A5027488800- Sports Performance and Training
- Cardiovascular and exercise physiology
- Exercise and Physiological Responses
- Muscle metabolism and nutrition
- Thermoregulation and physiological responses
- Heart Rate Variability and Autonomic Control
- Sports injuries and prevention
- Cardiovascular Effects of Exercise
- Diet and metabolism studies
- Adipose Tissue and Metabolism
- Muscle activation and electromyography studies
- Non-Invasive Vital Sign Monitoring
- High Altitude and Hypoxia
- Genetics and Physical Performance
- Winter Sports Injuries and Performance
- Occupational Health and Performance
- Obesity, Physical Activity, Diet
- Biochemical Acid Research Studies
- Climate Change and Health Impacts
- Nutritional Studies and Diet
- Non-Destructive Testing Techniques
- Thermal Regulation in Medicine
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Adipokines, Inflammation, and Metabolic Diseases
- COVID-19 Clinical Research Studies
Auckland University of Technology
2013-2023
University of Agder
2023
University of Auckland
2019
Edith Cowan University
2004-2013
Millennium Institute
2012
Education New Zealand
2011
Université de Picardie Jules Verne
2010
Aspire Academy
2010
Clermont Université
2010
Université Clermont Auvergne
2010
To establish the validity of smartphone photoplethysmography (PPG) and heart-rate sensor in measurement variability (HRV).29 healthy subjects were measured at rest during 5 min guided breathing normal using PPG, a chest strap, electrocardiography (ECG). The root mean sum squared differences between R-R intervals (rMSSD) was determined from each device.Compared to ECG, technical error estimate (TEE) acceptable for all conditions (average TEE CV% [90% CI] = 6.35 [5.13; 8.5]). When assessed as...
The purpose of this study was to examine the effects muscular power engagement, anaerobic participation, aerobic level, and energy expenditure on postexercise parasympathetic reactivation. We compared response heart rate (HR) after repeated sprinting with that exercise sessions comparable net contribution. Fifteen moderately trained athletes performed 1) 18 maximal all-out 15-m sprints interspersed 17 s passive recovery (RS), 2) a moderate isocaloric continuous session (MC) at level mean...
LAURSEN, P. B., C. M. SHING, J. PEAKE, S. COOMBES, and D. G. JENKINS. Interval training program optimization in highly trained endurance cyclists. Med. Sci. Sports Exerc., Vol. 34, No. 11, pp. 1801–1807, 2002. Purpose The purpose of this study was to examine the influence three different high-intensity interval (HIT) regimens on performance athletes. Methods Before, after 2 4 wk training, 38 cyclists triathletes (mean ± SD; age = 25 6 yr; mass 75 7 kg; V̇O2peak 64.5 5.2 mL·kg−1·min−1)...
Repeated supramaximal exercise training is an efficient means of improving both aerobic and anaerobic energy system capacities. However, the influence different levels on parasympathetic function unknown. Purpose: To compare effects repeated-sprint (RS) versus high-intensity intermittent (HIT) performance postexercise reactivation in trained adolescents. Methods: Fifteen male adolescents (15.6 ± 0.8 yr) were divided into two groups that performed 9 wk either RS (repeated all-out 6-s shuttle...
This study compared the effect of high-intensity interval training (HIT) versus specific game-based handball (HBT) on performance parameters. Thirty-two highly-trained adolescents (15.5+/-0.9 y) were assigned to either HIT (n=17) or HBT (n=15) groups, that performed twice per week for 10 weeks. The consisted 12-24 x 15 s runs at 95% speed reached end 30-15 Intermittent Fitness Test (V(IFT)) interspersed with passive recovery, while small-sided games over a similar time period. Before and...
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...
In this study, we compared the reliability of short-term resting heart rate (HR) variability (HRV) and postexercise parasympathetic reactivation (i. e., HR recovery (HRR) HRV) indices following either submaximal or supramaximal exercise. On 4 different occasions, beat-to-beat was recorded in 15 healthy males (21.5±1.4 yr) during 5 min seated rest, followed by (Sub) (Supra) exercise bouts; both bouts were recovery. Reliability all HR-derived assessed typical error measurement expressed as a...
The purpose of this study was to examine the influence sequence order high-intensity endurance training and circuit on changes in muscular strength anaerobic power. Forty-eight physical education students (ages, 21.4 +/- 1.3 years) were assigned 1 5 groups: no controls (C, n = 9), (E, 10), (S, before same session, (E+S, session (S+E, 10). Subjects performed 2 sessions per week for 12 weeks. Resistance-type targeted (weeks 1-6) explosive power 7-12). Endurance included repetitions run at...
To investigate the effect of ice slurry ingestion on thermoregulatory responses and submaximal running time in heat.On two separate occasions, a counterbalanced order, 10 males ingested 7.5 g·kg(-1) either (-1°C) or cold water (4°C) before to exhaustion at their first ventilatory threshold hot environment (34.0°C ± 0.2°C, 54.9% 5.9% relative humidity). Rectal skin temperatures, HR, sweating rate, ratings thermal sensation perceived exertion were measured.Running was longer (P = 0.001) after...
The purpose of this study was to compare the effects pre-exercise ice slurry ingestion and cold water immersion on submaximal running time in heat. On three separate occasions, eight males ran exhaustion at their first ventilatory threshold heat (34.0 ± 0.1 ° C, 52 3% relative humidity) following one 30 min manoeuvres: (1) ingestion; (2) immersion; or (3) warm fluid (control). Running longer (56.8 5.6 min; P = 0.008) (52.7 8.4 0.005) compared with control (46.7 7.2 min), but not...
The aim of this study was to compare 2 different methodological assessments when analyzing the relationship between performance and heart-rate (HR) -derived indices (resting HR [RHR] variability [HRV]) evaluate positive adaptation training. relative change in estimated maximum aerobic speed (MAS) 10-km-running correlated RHR natural logarithm square root mean sum squared differences R-R intervals on an isolated day (RHR ; Ln rMSSD ) or averaged over 1 wk week 10 runners who responded a 9-wk...
To establish the minimum number of days that heart-rate-variability (HRV, ie, natural logarithm square root mean sum squared differences between R-R intervals, Ln rMSSD) data should be averaged to achieve correspondingly equivalent results as over a 1-wk period.Standardized changes in rMSSD different phases training (normal training, functional overreaching (FOR), overall and taper) correlation coefficients percentage performance vs were compared when averaging from 1 7 d, randomly selected...