Browsing by Author "Chrismas, Bryna C.R."
Now showing items 1-12 of 12
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Appetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditions
Bailey, Daniel P.; Smith, Lindsey R.; Chrismas, Bryna C.; Taylor, Lee; Stensel, David J.; Deighton, Kevin; Douglas, Jessica A.; Kerr, Catherine J.... more authors ... less authors ( Elsevier , 2015 , Article & Report)This study investigated the effects of continuous moderate-intensity exercise (MIE) and high-intensity interval exercise (HIIE) in combination with short exposure to hypoxia on appetite and plasma concentrations of acylated ... -
Breaking up prolonged sitting time with walking does not affect appetite or gut hormone concentrations but does induce an energy deficit and suppresses postprandial glycaemia in sedentary adults
Bailey, Daniel P.; Broom, David R.; Chrismas, Bryna C.R.; Taylor, Lee; Flynn, Edward; Hough, John... more authors ... less authors ( NRC Research Press , 2016 , Article)Background: Breaking up periods of prolonged sitting can negate harmful metabolic effects but the influence on appetite and gut hormones is not understood and is investigated in this study. Methods: Thirteen sedentary (7 ... -
Breaking up prolonged sitting with moderate-intensity walking improves attention and executive function in Qatari females
Chrismas, Bryna C.R.; Taylor, Lee; Cherif, Anissa; Sayegh, Suzan; Bailey, Daniel P. ( Public Library of Science , 2019 , Article)Background Cultural, environmental and logistical factors promote a sedentary lifestyle within Qatar, particularly for females. Sedentary behaviour is acutely associated with poor cognitive function and fatigue, and ... -
Caffeine Supplementation as an Ergogenic Aid for Muscular Strength and Endurance: A Recommendation for Coaches and Athletes
Brooks, Joseph H.; Wyld, Kevin; Chrismas, Bryna C.R. ( SciTechnol , 2016 , Article)Caffeine (1, 3, 7-trimethylxanthine) which can be ubiquitously found in energy drinks, sodas, coffee, and supplements, is one of the principal legal drugs consumed worldwide. Caffeine based ergogenic aids are utilized ... -
Hypoxic Air Inhalation and Ischemia Interventions Both Elicit Preconditioning Which Attenuate Subsequent Cellular Stress In vivo Following Blood Flow Occlusion and Reperfusion.
Barrington, James H; Chrismas, Bryna C R; Gibson, Oliver R; Tuttle, James; Pegrum, J; Govilkar, S; Kabir, Chindu; Giannakakis, N; Rayan, F; Okasheh, Z; Sanaullah, A; Ng Man Sun, S; Pearce, Oliver; Taylor, Lee... more authors ... less authors ( Frontiers Media , 2017 , Article)Ischemic preconditioning (IPC) is valid technique which elicits reductions in femoral blood flow occlusion mediated reperfusion stress (oxidative stress, Hsp gene transcripts) within the systemic blood circulation and/or ... -
The Importance of Monitoring Sleep within Adolescent Athletes: Athletic, Academic, and Health Considerations
Taylor, Lee; Chrismas, Bryna C.R.; Dascombe, Ben; Chamari, Karim; Fowler, Peter M. ( Frontiers Media , 2016 , Article)Opinion piece. -
Limiting the Rise in Core Temperature During a Rugby Sevens Warm-up With an Ice Vest.
Taylor, Lee; Stevens, Christopher J; Thornton, Heidi R; Poulos, Nick; Chrismas, Bryna C R ( Human Kinetics , 2019 , Article)Determine how a cooling vest worn during a warm-up could influence selected performance [counter movement jump (CMJ)], physical (GPS metrics) and psycho-physiological (body temperature and perceptual) variables. In a ... -
Physical fitness and physical self-concept of male and female young adults in Qatar
Chrismas, Bryna C. R.; Majed, Lina; Kneffel, Zsuzsanna ( Public Library of Science , 2019 , Article)Background Physical inactivity is high within the Qatari population, particularly within females, and school-based environments, contributing to increased morbidity and mortality. School-based physical activity (PA) outcomes ... -
Postprandial insulin and triglyceride concentrations are suppressed in response to breaking up prolonged sitting in Qatari females
Chrismas, Bryna C.R.; Taylor, Lee; Cherif, Anissa; Sayegh, Suzan; Rizk, Nasser; El-Gamal, Abdelrahman; Allenjawi, Salwa Hassan; Bailey, Daniel P.... more authors ... less authors ( Frontiers Media S.A. , 2019 , Article)Background: Cultural, environmental and logistical factors challenge the Qatari population, particularly females, to engage in physical activity, and there is a high prevalence of diabetes in this population. Sedentary ... -
A Reduction in Maximal Incremental Exercise Test Duration 48 h Post Downhill Run Is Associated with Muscle Damage Derived Exercise Induced Pain.
Chrismas, Bryna C R; Taylor, Lee; Siegler, Jason C; Midgley, Adrian W ( Frontiers Media , 2017 , Article)Purpose: To examine whether exercise induced muscle damage (EIMD) and muscle soreness reduce treadmill maximal incremental exercise (MIE) test duration, and true maximal physiological performance as a consequence of exercise ... -
Sleep Medication and Athletic Performance—The Evidence for Practitioners and Future Research Directions
Taylor, Lee; Chrismas, Bryna C.R.; Dascombe, Ben; Chamari, Karim; Fowler, Peter M. ( Frontiers Media , 2016 , Article)Opinion piece. -
The Hsp72 and Hsp90a mRNA responses to hot downhill running are reduced following a prior bout of hot downhill running, and occur concurrently within leukocytes and the vastus lateralis
Tuttle, James A.; Chrismas, Bryna C. R.; Gibson, Oliver R.; Barrington, James H.; Hughes, David C.; Castle, Paul C.; Metcalfe, Alan J.; Midgley, Adrian W.; Pearce, Oliver; Kabir, Chindu; Rayanmarakar, Faizal; Al-Ali, Sami; Lewis, Mark P.; Taylor, Lee... more authors ... less authors ( Frontiers Media S.A. , 2017 , Article)The leukocyte heat shock response (HSR) is used to determine individual's thermotolerance. The HSR and thermotolerance are enhanced following interventions such as preconditioning and/or acclimation/acclimatization. However, ...