Dr Glen Davison attained his first degree in Sport and Exercise Sciences at Sheffield Hallam University in 2001. He then completed an MSc in Exercise Physiology, also at Sheffield Hallam, graduating in September 2002. He commenced his PhD on “Nutrition and Exercise Immunology” in October 2002 at Loughborough University. Whilst at Loughborough Glen also worked as a Teaching Assistant in Exercise Physiology. He worked as a lecturer in Sports Nutrition and Exercise Physiology at Aberystwyth University for just over 5 years before joining the SSES, University of Kent, in September 2011. Dr Davison is also a BASES Accredited sport and exercise scientist in Physiology Support. He has worked with amateur and professional/elite athletes from a range of sports, including Football, Rugby, Hockey, Athletics, Triathlon and Cycling.
His current interests include: Nutrition and Exercise Immunology; Interval training; Sport & Exercise Science support of athletes (i.e. maintaining optimal health and performance) in sports including Football, Rugby, Hockey, Athletics, Endurance/LD running, Triathlon and Cycling; Exercise Immunology in people with Diabetes. back to top
Chou, C. et al. (2018). Short-Term High-Dose Vitamin C and E Supplementation Attenuates Muscle Damage and Inflammatory Responses to Repeated Taekwondo Competitions: A Randomized Placebo-Controlled Trial. International Journal of Medical Sciences [Online] 15:1217-1226. Available at: https://doi.org/10.7150/ijms.26340.
Abstract | View in KAR | View Full Text
Background: Exercise-induced muscle damage during intensive sport events is a very common
issue in sport medicine. Therefore, the purpose is to investigate the effects of short-term high-dose
vitamin C and E supplementation on muscle damage, hemolysis, and inflammatory responses to
simulated competitive Olympic Taekwondo (TKD) matches in elite athletes.
Methods: Using a randomized placebo-controlled and double-blind study design, eighteen elite
male TKD athletes were weight-matched and randomly assigned into either a vitamin C and E group
(Vit C+E; N = 9) or placebo group (PLA; N = 9). Vit C+E or PLA supplements were taken daily (Vit
C+E: 2000 mg/d vitamin C; 1400 U/d vitamin E) for 4 days (3 days before and on competition day)
before taking part in 4 consecutive TKD matches on a single day. Plasma samples were obtained
before each match and 24-hours after the first match for determination of markers of muscle
damage, hemolysis, and systemic inflammatory state.
Results: Myoglobin was lower in the Vit C+E group, compared to PLA, during the match day (area
under curve, AUC -47.0% vs. PLA, p = 0.021). Plasma creatine kinase was lower in the Vit C+E
group (AUC -57.5% vs. PLA, p = 0.017) and hemolysis was lower in the Vit C+E group (AUC -40.5%
vs. PLA, p = 0.034).
Conclusions: We demonstrated that short-term (4-days) vitamin C and E supplementation
effectively attenuated exercise-induced tissue damage and inflammatory response during and after
successive TKD matches.
Stimpson, N., Davison, G. and Javadi, A. (2018). Joggin' the Noggin: Towards a Physiological Understanding of Exercise-Induced Cognitive Benefits. Neuroscience & Biobehavioral Reviews [Online] 88:177-186. Available at: https://doi.org/10.1016/j.neubiorev.2018.03.018.
March, D. et al. (2018). The effect of bovine colostrum supplementation on intestinal injury and circulating intestinal bacterial DNA following exercise in the heat. European Journal of Nutrition [Online]. Available at: https://doi.org/10.1007/s00394-018-1670-9.
Abstract | View in KAR | View Full Text
Exercise-induced changes in intestinal permeability are exacerbated in the heat. The aim of this study was to
determine the effect of 14 days of bovine colostrum (Col) supplementation on intestinal cell damage (plasma intestinal fatty
acid-binding protein, I-FABP) and bacterial translocation (plasma bacterial DNA) following exercise in the heat.
In a double-blind, placebo-controlled, crossover design, 12 males completed two experimental arms (14 days of
20 g/day supplementation with Col or placebo, Plac) consisting of 60 min treadmill running at 70% maximal aerobic capacity
(30 °C, 60% relative humidity). Blood samples were collected pre-exercise (Pre-Ex), post-exercise (Post-Ex) and 1 h
post-exercise (1 h Post-Ex) to determine plasma I-FABP concentration, and bacterial DNA (for an abundant gut species,
Two-way repeated measures ANOVA revealed an arm×time interaction for I-FABP (P=0.005, with greater PostEx
increase in Plac than Col, P=0.01: Plac 407±194% of Pre-Ex vs Col, 311±134%) and 1 h Post-Ex (P=0.036: Plac
265±80% of Pre-Ex vs Col, 229±56%). There was no interaction (P=0.904) but there was a main effect of arm (P=0.046)
for plasma Bacteroides/total bacterial DNA, with lower overall levels evident in Col.
This is the first investigation to demonstrate that Col can be effective at reducing intestinal injury following
exercise in the heat, but exercise responses (temporal pattern) of bacterial DNA were not influenced by Col (although overall
levels may be lower).
For more information about my publications, please visit my Google Scholar or Research Gate profiles. back to top
My research to date has focussed on Immune System Function in athletes and how the human immune system responds to prolonged (endurance) exercise, as well as various types of training (including high-intensity interval training).
I am particularly interested:
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- The effects of nutrition on human immune function, physiological adaptation, and risk of upper respiratory tract infection (URTI) symptoms after exercise.
- The effects of acute/short-term supplementation with commercially available supplements.
- Immune function in people with Diabetes.