D. Macdonald

ORCID: 0000-0003-2638-0788
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About
Contact & Profiles
Research Areas
  • Musculoskeletal pain and rehabilitation
  • Foot and Ankle Surgery
  • Spine and Intervertebral Disc Pathology
  • Tendon Structure and Treatment
  • Sports injuries and prevention
  • Orthopedic Surgery and Rehabilitation
  • Lower Extremity Biomechanics and Pathologies
  • Myofascial pain diagnosis and treatment
  • Balance, Gait, and Falls Prevention
  • Physical Education and Pedagogy
  • Total Knee Arthroplasty Outcomes
  • Muscle activation and electromyography studies
  • Peripheral Nerve Disorders
  • Sports Performance and Training
  • Shoulder Injury and Treatment
  • Orthopaedic implants and arthroplasty
  • Occupational Health and Performance
  • Evaluation and Performance Assessment
  • Medical Imaging and Analysis
  • Cerebral Palsy and Movement Disorders
  • HIV, Drug Use, Sexual Risk
  • Botulinum Toxin and Related Neurological Disorders
  • Motor Control and Adaptation
  • Musculoskeletal synovial abnormalities and treatments
  • Hip disorders and treatments

The University of Queensland
2011-2023

Bank of England
2023

Griffith University
2016-2023

University of Edinburgh
2008-2017

Bloomberg (United States)
2017

University of Toronto
2004-2017

Leukemia & Lymphoma Society of Canada
2017

University Health Network
2017

National Health and Medical Research Council
2009-2016

University of Wollongong
2008-2009

Approximately thirty-four percent of people who experience acute low back pain (LBP) will have recurrent episodes. It remains unclear why some recurrences and others do not, but one possible cause is a loss normal control the muscles. We investigated whether short long fibres deep muscles was different in with unilateral LBP from healthy participants. Recurrent patients, were symptom free during testing, group volunteers, participated. Intramuscular surface electrodes recorded...

10.1016/j.pain.2008.12.002 article EN Pain 2009-01-31

Abstract Background Substance use among populations displaced by conflict is a neglected area of public health. Alcohol, khat, benzodiazepine, opiate, and other substance have been documented range populations, with wide-reaching health social impacts. Changing agendas in humanitarian response-including increased prominence mental chronic illness-have so far failed to be translated into meaningful interventions for use. Methods Studies were conducted from 2006 2008 six different settings...

10.1186/1752-1505-5-1 article EN cc-by Conflict and Health 2011-02-11

Abstract Background Movement changes in pain. Unlike the somewhat stereotypical response of limb muscles to pain, trunk muscle responses are highly variable when challenged by pain that region. This has led many question existence a common underlying theory explain adaptation. Here, we tested hypotheses (1) adaptation activation acute leads enhanced spine stability, despite variation pattern changes; and (2) individuals would use similar ‘signature’ for tasks with different mechanical...

10.1002/j.1532-2149.2013.00286.x article EN European Journal of Pain 2013-01-25

Cross-sectional design.To compare lumbar multifidus electromyographic activity (EMG) during predictable and unpredictable trunk loading between people with without recurrent unilateral low back pain (LBP) symptom remission.Unpredictable is a common injury mechanism for LBP. Paraspinal muscle responses to differ history of LBP, but whether the response differs specific regions within paraspinal muscles unclear. Differences deep (DM) superficial fibers (SM) have been implicated in other tasks....

10.1097/brs.0b013e3181bc98f1 article EN Spine 2010-03-25

People with a history of low back pain (LBP) are at high risk to encounter additional LBP episodes. During remission, altered trunk muscle control has been suggested negatively impact spinal health. As sudden onset is commonly reported during flexion, the aim current study investigate whether dynamic recruitment in remission. Eleven people remission recurrent and 14 free controls performed cued flexion loaded unloaded condition. Electromyographic activity was recorded from paraspinal (lumbar...

10.1016/j.jelekin.2012.09.003 article EN publisher-specific-oa Journal of Electromyography and Kinesiology 2012-10-15

In today′s organizational environment, the ability to manage positive relationships between organizations, as well those within is becoming increasingly important. Based on work being carried out in Glasgow, explores some of issues involved achieving collaborative advantage. Focuses, particular, which arise when collaboration over strategy, rather than simply particular projects. Argues that there a fine balance be struck gaining benefits collaborating and making situation worse. Identifies...

