Dr Kelly Marrin

Programme Leader and Senior Lecturer in Sport & Exercise Science

Research Group and Institute

  • Sports Performance, Exercise & Nutrition Research Group


Kelly is Programme Leader for Sport & Exercise Science. Kelly joined the Department in August 2004, having previously worked as a sports science lecturer in both Further and Higher Education. In addition, she has taught in professional soccer academies has a number of years experience within the fitness industry.  Her academic qualifications include the completion of a BSc (Hons) degree in Sports Science (University of Brighton 1996), Post Graduate Certificate in Further and Adult Education (Nottingham Trent University1999), MSc in Sport & Exercise (University of Teesside 2004), Post Graduate Certificate in Higher Education Teaching and Learning Support (Lancaster University 2005) and PhD entitled ‘Relationships between human pineal function and thermoregulation at rest and during exercise’ (Liverpool John Moores University 2012).


Kelly completed her PhD entitled “Relationships between human pineal function and thermoregulation at rest and during exercise”. This reflects her main areas of research including circadian rhythms and thermoregulation. In addition to this, Kelly has conducted a number of projects relating to anthropometric and physiological characteristics of elite water polo players. She has keen interest in applied sports performance with further research relating to the physiological profiling of various athletes, reliability and validity of tests, monitoring of sports performers, fatigue, intermittent team sports and fixture congestion.

External Engagement

Professional activities:

  • British Association of Sport and Exercise Sciences (BASES) professional member
  • Kelly is a chartered scientist and BASES reaccredited Sports Scientist (since 2007, reaccredited 2012 & 2017).
  • BASES supervised experience supervisor and reviewer
  • Network representative for BASES.
  • European College of Sports Sciences member
  • American College of Sports Medicine member.

Sports Science support/consultancy experience:

  • 2015: Ultra-endurance athlete: Preparation for Marathon De Sables
  • 2008-2009: Widnes Rugby League youth academies
  • 2008: Great Britain Taekwondo (assisting with lab based testing)
  • 2007-2009: Preston North End Ladies Soccer Team
  • 2007: Armagh Ladies Gaelic Football Team
  • 2006-2010: Welsh Women’s National Hockey Team (U/21 and Senior Squads)
  • 2006: Great Britain Rugby League Squad (anthropometric assessments)
  • 2004-2006: Scottish Women’s National Water Polo Squad
  • 2004-Present: Individual endurance athletes
  • 2003-2004: Great Britain Men’s Dragon Boat Squad

Selected Publications

  • Page, R., Marrin, K., Brogden, C., and Greig, M. (2017). The physical response to a simulated period of soccer-specific fixture congestion. Journal of Strength and Conditioning Research. Epub ahead of print. DOI, 1519/JSC.0000000000002257
  • Page, R., Marrin, K., Brogden, C., and Greig, M. (2015) Biomechanical and physiological response to a contemporary soccer match-play simulation. Journal of Strength and Conditioning Research. 29(10), 2860-6 doi: 10.1519/JSC.0000000000000949.
  • Lewis, N.C.S., Jones, H., Ainslie, P.N., Thompson, A., Marrin, K., and Atkinson, G. (2015) Influence of nocturnal and daytime sleep on initial orthostatic hypotension. European Journal of Applied Physiology. 115 (2), 269-276. doi: 10.1007/s00421-014-3010
  • Marrin, K., Drust, B., Gregson, W., and Atkinson, G (2013) A meta-analytic approach to quantify the dose-response relationship between exogenous melatonin and core body temperature. European Journal of Applied Physiology. 113 (9), 2323-2329 doi: 10.1007/s00421-013-2668
  • Jones, H., Lewis, N.C.S, Thompson, A., Marrin, K., Green, D & Atkinson, G. (2012) Diurnal variation in vascular function: Role of Sleep. Chronobiology International. 29(3), 271-277 doi: 10.3109/07420528.2012.654554.
  • Marrin, K., Drust, B., Gregson, W., Morris, C. Chester, N. and Atkinson, G (2011) Diurnal variation in the salivary melatonin responses to exercise: relation to exercise-mediated tachycardia. European Journal of Applied Physiology. 111 (11), 2707 2714 doi: 10.1007/s00421-011-1890-7