Motor Impairment: Physiology, Pathophysiology And Intervention
Funder
National Health and Medical Research Council
Funding Amount
$2,814,215.00
Summary
It is very common to get Motor Impairments in many diseases and disorders, such as stroke and multiple sclerosis, and even with ageing. These affect our ability to move and function properly. I will use multidisciplinary expertise in basic, applied and clinical science to answer key questions about mechanisms and management of the Motor Impairments of weakness and fatigue, impaired sensation and balance, and muscle contracture. Results will be rapidly applied in clinical populations.
I am an aged care rehabilitation researcher seeking to minimise disability and prevent falls in large numbers of older people. I am particularly interested in the role of exercise in falls and disability prevention.
Neural Mechanisms Associated With Recovery Of Function Following Motor Cortical Lesions
Funder
National Health and Medical Research Council
Funding Amount
$196,415.00
Summary
Damage to movement control areas in the brain early in life (e.g. cerebral palsy) or in adulthood (e.g. stroke, tumours) results in motor weakness and loss of skill; over a period of many months there is gradual recovery of function. The neural mechanisms that are associated with functional reorganization of the brain and motor recovery are not well understood. This project plans to use animal experiments to identify the location of regions in the brain that undergo neural reorganization and com ....Damage to movement control areas in the brain early in life (e.g. cerebral palsy) or in adulthood (e.g. stroke, tumours) results in motor weakness and loss of skill; over a period of many months there is gradual recovery of function. The neural mechanisms that are associated with functional reorganization of the brain and motor recovery are not well understood. This project plans to use animal experiments to identify the location of regions in the brain that undergo neural reorganization and compensate for lost function. Following brain lesions detailed mapping of the motor areas of the brain and a careful study of movement disabilities will be performed. The study will attempt to identify changes in motor maps that indicate neural reorganization and relate these changes to motor recovery. The results of this study will be used in future projects to test training programs, drugs and neural prosthesis on neural reorganization and recovery of function. Eventually the information may be used to direct pharmacological and physiotherapeutic interventions, and motor rehabilitation programs for optimal recovery of function.Read moreRead less
Optimising The Motor Outcomes Of Infants With Cerebral Palsy Using Environmental And Goal Oriented Interventions
Funder
National Health and Medical Research Council
Funding Amount
$116,563.00
Summary
Cerebral palsy is the most common physical disability in childhood. Early diagnosis enables intervention when the brain is developing. Current early intervention has little impact on movement. This research tests the effectiveness of “goal-directed training” and enriched environments by: systematically reviewing literature, piloting the intervention, conducting a clinical trial and interviewing parents. Findings have the potential to improve the outcomes of the 700 new cases diagnosed each year.
Physiological And Neurophysiological Assessment Of Lip And Tongue Function For Speech In Multiple Sclerosis
Funder
National Health and Medical Research Council
Funding Amount
$356,250.00
Summary
Speech difficulties are commonly experienced by people with multiple sclerosis (MS) and can have a devastating, restrictive effect on social interactions, work and education opportunities, ultimately reducing quality of life. Research has shown that a major factor underlying impaired speech in MS is disturbed functioning of the structures that articulate speech, particularly the tongue and lips. In order to effectively treat these speech disturbances, it is imperative that the nature and severit ....Speech difficulties are commonly experienced by people with multiple sclerosis (MS) and can have a devastating, restrictive effect on social interactions, work and education opportunities, ultimately reducing quality of life. Research has shown that a major factor underlying impaired speech in MS is disturbed functioning of the structures that articulate speech, particularly the tongue and lips. In order to effectively treat these speech disturbances, it is imperative that the nature and severity of the tongue and lip impairments be identified, so that specific treatment methods can be employed to directly target those impairments. The present project will use state-of-the-art technology to track and record movements of the tongue and lips during speech and to investigate how well the neural command pathways leading from the brain to the lip and tongue muscles are functioning in persons with MS. The results of the study will direct the development of more specific and effective speech therapy procedures that will empower persons with MS with intelligible speech.Read moreRead less
Changes In Motoneurone And Motor Axon Properties Distal To The Lesion In Stroke
Funder
National Health and Medical Research Council
Funding Amount
$367,530.00
Summary
Following a stroke, adaptive changes occur in spinal cord motoneurones below the level of the stroke, but these are poorly understood. Apart from the exaggeration of spinal reflexes, distal changes have largely been neglected by clinicians. Even the mechanisms responsible for the exaggeration of spinal reflexes are still debated, in part because no single process can account for it. Using novel experimental techniques originally developed to study biophysical properties of human peripheral nerve ....Following a stroke, adaptive changes occur in spinal cord motoneurones below the level of the stroke, but these are poorly understood. Apart from the exaggeration of spinal reflexes, distal changes have largely been neglected by clinicians. Even the mechanisms responsible for the exaggeration of spinal reflexes are still debated, in part because no single process can account for it. Using novel experimental techniques originally developed to study biophysical properties of human peripheral nerves, this project will quantify the changes in excitability that occur in motoneurones and their peripheral extension, the motor axon, and compare these with the findings on the non-paralysed side of the same patients and with healthy matched control subjects. The changes that occur over time will be documented in longitudinal studies. The findings will be correlated with the patient's clinical status, providing insight into the extent to which changes in motoneurone properties drive clinical manifestations such as spasticity. In addition, control studies will provide further insight into whether disturbed transmission in some specific spinal reflex pathways contributes significantly to spasticity. The project is important for understanding the nature of adaptive changes (plasticity) in neural structures following lesions in the central nervous system and will shed light on the remote changes that occur in stroke. The studies are relevant not only for understanding current deficits but also for understanding and perhaps altering outcomes using rehabilitation procedures.Read moreRead less