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Physiology And Pathophysiology Of Trunk Control Mechanisms
Funder
National Health and Medical Research Council
Funding Amount
$168,958.00
Summary
The overall aim of this series of experiments is to understand how the spine is controlled and how this changes in disease. Altered control has been identified in people with low back pain, yet we still know very little about the normal mechanisms for protection and support of the spine. Back pain is a common affliction that affects about 5% of Australians each year and is the most common and expensive work-related injury in western society. An understanding of normal control and the mechanism o ....The overall aim of this series of experiments is to understand how the spine is controlled and how this changes in disease. Altered control has been identified in people with low back pain, yet we still know very little about the normal mechanisms for protection and support of the spine. Back pain is a common affliction that affects about 5% of Australians each year and is the most common and expensive work-related injury in western society. An understanding of normal control and the mechanism of dysfunction is critical for identification of risk factors and development of strategies for rehabilitation and prevention. The experiments are divided into two series. The first series addresses normal spinal control. The questions to be asked deal with how the brain copes with the challenge of using trunk muscles for breathing and spinal control at the same time, how the activity of the trunk muscles is affected by input from sensory receptors in the joints, ligaments and muscles of the spine, and whether intra-abdominal pressure can support the trunk. The second series deals with clinical populations. The first aim is to identify whether people with respiratory diseases use trunk muscles for spinal control and breathing at the same time. If they cannot, we predict that they will be more prone to low back pain. We will test this in a large study of incidence of low back pain in people with and without respiratory disease. The second study will investigate the pelvic floor muscles which are important for continence and assist with spinal control. We will investigate whether people with incontinence have poor spinal control and whether this leads to back pain. The final experiment will identify whether people with low back pain interpret sensory information from the spine differently. By answering these questions we hope to intervene in the enormous personal, social and economic consequences of LBP which affects between 60-90% of the population at some stage in their life.Read moreRead less
Noradrenaline Transporter Dysfunction In Neural Circulatory Disorders: Clinical, Molecular And Therapeutic Implications
Funder
National Health and Medical Research Council
Funding Amount
$510,870.00
Summary
We will investigate the clinical relevance of noradrenaline transporter (NET) dysfunction and its molecular and genetic regulation in (1) essential hypertension, (2) postural tachycardia syndrome where the heart rate increases abnormally when the patient assumes an upright position and (3) syncope where subjects experience recurrent blackouts. In a therapeutic approach, we will explore whether NET inhibition can reduce the number of episodes and alleviate the symptoms associated with syncope.
Understanding Health Professionals' Infection Control Practices In The Acute Care Setting
Funder
National Health and Medical Research Council
Funding Amount
$151,196.00
Summary
Health-care acquired infections have a considerable personal, social and economic impact in Australia, and better understanding of the causes of these infections is necessary. Failure by health professionals to follow infection control recommendations has important consequences in terms of the personal risk of acquiring an infection as well as the risk of infection transmission to patients. In Australia surgical site infections alone are estimated to cost as much as 268 million dollars a year. H ....Health-care acquired infections have a considerable personal, social and economic impact in Australia, and better understanding of the causes of these infections is necessary. Failure by health professionals to follow infection control recommendations has important consequences in terms of the personal risk of acquiring an infection as well as the risk of infection transmission to patients. In Australia surgical site infections alone are estimated to cost as much as 268 million dollars a year. Health-care acquired infections are associated with poorer health outcomes, a greater probability of prolonged hospital stays, greater re-hospitalisation rates, and significant reductions in health related quality of life. In this qualitative study we will use grounded theory and a comparative analysis strategy. We will initially identify participants sampled from health professionals employed in the acute care setting at a major teaching hospital in Perth, Western Australia. We will seek representation of a range of health professionals recruited from multiple occupational groups, including doctors, nurses and paramedical staff who have direct patient contact in the study sample. Sampling will also aim to recruit participants from a number of different acute care areas within the hospital, and staff with a range of individual characteristics, experiences and beliefs. We will interview a range of health care workers in order to explore their experiences of engagement in infection control practices and the factors influencing these experiences. We aim to develop a substantive theory that explains health professionals' engagement in high-risk infection control practices in the acute care setting. This will have implications for current understandings of the factors influencing adherence to recommended infection control practices, current theoretical perspectives which guide infection control practice, and strategies used to promote compliance with recommended practices.Read moreRead less
A Randomised Controlled Trial To Prevent Primigravid Excessive Gestational Weight Gain And Postpartum Weight Retention
Funder
National Health and Medical Research Council
Funding Amount
$505,412.00
Summary
Excessive weight gain in pregnancy and weight retention 12 months post birth place women at a greater risk for the development of overweight and obesity. This study responds to the urgent need to design effective interventions to prevent excessive weight gain in pregnancy and postpartum weight retention. A health coaching intervention has been designed to address this urgent need, and its effectiveness will be evaluated in a randomised controlled trial with first time pregnant women.
How Does The Central Respiratory Generator Amplify Sympathetic Activity In Hypertension?
Funder
National Health and Medical Research Council
Funding Amount
$290,113.00
Summary
High blood pressure causes many life-threatening cardiovascular diseases, including heart failure and stroke. The cause of most high blood pressure is not known. Using an animal model of high blood pressure we have shown that an interaction, in the brain, between the nerve pathways that generate respiratory activity and regulate blood pressure is altered. This occurs early in life and our evidence strongly suggests this may be a cause of high blood pressure.