadriceps muscle group. In all, 12 healthy adults produced maximal voluntary contractions and submaximal torque (15, 30, and 45% MVC [maximal voluntary contraction]) at leg flexion angles of 15 degrees , 30 degrees , 60 degrees , and 90 ...
Jacob J, Sosnoff +2 more
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Joint angle-based EMG amplitude calibration
2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011A calibration method is proposed to compensate for the changes in the surface electromyogram (SEMG) amplitude level of the biceps brachii at different joint angles due to the movement of the muscle bulk under the EMG electrodes for a constant force level.
Javad Hashemi +3 more
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