Dr Justin Roberts

Senior Lecturer

Faculty:Faculty of Science & Technology

Department:Sport and Exercise Sciences

Location: Cambridge

Areas of Expertise: Sport & Exercise Sciences

Justin is a Senior Lecturer and researcher specialising in performance and functional nutrition in relation to sport, health and exercise physiology.

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justin.roberts@anglia.ac.uk

Background

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Justin is a Senior Lecturer and researcher with our The Cambridge Centre for Sport and Exercise Sciences . He is an accredited Sport and Exercise Physiologist and Chartered Scientist with the British Association of Sport and Exercise Sciences (BASES) and a Member of the American College of Sports Medicine (ACSM). He is also a Registered Nutritional Therapist with the British Association of Applied Nutrition and Nutritional Therapy (BANT), the Nutrition Therapy Council (NTC) and the Complementary and Natural Healthcare Council (CNHC).

With over 20 years’ experience in sport and exercise physiology and nutrition, Justin has worked at various institutions including the British Olympic Medical Centre (London), Brunel University, Victoria University (Melbourne) and the University of Hertfordshire (where he was the BASES laboratory director).

Justin specialises in performance and functional nutrition with a central aim of exploring dietary and supplementation strategies to support performance, recovery and health-related adaptations to exercise. His current research interests involve the use of probiotic strategies to minimise gastro-intestinal endotoxemia in ultra-endurance athletes.

Research interests

  • Nutritional strategies to minimise gastrointestinal endotoxemia from endurance and ultra-endurance performance
  • Effectiveness of green tea extract on fat oxidation, health biomarkers and exercise performance
  • Nutritional strategies employed by athletes with particular reference to team sports and ultra-endurance individuals
  • Influence of habitual diet combined with supplementation strategies on exercise performance and post exercise recovery strategies
  • Effectiveness of combined sports nutrition formulas to enhance exercise performance
  • Nutritional assessment of wholefoods and fruit/vegetable extracts with regards clinical therapy and exercise performance
  • Nutritional psychology: improving nutritional strategies through behavioural and environmental changes

Areas of research supervision

PhD supervision
  • The use of nutritional strategies to minimise gastro-intestinal endotoxmia in athletes. Current PhD Researcher, The Effects of Environmental Factors and Nutritional Interventions on Exercise Induced Endotoxemia in Ultra-Endurance Athletes
  • Assessing the impact of antioxidant nutrition on recovery from exercise. Current PhD Researcher, Inflammation and Recovery after High-Intensity, Intermittent Exercise: Effect of Antioxidant Nutrition
  • The effect of macro-nutrient manipulation on cellular adaptations to exercise. Current PhD Researcher, Nutrition and Metabolic Adaptation
  • The impact of physical activity and metabolism for dialysis patients. PhD completion, The Impact of Metabolic Factors and Physical Activity on the Requirement for Haemodialysis
MSc supervision
  • Assessing the dietary needs of recreationally active and professional athletes. MSc completion, An investigative comparison between UK and Cyprus based male football athletes in teams of habitual dietary intake, markers of physiological stress and training load
  • Nutritional profiling of ultra-endurance athletes. MSc completion, Nutrition and physiological profiling of competitors undertaking an Antarctic ultra -endurance event
  • Assessing the impact of high intensity training on exercise metabolism. Current MSc in completion, The influence of high intensity (HI) training on cardio-respiratory biomarkers, aerobic metabolism and time trial performance in recreationally trained individuals
  • The impact of ultra-endurance training in recreationally active individuals. MSc completion – awarded an MPhil, The Influence of Ultra-Endurance Exercise on Cardiovascular and Related Physiological Systems
  • Assessing the health and ergogenic effects of a green tea extract. MSc completion, An Assessment of Green Tea Bioavailability and its Effects on Endurance Exercise Performance
  • Assessing the health and ergogenic effects of a green tea extract. MSc completion, Assessment of Fat Oxidation Stability and Adaptations to a Short Term Intervention: the Effect of Green Tea Supplementation on Endurance Exercise Performance
  • The use of novel sports supplementation combinations on exercise performance. MSc completion, Effects of Chronic Ingestion of L-arginine alpha ketoglutarate Combined With Creatine monohydrate on Anaerobic Performance in Strength-Trained Athletes
  • The use of novel sports supplementation combinations on exercise performance. MSc completion, The Influence of Bovine Colostrum Combined with a Recovery Beverage During an 8-Week Resistance Training Program
  • The use of novel sports supplementation combinations on exercise performance. MSc completion, The Ingestion of Glucose, Fructose and Protein During Exercise: Influence on Exogenous Carbohydrate Oxidation and Performance
  • The use of novel sports supplementation combinations on exercise performance. MSc completion, The ergogenic effect of mixed carbohydrate supplementation on endurance cycling
  • The use of dietary strategies to improve exercise performance and recovery. MSc completion, The effect of 24-hour post exercise recovery diets with different glycemic indices on glycogen repletion and subsequent performance
  • Recovery strategies utilising sports supplementation to enhance endurance performance. MSc completion, Cooling and carbohydrate/ protein ingestion as recovery strategies for endurance performance and cycling

