How do mechanics, neural drive and muscle architecture interact in muscles? This project will determine how an individual person’s muscle activity, muscle structure and mechanical properties, and the local mechanical conditions around the muscle interact as muscles move and deform, by using experiments and personalised computational models that can examine these factors and their interactions concurrently. To achieve this, we will develop novel magnetic resonance imaging methods to measure the m ....How do mechanics, neural drive and muscle architecture interact in muscles? This project will determine how an individual person’s muscle activity, muscle structure and mechanical properties, and the local mechanical conditions around the muscle interact as muscles move and deform, by using experiments and personalised computational models that can examine these factors and their interactions concurrently. To achieve this, we will develop novel magnetic resonance imaging methods to measure the mechanical properties of muscles in humans and methods for modelling muscles. As well as answering fundamental scientific questions about muscle function, these new techniques will provide a platform for studying other muscles, and for future development of muscle training methods and technologies to optimise muscle function.Read moreRead less
A kinetic measuring system for assistive devices used in paediatric gait. Each year, a proportion of children are born who suffer from disabilities, which limits their ability to walk efficiently. Gait analysis can identify limiting factors in walking ability, and can assess the clinical outcome of treatments. Children who use assistive devices, such as walking frames, are denied the full benefits of gait analysis due to limitations in current equipment. This project addresses this need through ....A kinetic measuring system for assistive devices used in paediatric gait. Each year, a proportion of children are born who suffer from disabilities, which limits their ability to walk efficiently. Gait analysis can identify limiting factors in walking ability, and can assess the clinical outcome of treatments. Children who use assistive devices, such as walking frames, are denied the full benefits of gait analysis due to limitations in current equipment. This project addresses this need through the development of a portable, load-measuring instrument. When integrated with existing equipment, a comprehensive description of assisted walking gait will be possible. This will lead to greater understanding and improved treatment outcomes for such children.Read moreRead less
A novel multiscale model to investigate mechanical properties of cartilage. This project aims to develop a new multiscale model to investigate anisotropic and inhomogeneous mechanical properties of cartilage. It has been found that the mechanical properties of cartilage highly depend on its microstructures and components. The new model is proposed based on a new constitutive relation in the macroscale and a novel algorithm to obtain local stress distributions in the microscale as well as through ....A novel multiscale model to investigate mechanical properties of cartilage. This project aims to develop a new multiscale model to investigate anisotropic and inhomogeneous mechanical properties of cartilage. It has been found that the mechanical properties of cartilage highly depend on its microstructures and components. The new model is proposed based on a new constitutive relation in the macroscale and a novel algorithm to obtain local stress distributions in the microscale as well as through rigorous experimental validations. This model will be a powerful tool to understand cartilage mechanical properties. It will accelerate the design of mechanically viable artificial cartilage biomaterial, which will provide significant economic benefits and place Australia in the forefront of modelling and biomaterials.Read moreRead less
A Multiscale Modelling Framework for Mechanical Properties of ECM. This project aims to develop a novel hierarchical multi-scale modelling framework to understand factors that influence the mechanical deformation behaviour of the extracellular matrix (ECM) such as cartilage, whose mechanical performance is critical to human wellbeing. Modelling ECM presents significant challenges due to the need to incorporate effects at scales from atomic interactions up to the fibre network in a continuum mode ....A Multiscale Modelling Framework for Mechanical Properties of ECM. This project aims to develop a novel hierarchical multi-scale modelling framework to understand factors that influence the mechanical deformation behaviour of the extracellular matrix (ECM) such as cartilage, whose mechanical performance is critical to human wellbeing. Modelling ECM presents significant challenges due to the need to incorporate effects at scales from atomic interactions up to the fibre network in a continuum model. The proposed framework follows ECM's natural hierarchical structure and integrates efficient models for each key structural scale based on rigorous experimental validations. It is expected to provide a powerful tool for designing successful artificial ECM materials and understanding the mechanisms of the ECM degradation.Read moreRead less
Patient-specific biomechanical modelling for improved treatment of spinal deformity. Spinal deformities negatively affect social acceptance, physical and mental wellbeing in children and adolescents. The direct costs of spinal deformity surgery are approximately $30 million per year in Australia, yet poor treatment outcomes due to post-operative complications incur a much higher cost as patients with persistent pain and disability face a lifetime of dependency and reduced ability to work. The pa ....Patient-specific biomechanical modelling for improved treatment of spinal deformity. Spinal deformities negatively affect social acceptance, physical and mental wellbeing in children and adolescents. The direct costs of spinal deformity surgery are approximately $30 million per year in Australia, yet poor treatment outcomes due to post-operative complications incur a much higher cost as patients with persistent pain and disability face a lifetime of dependency and reduced ability to work. The patient-specific biomechanical modelling techniques developed in this project will reduce complications and improve correction for Australian children who undergo spinal deformity surgery. Better treatment outcomes will ensure quality of life, health and productivity for spinal deformity patients throughout their entire lives.Read moreRead less
