A5074503714- Sports Performance and Training
- Sports injuries and prevention
- Exercise and Physiological Responses
- Muscle metabolism and nutrition
- Knee injuries and reconstruction techniques
- Biochemical effects in animals
- Lower Extremity Biomechanics and Pathologies
- Muscle activation and electromyography studies
- Osteoarthritis Treatment and Mechanisms
- Total Knee Arthroplasty Outcomes
- Tendon Structure and Treatment
- Genetics and Physical Performance
- Scoliosis diagnosis and treatment
- Shoulder Injury and Treatment
- Spine and Intervertebral Disc Pathology
- Orthopedic Surgery and Rehabilitation
- Peripheral Nerve Disorders
- Spinal Fractures and Fixation Techniques
- Advanced Neuroimaging Techniques and Applications
- Cardiovascular Effects of Exercise
- Botulinum Toxin and Related Neurological Disorders
- Hip disorders and treatments
- Anatomy and Medical Technology
- Surgical Simulation and Training
- Cervical and Thoracic Myelopathy
Griffith University
2016-2024
Gold Coast Health
2016-2023
Ghent University
2021
Queensland Academy of Sport
2021
British Columbia Children's Hospital
1994
Background: The hamstring tendon graft used in anterior cruciate ligament (ACL) reconstruction has been shown to lead changes the semitendinosus and gracilis musculature. Hypothesis: We hypothesized that (1) loss of donor muscle size would significantly correlate with knee strength deficits, (2) be greater for muscles do not experience regeneration, (3) morphological adaptations also evident nondonor muscles. Study Design: Cross-sectional study; Level evidence, 3. Methods: Twenty...
Our work combines medical imaging and electromyogram-informed neuromusculoskeletal modeling data to estimate free Achilles tendon strain during selected rehabilitation, locomotor, jumping, landing tasks in trained middle-distance runners. These may potentially be used inform training rehabilitation maximize anabolic remodeling.
The aim of this study was to identify markers training stress and characteristics middle-distance runners related the incidence overreaching following overload training. Twenty-four highly trained [n = 16 male, peak oxygen uptake (V̇o2peak) 73.3 (4.3) mL·kg·min-1; n 8 female, V̇o2peak 63.2 (3.4) mL·kg·min-1] completed 3 wk normal (NormTr), high-volume (HVTr; a 10%, 20%, 30% increase in volume each successive week from NormTr), 1 taper (TapTr; 55% exponential reduction HVTr 3). Before...
The human semitendinosus muscle is characterized by a tendinous inscription separating proximal and distal neuromuscular compartments. As each compartment innervated separate nerve branches, potential exists for independent operation control of However, the morphology function have not been thoroughly examined in an adult population. Further, tendon typically harvested use anterior cruciate ligament reconstruction surgery, which induces long-term morphological changes to muscle-tendon unit....
Tendon geometry and tissue properties are important determinants of tendon function injury risk altered in response to ageing, disease, physical activity levels. The purpose this study was compare free Achilles mechanical between trained elite/sub-elite middle-distance runners a healthy control group. Magnetic resonance imaging (MRI) used measure volume, length, average cross-sectional area (CSA), regional CSA, moment arm, T2* relaxation time at rest, while freehand three-dimensional...
This study aimed to identify the relationships between lower limb muscle characteristics and mechanical variables derived from vertical (jumping) horizontal (sprinting) force-velocity-power (FVP) profiles.Nineteen subelite male rugby league players performed a series of squat jumps linear 30-m sprints derive FVP profiles, respectively. The theoretical maximal force (F0), velocity (V0), power (Pmax) were both (i.e., vF0, vV0, vPmax) hF0, hV0, hPmax) profiles. Vastus lateralis (VL), biceps...
We aimed to identify the underpinning physiological and speed/mechanical determinants of different types 800-m running time trials (i.e., with a positive or negative pacing strategy) key components within each trial first final 200 m).Twenty trained male runners (800-m personal best (min:s): 1:55.10 ± 0:04.44) completed maximal (800MAX) one trial, whereby were paced for lap, speed was reduced by 7.5% (800PACE) relative 800MAX, whereas last lap in fastest possible. Anaerobic reserve, economy,...
Abstract Background To examine the associations between hip muscle cross-sectional area and pain function in community-based individuals with mild-to-moderate osteoarthritis. Methods This study included 27 participants Cross-sectional of muscles, including psoas major, rectus femoris, gluteus maximus, medius minimus, adductor longus magnus, obturator internus, externus, were measured from magnetic resonance images. Hip evaluated using Disability Osteoarthritis Outcome Score (HOOS)...
To determine the association between estimated muscle fiber typology and start turn phases of elite swimmers during competition.International national competition racing performance was analyzed from 21 female (FINA points = 894 ± 39: 104.5 1.8% world record ratio [WRR]) 25 male 885 54: 104.8 2.1% WRR) swimmers. The start, turn, out times were determined each swimmers' career best 889 48: 104.7 2.0% WRR). Muscle carnosine concentration quantified by proton magnetic resonance spectroscopy in...
To examine the association between muscle fiber typology and match running performance in professional Australian football (AF) athletes.An observational time-motion analysis was performed on 23 AF athletes during 224 games throughout 2020 competitive season. Athletes were categorized by position as hybrid, small, or tall. Athlete measured using Global Navigation Satellite System devices. Mean total maximal mean intensity values calculated for moving durations 1 10 minutes speed (in meters...
To determine the influence of muscle fiber typology (MFT) on pacing strategy elite swimmers competing in 200-m freestyle event.The top 3 career-best performances from 25 were analyzed-12 women (1:58.0 [0:01.3] min:s) and 13 men (1:48.4 [0:02.5]). Muscle carnosine concentration was quantified by proton magnetic resonance spectroscopy gastrocnemius soleus muscles expressed as a aggregate z score (CAZ score) relative to an age- gender-matched nonathlete control group estimate MFT. Linear...
To examine whether the muscle typology of elite and world-class swimmers could discriminate between their best distance event, swimming stroke style, or performance level.The carnosine content 43 male (860 [76] FINA [Fédération Internationale de Natation] points) 30 female (881 [63] was measured in soleus gastrocnemius by proton magnetic resonance spectroscopy expressed as a aggregate Z score (CAZ score) to estimate typology. A higher CAZ is associated with estimated proportion type II...
Identifying the determinants of performance is fundamental to talent identification and individualizing training prescription. Consequently, aim this study was determine whether estimated muscle typology associated with key mechanical characteristics track sprint cycling.
The purpose of this study was to determine the effect donor muscle morphology following tendon harvest in anterior cruciate ligament (ACL) reconstruction on muscular support tibiofemoral joint during sidestep cutting. Magnetic resonance imaging (MRI) used measure peak cross-sectional area (CSA) and volume semitendinosus (ST) gracilis (GR) muscles tendons (bilaterally) 18 individuals ACL reconstruction. Participants performed cutting tasks a biomechanics laboratory which lower-limb...
ABSTRACT The human semitendinosus muscle is characterized by a tendinous inscription separating proximal (ST prox ) and distal dist neuromuscular compartments. As each compartment innervated separate nerve branches, potential exists for the compartments to operate be controlled independently. However, morphology function of have not been thoroughly examined in adult population. Further, tendon typically harvested use anterior cruciate ligament reconstruction (ACLR) surgery, which induces...