Qualifications

  • PGCHE (Post Graduate Certificate in Teaching and Learning), University of Hertfordshire
  • PhD (Applied Physiology and Nutrition), Brunel University
  • MPhil (Exercise Physiology and Nutrition), University of Glamorgan/ British Olympic Medical Centre
  • BA (Hons) Sports Studies, University of Bedfordshire
  • DipION (Applied Nutrition and Nutritional Therapy), Institute of Optimum Nutrition

Memberships, editorial boards

  • British Association of Sport and Exercise Sciences (BASES)
  • Accredited Sport and Exercise Scientist (Physiology)
  • Chartered Scientist
  • American College of Sports Medicine (ACSM)
  • British Association of Applied Nutrition and Nutritional Therapy (BANT)
  • Nutrition Therapy Council Registered (NTC)
  • Complementary and Natural Healthcare Council Registered (CNHC)

Research grants, consultancy, knowledge exchange

  • Senior Nutrition Advisor, Football Association, England Men's Football
  • Senior Nutrition Advisor, Manchester City Football Club, Senior Men's Squad
  • BASES Laboratory Director, University of Hertfordshire, Performance Testing Laboratory
  • External Examiner, University of West London (Nutritional Therapy)
  • External Reviewer - Medicine and Science in Sport and Exercise; International Journal for Sports Nutrition and Exercise Metabolism; European Journal of Clinical Nutrition

Selected recent publications

Roberts, J.D., Roberts, M.G., Tarpey, M.D., Weekes, J.C. and Thomas, C.H., 2015. The Effect of a Decaffeinated Green Tea Extract Formula on Fat Oxidation, Body Composition and Exercise Performance. Journal for the International Society of Sports Nutrition, 12(1), pp.1-9.

Paulin, S.W., Roberts, J.D., Roberts, M.G. and Davis, I., 2015. A Case Study Evaluation of Competitors undertaking an Antarctic Ultra Endurance Event - Nutrition, Hydration and Body Composition Variables. Extreme Physiology and Medicine, 4(3), pp.1-11.

Furber, M., Roberts, J. and Roberts, M., 2015. A Psychometrically Validated General and Sport Nutrition Knowledge Questionnaire. In submission: International Journal of Sports Nutrition and Exercise Metabolism.

Roberts, J.D., Tarpey, M.D., Kass, L.S., Tarpey, R.J. and Roberts, M.G., 2014. Assessing a commercially available sports drink on exogenous carbohydrate oxidation, fluid delivery and sustained exercise performance. Journal for the International Society of Sports Nutrition, 11(8), pp.1-14.

Sridharan, S., Berdeprado, J., Vilar, E., Roberts, J. and Farrington, K., 2014. A self-report comorbidity questionnaire for haemodialysis patients. BMC Nephrol, 15(1): 134.

Tarpey, M.D., Roberts, J.D., Kass, L.S. and Tarpey, R.J., 2013. The ingestion of maltodextrin, fructose and protein during exercise; influence on exogenous carbohydrate oxidation and performance. Applied Physiology, Nutrition and Metabolism, 9, pp.1-9

Roberts, J.D., Tarpey, M.D., Kass, L.S. and Roberts, M.G., 2012. An investigative study into the influence of a commercially available carbohydrate-protein-electrolyte beverage on short term repeated exercise performance. Journal for the International Society of Sports Nutrition, 9(5), pp.1-11.

