- Lower Extremity Biomechanics and Pathologies
- Sports injuries and prevention
- Cannabis and Cannabinoid Research
- Shoulder Injury and Treatment
- Balance, Gait, and Falls Prevention
- Children's Physical and Motor Development
- Sleep and Wakefulness Research
- Cardiac Arrest and Resuscitation
- Muscle activation and electromyography studies
- COVID-19 and healthcare impacts
- Climate Change and Health Impacts
- Diabetic Foot Ulcer Assessment and Management
- COVID-19 Clinical Research Studies
- Cerebral Palsy and Movement Disorders
- Traumatic Brain Injury Research
- Foot and Ankle Surgery
- Winter Sports Injuries and Performance
- Asthma and respiratory diseases
- Knee injuries and reconstruction techniques
- Allergic Rhinitis and Sensitization
- Respiratory Support and Mechanisms
- Automotive and Human Injury Biomechanics
- Shoulder and Clavicle Injuries
- Poisoning and overdose treatments
- Forensic Toxicology and Drug Analysis
Massey University
2014-2024
Sports Surgery Clinic
2023-2024
Medical Research Institute of New Zealand
2020-2024
Wellington Hospital
2022
There has been considerable international variation in mortality during the COVID-19 pandemic. The objective of this study was to investigate differences between registered as due and excess all-cause reported countries worldwide pandemic.Ecological analysis 22 compared 5-year historical mortality, expected (calculated plus deaths attributed COVID-19). Data available from first week January 2020 that most recently were analysed.Compared preceding 5 years, there an 716 616 deaths, which 64.3%...
Background: When delivering high-flow nasal cannula (HFNC) therapy, automated oxygen titration increases time spent within a target SpO2 range compared with manually adjusted titration. This trial explored if this benefit is also achieved when CPAP or noninvasive ventilation (NIV) used. Methods: open label exploratory study randomized participants to manual using single respiratory support device capable of HFNC, CPAP, and NIV. Participants were hospital in-patients requiring supplemental...
Few studies have investigated detailed 3-dimensional lower extremity kinematics during baseball pitching in adolescent athletes extended play. Changes these parameters may affect performance outcomes.To investigate whether pitchers experience changes and event timing a simulated game-length bout.Descriptive laboratory study.Twelve male (aged 14-16 years) threw 6 sets of 15 fastball pitches from an artificial mound to target at regulation distance. Joint angles angular velocities the hip,...
This study investigated differences in lower extremity joint kinematics and kinetics between barefoot shod walking children (n = 13, 10.2 ± 1.4 years). Three-dimensional kinematic data ground reaction forces were collected simultaneously during five minutes of on an instrumented treadmill (0.96 0.14 m s−1). Maximal displacements, maximal moments, angular impulse mechanical energy at the hip, knee ankle analysed. Joint kinetic primarily occurred weight acceptance propulsion. Shod elicited...
Horizontal deceleration technique is an underpinning factor to musculoskeletal injury risk and performance in multidirectional sport. This study primarily assessed within- between-session reliability of biomechanical performance-based aspects a horizontal secondarily investigated the effects limb dominance on reliability. Fifteen participants completed four decelerations each leg during test retest sessions. A three-dimensional motion analysis system was used collect kinetic kinematic data....
Background Closed-loop oxygen control systems automatically adjust the fraction of inspired (FiO 2 ) to maintain saturation (SpO within a predetermined target range. Their performance with low and high-flow therapies, but not non-invasive ventilation, has been established. We compared effect automated on achieving maintaining SpO range nasal high flow (NHF), bilevel positive airway pressure (bilevel) continuous (CPAP), in stable hypoxaemic patients chronic cardiorespiratory disease. Methods...
To investigate whether youth and adults can perceive differences in exertion between walking running at speeds near the preferred transition speed (PTS) if there are age-related these perceptions.A total of 49 (10-12 y, n = 21; 13-14 10; 15-17 18) 13 (19-29 y) completed a walk-to-run protocol to determine PTS peak oxygen uptake. The participants walked ran on treadmill 5 (PTS-0.28 m·s-1, PTS-0.14 PTS, PTS+0.14 PTS+0.28 m·s-1) rated perceived using OMNI Perceived Exertion (OMNI-RPE) scale....
Footwear affects the biomechanics of children's gait; however, there has been less research addressing energetics walking with and without shoes. This study investigated effects barefoot shod on metabolic parameters in children. 25 children (9.7±1.4 years) walked at a self-selected pace for 5 min an instrumented treadmill under 2 footwear conditions (barefoot, running shoe). Vertical oscillations centre mass were calculated from ground reaction forces. Expired gases collected last minute...
Background: Hamstring strain injuries are highly prevalent, particularly when the hamstrings in a lengthened position; however, monitoring strength deficits and fatigue throughout season is currently difficult due to lack of practical, reliable tests that do not cause undue fatigue. Objective: The aim current study was investigate intersession reliability novel 90°hip: 40°knee isometric hamstring test (IHT) supine position. Methodology: This prospective, observational cohort conducted on...