A5021312705- Sports Performance and Training
- Heart Rate Variability and Autonomic Control
- Neural and Behavioral Psychology Studies
- Behavioral Health and Interventions
- Sport Psychology and Performance
- Motivation and Self-Concept in Sports
- Cardiovascular and exercise physiology
- Stress Responses and Cortisol
- Neuroscience of respiration and sleep
- High Altitude and Hypoxia
- Thermoregulation and physiological responses
- Physical Education and Pedagogy
- Sports injuries and prevention
- Ergonomics and Musculoskeletal Disorders
- Children's Physical and Motor Development
- Functional Brain Connectivity Studies
- Psychosomatic Disorders and Their Treatments
- Sports Analytics and Performance
- Adipose Tissue and Metabolism
- Muscle metabolism and nutrition
- Sleep and Wakefulness Research
- Climate Change and Health Impacts
- Occupational Health and Performance
- Color perception and design
- Motor Control and Adaptation
University of Chichester
2015-2024
Chichester College
2014-2024
University of Portsmouth
2015-2024
Center for Health, Exercise and Sport Sciences
2018-2020
Northumbria University
2015-2019
University of Edinburgh
2010-2012
National Institute of Environmental Health Sciences
1996
Cambridge University Press
1974
Bentley (Germany)
1974
Abstract Acute cardiovascular physical exercise improves cognitive performance, as evidenced by a reduction in reaction time (RT). However, the mechanistic understanding of how this occurs is elusive and has not been rigorously investigated humans. Here, using positron emission tomography (PET) with [ 11 C]raclopride, multi‐experiment study we whether acute releases endogenous dopamine (DA) brain. We hypothesized that augments brain DA system, RT improvement correlated release. The PET...
RXR is a nuclear receptor that plays central role in cell signaling by pairing with host of other receptors. Previously, 9-cis-retinoic acid (9cRA) was defined as potent activator. Here we describe unique effector identified from organic extracts bovine serum following RXR-dependent transcriptional activity. Structural analyses material active fractions pointed to the saturated diterpenoid phytanic acid, which induced transcription at concentrations between 4 and 64 microM. Although 200...
Abstract It was recently observed that dehydration causes shrinkage of brain tissue and an associated increase in ventricular volume. Negative effects on cognitive performance have been shown some but not all studies, it has also reported increased perceived effort may be required following dehydration. However, the function are unknown. We investigated this question using functional magnetic resonance imaging (fMRI) 10 healthy adolescents (mean age = 16.8, five females). Each subject...
Two experiments were carried out to examine the effect of moderate and maximal exercise on cognitive performance experienced soccer players. Experiment 1 examined speed visual search in familiar (game) unfamiliar (non-game) contexts. Participants had detect, as quickly possible, presence or absence a ball tachistoscopically presented slides. tested at rest while exercising 70 100% maximum power output. A main intensity was demonstrated Tukey post-hoc tests showed that during significantly...
To examine the effect of moderate and fatiguing exercise on simple reaction times recreational athletes, 12 subjects took a reaction-time test while at rest cycling Monark cycle ergometer 70% 100% maximum workload. estimate workload underwent standard incremental until exhaustion, defined as being unable to maintain required pedal rate 70 rpm. Simple time during maximal was significantly slower than in other two conditions which did not differ from one another. Heart perceived exertion...
Dehydration can affect brain structure which has important implications for human health. In this study, we measured regional changes in following acute dehydration. Healthy volunteers received a structural MRI scan before and after an intensive 90-min thermal-exercise dehydration protocol. We used two techniques to determine structure: manual point counting technique using MEASURE, fully automated voxelwise analysis SIENA. After the exercise regime, participants lost (2.2% +/- 0.5%) of...
The purpose of this study was to examine the effect creatine supplementation on cognitive performance elderly people. Participants were divided into two groups, which tested random number generation, forward and backward spatial recall, long-term memory tasks establish a baseline level. Group 1 (n = 15) given 5 g four times day placebo for week, followed by same dosage second week. 2 17) both weeks. retested at end each Results showed significant all except recall. It concluded that aids...