Davey, G.J.G, Roberts, J.D., Patel, S., Pierpoint, T., Godsland, I.F., Davies, B. and McKeigue, P.M., 2000. Effects of Exercise on Insulin Resistance in South Asians and Europeans. Journal of Exercise Physiology online, 3(2).

Books and related publications
Smith, G. and Roberts, J., 2015. Triathlon It Hurts – Inspiring stories on the path to becoming an Ironman. Leicetser: Troubador Publishing Ltd. Winner Best Book – 2015 UK Running Awards.

Roberts, J.D., 2015. Nutrition for Sprinting. In: Platt, G. (Ed.) The Science of Sport: Sprinting. Wiltshire: The Crowood Press Ltd.

Roberts, J.D., 2015. Nutrition for Throwing. In: Platt, G. (Ed.). The Science of Sport: Throwing. Wiltshire: The Crowood Press Ltd. In publication.

Roberts, J.D., 2014. Diet and nutritional demands in a national soccer squad. In: Lane, A.M., Whyte, G.P., Godfrey, R.J. and Loosemore, M. (Eds.). Case Studies in Sports Science and Medicine. CreateSpace Independent Publishing.

Roberts, J.D., 2013. Sports Nutrition for Active Living and Performance. Book Education Series – Higher Nature Ltd. Tunbridge Wells: Another Country Publishing.

Recent presentations and conferences

Conference presentations (2010–current)

Roberts, J.D., Suckling, C.A., Peedle, G.Y., Murphy, J.A., Dawkins, T.G. and Roberts, M.G., 2015. Combined Probiotic and α-Lipoic Acid Supplementation Effect on Endotoxemia, Gastrointestinal Permeability and Triathlon Performance. Accepted for presentation to 62nd American College of Sports Medicine (ACSM) Annual Conference, San Diego, California. May 2015.

Dawkins, T.G., Roberts, M.G., Suckling, C.A., Peedle, G.Y., Murphy, J.A. and Roberts, J.D., 2015. The Short and Longer Term Impact of an Iron-Distance Triathlon on Arterial Stiffness. Accepted for presentation to 62nd American College of Sports Medicine (ACSM) Annual Conference, San Diego, California. May 2015.

Suckling, C.A., Roberts, J.D., Peedle, G.Y., Murphy, J.A., Dawkins, T.G. and Roberts, M.G., 2015. Vitamin D Intake and Status in a Recreationally Trained Cohort Undertaking an Iron-distance Triathlon. Accepted for presentation to 62nd American College of Sports Medicine (ACSM) Annual Conference, San Diego, California. May 2015.

Roberts, M.G., Dawkins, T.G., Murphy, J.A., Peedle, G.Y., Suckling, C.A. and Roberts, J.D., 2015. Assessing the Ergogenic Potential of α-Lipoic Acid on Laboratory Time Trial and Iron-distance Triathlon Performance. Accepted for presentation to 62nd American College of Sports Medicine (ACSM) Annual Conference, San Diego, California. May 2015.

Marshall, T.D., Pack, S., Roberts, J.D., Roberts, M.G. and Suckling, C.A., 2015. The Influence of Mental Toughness on Performance in Novice Ironman Triathletes. Accepted for presentation to 62nd American College of Sports Medicine (ACSM) Annual Conference, San Diego, California. May 2015.

Dawkins, T.G., Roberts, M.G. and Roberts, J.D., 2014.The Influence Of Ultra-Endurance Exercise On The Cardiovascular And Related Physiological Systems. Annual BASES student conference, April 2014, University of Portsmouth.

Suckling, C.A. and Roberts, J.D., 2014. The Effects of Phosphatidlyserine on Heart Rate Variability and Muscular Endurance. Annual BASES student conference, April 2014, University of Portsmouth.

Wilkinson, C.L. and Roberts, J.D., 2014. The Effects of Omega-3 fatty acid Supplementation on the Signs and Symptoms of Exercise-induced Muscle Damage. Annual BASES student conference, April 2014, University of Portsmouth.