10.1108/00251749210013104 article EN Management Decision 1992-03-01

Study Design Cross-sectional design. Objectives To investigate lumbar multifidus (LM) thickness differences, using ultrasound imaging in people during remission from recurrent low back pain (LBP) and healthy participants, the following lower extremity movements: (1) active straight leg raise (ASLR), (2) crook-lying (CLR), (3) prone (PSLR). Background ASLR, CLR, PSLR are used clinically to challenge ability of trunk muscles control spinal motion with LBP, it is believed that decreased LM...

10.2519/jospt.2011.3410 article EN Journal of Orthopaedic and Sports Physical Therapy 2011-03-01

Abstract Background Chronic ankle conditions affect approximately 20% of Australian adults. Although there is a plethora research on chronic hip and knee conditions, limited understanding the impact problems. Thus, significance not clear. The aim this study was to compare self‐reported function, disability, instability, physical activity quality life (QoL) between adults with without symptoms. A secondary explore factors associated QoL. Method Individuals symptoms pain stiffness (symptomatic...

10.1186/s13047-020-00432-w article EN cc-by Journal of Foot and Ankle Research 2020-01-01

Objective To compare physical and patient-reported outcomes between (1) individuals with symptomatic radiographic ankle osteoarthritis (OA) asymptomatic individuals, (2) without OA. Design Cross-sectional study. Methods Ninety-six volunteers (31 OA, 41 24 OA) completed a survey on quality of life (QoL), function, pain, disability, kinesiophobia, instability, activity, undertook assessments muscle strength, heel-raise endurance, dorsiflexion range motion (ROM), ambulatory function. Results...

10.2519/jospt.2020.9376 article EN Journal of Orthopaedic and Sports Physical Therapy 2020-12-01

Lateral epicondylalgia (LE) is associated with a reduced wrist extensor muscle activity and altered biomechanics. This study compared the coordination between forearm muscles during gripping in individuals LE pain-free controls. Intramuscular electrodes recorded myoelectric from carpi radialis brevis/longus (ECRB/ECRL), digitorum communis (EDC), flexor superficialis/profundus (FDS/FDP), (FCR), bilaterally, 15 participants unilateral Participants performed task at 20% maximum force four arm...

10.1111/sms.12584 article EN Scandinavian Journal of Medicine and Science in Sports 2015-12-01

More widespread central clearing could enhance dealers’ ability to intermediate financial markets by increasing the netting of buy and sell trades, thereby reducing impact trading on balance sheets capital ratios. Drawing trade‑level regulatory data, we study benefits for UK dealers if comprehensive had been introduced cash gilt repo ahead March 2020 dash (DFC) crisis. For market, estimate that policy would have reduced exposures 40% and, hence, boosted their aggregate leverage ratio 3 basis points.

10.2139/ssrn.4488256 article EN SSRN Electronic Journal 2023-01-01

Background: Patient engagement in research may lead to better-designed studies and improved health outcomes. The objectives of this study were identify the priorities older adults with cancer (OAWCs) their caregivers examine how engage these individuals teams what supports are needed. Methods: We conducted 3 public meetings 7 focus groups delineate needed facilitate integration OAWCs on teams. Results: A total 33 19 attended a meeting 27 17 participated group. Most had never before. Three...

10.6004/jnccn.2017.0159 article EN Journal of the National Comprehensive Cancer Network 2017-10-01

The move toward online course facilitation in tertiary education has the intent of providing at any time place to person. However, advent blended learning and e-learning innovations ostracised, marginalised or ignored those who cannot afford are unable access latest hardware software take advantage these opportunities. Web 2.0 age is an era assumptions: assumptions participation, literacy democracy. Yet such inferences based on need for high-speed Internet connections, computers standard...

10.2304/elea.2008.5.3.275 article EN E-Learning and Digital Media 2008-01-01

Hypothesis: Interpretations of kneeling are different in cultures.Background: Kneeling is best defined as a position where at least one knee contact with some part the environment (usually ground), and body weight being supported predominantly through knee(s).What meant by "kneeling" remarkably cultures because diverse patterns kneeling, such upright on knee, two knees, high flexed patterns.Methods: One group (40 Muslims) normal individuals who attended their prayers mosque another Roman...

10.4172/2161-0533.1000240 article EN cc-by Orthopedic & Muscular System 2017-01-01
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