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Full-Text Articles in Engineering
Interface Stress In Socket/Residual Limb With Transtibial Prosthetic Suspension Systems During Locomotion On Slopes And Stairs
Faculty of Engineering University of Malaya
OBJECTIVE: This study aimed to compare the effects of different suspension methods on the interface stress inside the prosthetic sockets of transtibial amputees when negotiating ramps and stairs. DESIGN: Three transtibial prostheses, with a pin/lock system, a Seal-In system, and a magnetic suspension system, were created for the participants in a prospective study. Interface stress was measured as the peak pressure by using the F-socket transducers during stairs and ramp negotiation. RESULTS: Twelve individuals with transtibial amputation managed to complete the experiments. During the stair ascent and descent, the greatest peak pressure was observed in the prosthesis with the Seal-In …
Acute Effect Of Static And Dynamic Stretching On Hip Dynamic Range Of Motion During Instep Kicking In Professional Soccer Players, Noor Azuan
Noor Azuan
Amiri-Khorasani, M, Abu Osman, NA, and Yusof, A. Acute effect of static and dynamic stretching on hip dynamic range of motion during instep kicking in professional soccer players. J Strength Cond Res 25(6): 1647-1652, 2011-The purpose of this study was to examine the effects of static and dynamic stretching within a pre-exercise warm-up on hip dynamic range of motion (DROM) during instep kicking in professional soccer players. The kicking motions of dominant legs were captured from 18 professional adult male soccer players (height: 180.38 +/- 7.34 cm; mass: 69.77 +/- 9.73 kg; age: 19.22 +/- 1.83 years) using 4 3-dimensional …
Design And Validation Of A Bi-Axial Loading Bioreactor For Mechanical Stimulation Of Engineered Cartilage, Noor Azuan
Design And Validation Of A Bi-Axial Loading Bioreactor For Mechanical Stimulation Of Engineered Cartilage, Noor Azuan
Noor Azuan
A mechanical-conditioning bioreactor has been developed to provide bi-axial loading to three-dimensional (3D) tissue constructs within a highly controlled environment. The computer-controlled bioreactor is capable of applying axial compressive and shear deformations, individually or simultaneously at various regimes of strain and frequency. The reliability and reproducibility of the system were verified through validation of the spatial and temporal accuracy of platen movement, which was maintained over the operating length of the system. In the presence of actual specimens, the system was verified to be able to deliver precise bi-axial load to the specimens, in which the deformation of every specimen …
The Patellar Tendon Bar! Is It A Necessary Feature?, Noor Azuan
The Patellar Tendon Bar! Is It A Necessary Feature?, Noor Azuan
Noor Azuan
The purpose of this investigation was to vary the load on the patellar tendon bar and to study the subsequent effect this has on the pattern of the pressure distribution at the stump-socket interface. Ten male subjects from the Southern General Hospital in Glasgow, UK participated in this study. Measuring systems utilising strain gauge and electrohydraulic technologies were designed, developed and constructed to enable pressure measurements to be conducted. One transducer, the patellar tendon (PT) transducer, was attached to the patellar tendon bar of the socket such that the patellar tendon bar was capable of being translated by +/- 10 …
Interface Pressure Profile Analysis For Patellar Tendon-Bearing Socket And Hydrostatic Socket, Noor Azuan
Interface Pressure Profile Analysis For Patellar Tendon-Bearing Socket And Hydrostatic Socket, Noor Azuan
Noor Azuan
Conventionally, patellar tendon-bearing (PTB) sockets, which need high dexterity of prosthetist, are widely used. Lack of chartered and experienced prosthetist has often led to painful experience of wearing prosthesis and this will in turn deter the patients to wear the prosthesis, which will further aggravate stump shrinkage. Thus, the hydrostatic socket which demands relatively lower level of fabricating skill is proposed to replace the PTB socket in order to produce the equivalent, if not better, quality of support to the amputee patients. Both sockets' pressure profiles are studied and compared using finite element analysis (FEA) software. Three-dimensional models of both …