Tanner, A.V., Roberts, J.D. and Lancaster, R., 2014. The Impact of 8-Month Training Preparation for an Ironman Distance Triathlon on Fitness and Immune Response in Recreational Athletes. 19th European College of Sports Sciences Annual Conference, 2-6 July 2014, Amsterdam.

Sridharan, S., Davenport, A., Vilar, E., Roberts, J. and Farrington, K., 2014. Relationship Of Physical Activity To Urea Generation Rate In Haemodialysis Patients. British Renal Society Conference, April 2014.

Hinchcliffe, D.J. and Roberts, J.D., 2014. The Implementation Of Green Tea Extract As A Means For Weight Loss In Judokas. Annual BASES student conference, April 2014, University of Portsmouth.

Sridharan, S., Berdeprado, J., Rennie, K.L., Ashman, N., Davenport, A., Almond, M., Banerjee, A., Vilar, E., Roberts, J.D. and Farrington, K., 2013. Predictors Of Habitual Physical Activity In Haemodialysis Patients. American Society of Nephrology Conference, November 2013.

Gargiulo, F. and Roberts, J.D., 2012. The Influence of a Bovine Colostrum Combined with a Recovery Beverage During an 8-Week Resistance Training Programme. 59th American College of Sports Medicine (ACSM) Annual Conference, May 2012, San Francisco, California.

Brice, S.J.C. and Roberts, J.D., 2012. The Effect of Conjugated Linoleic Acid on Fat Oxidation Following Short Term Aerobic Exercise. 59th American College of Sports Medicine (ACSM) Annual Conference, May 2012, San Francisco, California.

Shaw, M. and Roberts, J.D., 2012. Does the Perceived Intake of Caffeine have an Effect on Aerobic Performance. 59th American College of Sports Medicine (ACSM) Annual Conference, May 2012, San Francisco, California.

Thomas, C. and Roberts, J.D., 2012. The Effect of a Green Tea Extract Intervention on Biomarkers of Fat Oxidation. 59th American College of Sports Medicine (ACSM) Annual Conference, May 2012, San Francisco, California.

Boyle, D. and Roberts, J.D., 2012. Monitoring the Time Course Effects of L-arginine Alpha Ketoglutarate on Anaerobic Performance. Annual BASES student conference, March 2012, University of East London.

Taylor, C. and Roberts, J.D., 2012. The Influence of Carbohydrate Meal Frequency on Markers of Metabolism and Aerobic Performance in Female Subjects. Annual BASES student conference, March 2012, University of East London.

Griffiths, L. and Roberts, J.D., 2012. The Effect of Single and Double Dosing of Caffeine with Carbohydrate on Repeated Sub-maximal Performance. Annual BASES student conference, March 2012, University of East London.

Roberts, J.D., Clark, N. and Parry, T., 2011. Nutritional Assessment Case Study Observations of a Premier League Football Squad: Part 1 – Macronutrient Intake. 7th World Congress on Science and Football, Nagoya, Japan.

Roberts, J.D., Clark, N. and Parry, T., 2011. Nutritional Assessment Case Study Observations of a Premier League Football Squad: Part 2 – Micronutrient Intake. 7th World Congress on Science and Football, Nagoya, Japan.

Clark, N., Carminati, C., Edwards, A., Butterly, R. and Roberts, J.D., 2011. The Validity and Reliability of a Field Test for Anaerobic Threshold Detection in Soccer Players. 7th World Congress on Science and Football, Nagoya, Japan.

Roberts, J.D., Tarpey, M.D., Kass, L.S., Tarpey, R.J. and Roberts, M.G., 2010.The influence of fructose ingestion on exogenous carbohydrate oxidation, fluid availability and exercise performance. 57th American College of Sports Medicine (ACSM) Annual Conference, May 2012, Baltimore, Maryland.

Tarpey, M. and Roberts, J.D., 2010. The Ingestion of Combined Glucose, Fructose and Protein During Exercise: Influence on Exogenous Carbohydrate Oxidation and Performance. 57th American College of Sports Medicine (ACSM) Annual Conference, May 2010, Baltimore, Maryland.