The virtual human knee. This project aims to investigate the Virtual Human Knee (VHK) which provides a baseline knowledge about knee mechanics in healthy individuals and a tool for studying knee mechanics in silico. The new knowledge can be used for identifying individuals most at risk for injury, developing solutions for preventing injury and for assessing knee reconstruction and implantation methods. As such, VHK will mitigate the burden of knee injury to Australia and worldwide by progressing ....The virtual human knee. This project aims to investigate the Virtual Human Knee (VHK) which provides a baseline knowledge about knee mechanics in healthy individuals and a tool for studying knee mechanics in silico. The new knowledge can be used for identifying individuals most at risk for injury, developing solutions for preventing injury and for assessing knee reconstruction and implantation methods. As such, VHK will mitigate the burden of knee injury to Australia and worldwide by progressing disciplines including anatomy, bio-mechanics, sport science, rehabilitation, surgery and medical devices.Read moreRead less
Direct measurement of the kinetics of trans-femoral amputee gait during activities of daily living. This project involves the use of a novel technique to accurately measure the loads placed upon the lower limbs of above-knee amputees. Included in the subject group will be a number of amputees fitted with an artificial leg fitted directly into the bone. The ability to monitor a range of activities is possible by the use of a wireless telemetry system. The outcomes of this work will benefit ampute ....Direct measurement of the kinetics of trans-femoral amputee gait during activities of daily living. This project involves the use of a novel technique to accurately measure the loads placed upon the lower limbs of above-knee amputees. Included in the subject group will be a number of amputees fitted with an artificial leg fitted directly into the bone. The ability to monitor a range of activities is possible by the use of a wireless telemetry system. The outcomes of this work will benefit amputees around the world, as well as clinicians and companies who are dedicated to developing significant improvements in the functional abilities of subjects who have suffered amputation.Read moreRead less
Innovative approach to design a new osseointegrated implant for transfemoral amputees with better resistance to fractures. Transfemoral amputees fitted with an osseointegrated implant are experiencing numerous valuable benefits compare to their previous method conventional attachment. However, 40% of them present an early loosening of the implant or ruptures of the abutment. These problems are related to the load regime acting on the fixation system during post-operative rehabilitation and daily ....Innovative approach to design a new osseointegrated implant for transfemoral amputees with better resistance to fractures. Transfemoral amputees fitted with an osseointegrated implant are experiencing numerous valuable benefits compare to their previous method conventional attachment. However, 40% of them present an early loosening of the implant or ruptures of the abutment. These problems are related to the load regime acting on the fixation system during post-operative rehabilitation and daily life activities. In this project, the direct measurement of the actual load applied on the abutment during:
· the load bearing exercises is essential to refine the post- operative rehabilitation program.
· every-day activities is crucial to improve the design and
testing of the implants and abutments.Read moreRead less
Intelligent training (iTraining) for the human Achilles tendon. The project aims to improve understanding of the mechanical environment of the Achilles tendon. The Achilles tendon plays a crucial role in human motor function and is also a structure that is commonly injured and notoriously difficult to treat. A major barrier to improving Achilles tendon function, preventing tendon injury and enhancing tendon repair is a poor understanding of the mechanical environment of the Achilles tendon durin ....Intelligent training (iTraining) for the human Achilles tendon. The project aims to improve understanding of the mechanical environment of the Achilles tendon. The Achilles tendon plays a crucial role in human motor function and is also a structure that is commonly injured and notoriously difficult to treat. A major barrier to improving Achilles tendon function, preventing tendon injury and enhancing tendon repair is a poor understanding of the mechanical environment of the Achilles tendon during training and rehabilitation. The project aims to develop a better understanding of the loading conditions that optimise tendon metabolism. Based on this, it then intends to develop new technologies to estimate the mechanical behaviour of the human Achilles tendon in real time based on integrated use of wearable technology, and new training guidelines that will optimise human tendon adaptation.Read moreRead less
Design and Fabrication of an Engineered Bone Graft System (EBGS) by combining a composite scaffold and growth factor delivery system. The lifetime risk for long bone fractures in Caucasians over the age of 50 is 17% for women and 6% for men. The prevalence of age-related fractures - and with it higher mortality rates due to complications following bone fractures - is therefore bound to increase over the coming decades. There is clearly a great need for therapies that take age-related changes in ....Design and Fabrication of an Engineered Bone Graft System (EBGS) by combining a composite scaffold and growth factor delivery system. The lifetime risk for long bone fractures in Caucasians over the age of 50 is 17% for women and 6% for men. The prevalence of age-related fractures - and with it higher mortality rates due to complications following bone fractures - is therefore bound to increase over the coming decades. There is clearly a great need for therapies that take age-related changes into consideration, in particular the diminishing capacity of bone to heal with age. In an effort to address the therapeutic challenges of providing bone grafts, we aim to mesh two leading-edge technologies to design and fabricate an Engineered Bone Graft System (EBGS) system. Read moreRead less