A5072401948- Sports Performance and Training
- Cardiovascular and exercise physiology
- Exercise and Physiological Responses
- Thermoregulation and physiological responses
- Sports injuries and prevention
- Muscle metabolism and nutrition
- Muscle activation and electromyography studies
- Heart Rate Variability and Autonomic Control
- Cardiovascular Effects of Exercise
- High Altitude and Hypoxia
- Winter Sports Injuries and Performance
- Occupational Health and Performance
- Physical Activity and Health
- Lower Extremity Biomechanics and Pathologies
- Sport Psychology and Performance
- Adipose Tissue and Metabolism
- Body Composition Measurement Techniques
- Genetics and Physical Performance
- Sports Dynamics and Biomechanics
- Children's Physical and Motor Development
- Erythropoietin and Anemia Treatment
- Adventure Sports and Sensation Seeking
- Motivation and Self-Concept in Sports
- Iron Metabolism and Disorders
- Thermal Regulation in Medicine
Edith Cowan University
2016-2025
Bridge University
2013-2017
Online Technologies (United States)
2017
Murdoch University
2016
University of Bedfordshire
2016
Curtin University
2016
Australian Sports Commission
2008-2011
Health Sciences and Nutrition
2008-2011
Commonwealth Scientific and Industrial Research Organisation
2008-2011
ACT Government
2009-2011
Both time-to-exhaustion (TTE) and time-trial (TT) exercise tests are commonly used to assess performance, but no study has directly examined the reliability of comparable in same subjects. Purpose: To evaluate TTE TT treadmill running high moderately intensity endurance-trained male distance runners, validate Hinckson Hopkins prediction methods using log-log modeling from results. Methods: After familiarization tests, eight runners performed, a randomized, counterbalanced order, trials...
This study explored the relationship between serum ferritin and hepcidin in athletes. Baseline levels of 54 athletes from control trial five investigations conducted our laboratory were considered; grouped according to values <30 μg/L (SF<30), 30-50 (SF30-50), 50-100 (SF50-100), or >100 (SF>100). Data pooling resulted each athlete completing one running sessions: (1) 8 × 3 min at 85% vVO2peak; (2) 5 4 90% (3) 90 continuous 75% (4) 40 (5) 65% vVO2peak. Athletes session represented amongst all...
Combat sports are typically divided into weight classes, and body-mass manipulation to reach a class is commonplace. Previous research suggests that loss practices in mixed martial arts (MMA) may be more extreme than other combat sports.To investigate the magnitude of prevalence strategies different sports.Competitors (N = 637) from Brazilian jiu-jitsu, boxing, judo, MMA, Muay Thai/kickboxing, taekwondo, wrestling completed an online questionnaire seeking information regarding their...
Background: Numerous laboratory based studies have documented that aggressive hydration strategies (∼1–2 litres/h) are required to minimise a rise in core temperature and the deleterious effects of hyperthermia on performance. However, field data relations between level, body temperature, performance rare. Objective: To measure (T ) triathletes during 226 km Ironman triathlon, compare T with markers status after event. Method: Before immediately 2004 Western Australia event (mean (SD)...
To develop and investigate the efficacy of a new precooling strategy combining external internal techniques on performance cycling time trial (TT) in hot humid environment.Eleven well-trained male cyclists undertook three trials laboratory-based TT simulating course characteristics Beijing Olympic Games event controlled environment (32°C-35°C at 50%-60% relative humidity). The trials, separated by 3-7 d, were undertaken randomized crossover design consisted following: 1) CON-no treatment...
The aim of the present study was to assess effect cold water immersion (CWI) on postexercise parasympathetic reactivation. Ten male cyclists (age, 29 +/- 6 yr) performed two repeated supramaximal cycling exercises (SE(1) and SE(2)) interspersed with a 20-min passive recovery period, during which they were randomly assigned either 5 min CWI in 14 degrees C or control (N) condition where sat an environmental chamber (35.0 0.3 40.0 3.0% relative humidity). Rectal temperature (T(re))...
The purpose of this study was to compare the effect active (AR) versus passive recovery (PR) on muscle deoxygenation during short repeated maximal running. Ten male team sport athletes (26.9+/-3.7y) performed 6 4-s sprints interspersed with 21 s either AR (2 m.s (-1)) or PR (standing) a non-motorized treadmill. Mean running speed (AvSp (mean)), percentage decrement (Sp%Dec), oxygen uptake (V O (2)), deoxyhemoglobin (HHb) and blood lactate ([La] (b)) were computed for each condition. Compared...
This study examined the effect of a 5-min cold-water immersion (14 degrees C) recovery intervention on repeated cycling performance in heat.10 male cyclists performed two bouts 25-min constant-paced (254 (22) W) session followed by 4-km time trial hot conditions (35 C, 40% relative humidity). The were separated either 15 min seated heat (control) or same condition with (5th-10th minute), using counterbalanced cross-over design (CP(1)TT(1) --> CWI CON CP(2)TT(2)). Rectal temperature was...
The purpose of this study was to determine the accuracy Velotron cycle ergometer and SRM power meter using a dynamic calibration rig over range exercise protocols commonly applied in laboratory settings. These trials included two sustained constant (250 W 414 W), incremental three high-intensity interval trials. To further compare systems, 15 subjects performed 30 km performance time displayed accurate measurements during both (<1% error). However, were found be less (3.0%, CI=1.6–4.5%...
Background Laboratory studies that support the hydration guidelines of leading governing bodies have shown dehydration to only −2% body mass can lead increase in temperature and heart rate during exercise, decrease performance. These studies, however, been conducted relatively windless environments (ie, wind speed <12.9 km/h), without participants being blinded their status. Aim To investigate effect status on cycling time-trial performance heat with ecologically valid facing conditions....
Abstract This study compared the effect of 5, 10 and 20 min cold-water (14°C) immersion on rectal muscle temperature neuromuscular function. Twelve cyclists performed four cycling time-to-exhaustion trials in hot conditions (40°C 40%rh), followed 25 later by for or room (24°C; control). Rectal was measured continuously, before, immediately after 45 time-to-exhaustion-test, as well before water immersion. Sixty-second maximal voluntary isometric torque isokinetic knee extensors were 55...
Purpose The aim of this study was to investigate the effects postexercise cold water immersion (CWI) on tissue oxygenation and blood volume changes after intense exercise. Methods Nine physically active men performed 30 min continuous running (CR) at 70% their maximal treadmill velocity (Vmax), followed by 10 bouts intermittent Vmax. After exercise, one participants’ legs immersed in a bath (10°C, CWI) level gluteal fold for 15 min. contralateral leg remained outside served as control (CON)....
To investigate the influence of daily oral iron supplementation on changes in hemoglobin mass (Hbmass) and parameters after 2-4 weeks moderate altitude exposure.Hematological data collected from 178 athletes (98 males, 80 females) exposed to (1,350-3,000 m) were analysed using linear regression determine how exposure combined with influenced Hbmass, total incorporation (TII) blood [ferritin transferrin saturation (TSAT)].Altitude (mean ± s: 21 3 days) increased Hbmass by 1.1% [-0.4, 2.6],...
Abstract Purpose : To investigate the effect of sodium bicarbonate (NaHCO 3 ) on performance and estimated energy system contribution during simulated taekwondo combat. Methods Nine athletes completed two experimental sessions separated by at least 48 h. Athletes consumed 300 mg/kg body mass NaHCO or placebo (CaCO 90 min before combat simulation (three rounds 2 1 passive recovery), in a double‐blind, randomized, repeated‐measures crossover design. All was filmed to quantify time spent...