Search for dissertations about: "Leg position"

Showing result 1 - 5 of 24 swedish dissertations containing the words Leg position.

2. 1. Leg length discrepancy and femoral offset after total hip arthroplasty : clinical and radiological studies

   Author : Sarwar Mahmood; Arkan Sayed-Noor; Sead Crnalic; Gösta Ullmark; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Total hip arthroplasty; leg flength discrepancy; femoral offset; WOMAC; quality of life; complication; radiographic measurements; acetabular cup; inclination; anteversion; Orthopaedics; ortopedi;

   Abstract : Every year, about 1 million patients worldwide and 16000 patients in Sweden undergo total hip arthroplasty (THA). This surgical intervention is considered a successful, safe and cost-effective procedure to regain pain-free mobility and restore hip joint function in patients suffering from severe hip joint disease or trauma. READ MORE

4. 2. Quadruped robot control and variable leg transmissions

   Author : Johan Ingvast; Jan Wikander; Harry Dankowicz; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; walking robot; quadruped; walking; crawl; trot; passively variable transmission; PVT; variable transmission; continuously variable transmission; velocity ratio; torque ratio; Other engineering mechanics; Övrig teknisk mekanik;

   Abstract : The research presented in this thesis regards walking of quadruped robots, and particularly the walking of the Warp1 robot. The motivation for the robot is to provide a platform for autonomous walking in rough terrain. The thesis contains six papers ranging from development tools to actuation of robot legs. READ MORE

5. 3. Control of permanent-magnet synchronous machines in automotive applications

   Author : Oskar Wallmark; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electric drive; electric vehicle; fault tolerance; hybrid electric vehicle; inverter; in-wheel motor; loss minimization; permanent-magnet synchronous machine; phase-locked loop; position estimation; sensorless control; vector control;

   Abstract : This thesis deals with the design and analysis of control system structures for electric drives equipped with permanent-magnet synchronous machines (PMSMs) in automotive applications. Sensorless control, meaning vector control without a mechanical rotor position sensor, is considered and a speed and position estimator of phase-locked loop type is analyzed thoroughly. READ MORE

6. 4. Postural adjustments in sitting position : effect of development, training and brain lesions

   Author : Eva Brogren; Karolinska Institutet; Karolinska Institutet; []
   Keywords : postural adjustments; development; training; cerebral palsy; preterm birth; brain lesions;

   Abstract : The aim of the present study was to investigate the development of postural adjustments, and how this development could be affected by daily training and early brain lesions. To this end postural adjustments were assessed by means of multiple surface EMGs of neck, trunk and leg muscles and kinematics in various well documented groups of children. READ MORE

7. 5. Radiological measurements in total hip arthroplasty

   Author : Bariq Al-Amiry; Arkan Sayed-Noor; Torkel Brismar; Seppo Koskinen; Mats Geijer; Umeå universitet; []
   Keywords : Total hip arthroplasty; leg length discrepancy; femoral offset; WOMAC; quality of life; radiographicmeasurements; Kellgren-Lawrence; duration; acetabular cup; inclination; anteversion; BMI;

   Abstract : Every year, about 1 million patients worldwide and 20000 patients in Sweden undergo total hip arthroplasty (THA). This type of operation is considered a successful, safe and cost-effective procedure to regain mobility and restore hip joint function in patients suffering from severe hip joint disease or trauma. READ MORE