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Dr Claire Badenhorst staff profile picture

Contact details +64 (09) 414 0800  ext. 43410

Dr Claire Badenhorst

Lecturer in Exercise and Sport Science

School of Sport, Exercise and Nutrition

My initial research completed during my PhD addressed the substantive health issue of exercise-induced iron deficiency and the prevalence of this common nutritional disorder in endurance athletes. The research included the analysis of the causal mechanisms of iron deficiency in athletes through the inflammatory-driven increase in the iron-regulatory hormone, known as hepcidin, in the post-exercise period and nutritional strategies to reduce the impact of this hormone. Nutritional strategies investigated included the role of carbohydrate or fat ingestion pre- and post-exercise. My current research is investigating the nutrient-nutrient interactions of Iron and Vitamin D status in females and the role of hepcidin in the development in these two prominent and related nutrient deficiencies. 
My future research is directed towards the implications of nutrient deficiencies in females. A particular focus is on iron status in naturally menstruating females and methods to improve and maintain iron status. I have a keen interest in Relative Energy Deficiency in Sport (RED-S) and the effect in all athletes (males and females) and the extent to which this is present in the active general population. Extending research to understand the health implications of a energy imbalance in order to help diagnose and understand RED-S, is something I view as particularly important for research in this space.

Outside of work I am a keen triathlete and love trying to balance academic work and life with an endurance sport training schedule

My initial research completed during my PhD addressed the substantive health issue of exercise-induced iron deficiency and the prevalence of this common nutritional disorder in endurance athletes.

My current research is investigating the nutrient-nutrient interactions of Iron and Vitamin D status in females and the role of hepcidin.

My future research is directed towards iron status in naturally menstruating females and Relative Energy Deficiency in Sport (RED-S) and the effect in athletes (males and females) and  the active general population. 

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Research Expertise

Research Interests

Iron metabolism, Hepcidin, Iron status, Female physiology, Relative Energy Deficiency in Sport, RED-S, Endurance sport, Strength training

Thematics

Health and Well-being

Area of Expertise

Field of research codes
Exercise Physiology (110602): Human Movement and Sports Science (110600): Medical And Health Sciences (110000): Sports Medicine (110604)

Keywords

Exercise Physiology, Iron metabolism, Hepcidin, Relative Energy Deficiency in Sport, RED-S, Female Physiology, Endurnace Sport

Research Projects

Summary of Research Projects

Position Current Completed
Project Leader 1 1

Research Outputs

Journal

Goto, K., Mamiya, A., Ito, H., Maruyama, T., Hayashi, N., & Badenhorst, CE. (2020). Partial sleep deprivation after an acute exercise session does not augment hepcidin levels the following day. Physiological Reports. 8(10)
[Journal article]Authored by: Badenhorst, C.
Hayashi, N., Yatsutani, H., Mori, H., Ito, H., Badenhorst, CE., & Goto, K. (2020). No effect of supplemented heat stress during an acute endurance exercise session in hypoxia on hepcidin regulation. European Journal of Applied Physiology. 120(6), 1331-1340
[Journal article]Authored by: Badenhorst, C.
Smith, S., Sims, ST., Thorpe, H., Baker, D., Haszard, J., Badenhorst, C., . . . Black, KE. (2020). Hepcidin and iron: Novel findings for elite female rugby Sevens players. Journal of Sports Medicine and Physical Fitness. 60(2), 289-293
[Journal article]Authored by: Badenhorst, C.
Badenhorst, CE., Black, KE., & O'Brien, WJ. (2019). Hepcidin as a prospective individualized biomarker for individuals at risk of low energy availability. International Journal of Sport Nutrition and Exercise Metabolism. 29(6), 671-681
[Journal article]Authored by: Badenhorst, C., O'Brien, W.
Southward, K., Rutherfurd-Markwick, K., Badenhorst, C., & Ali, A. (2018). Response to “are there non-responders to the ergogenic 3 effects of caffeine ingestion on exercise performance?”. Nutrients. 10(11)
[Journal article]Authored by: Ali, A., Badenhorst, C., Rutherfurd, K.
Southward, K., Rutherfurd-Markwick, K., Badenhorst, C., & Ali, A. (2018). The role of genetics in moderating the inter-individual differences in the ergogenicity of caffeine. Nutrients. 10(10)
[Journal article]Authored by: Ali, A., Badenhorst, C., Rutherfurd, K.
Luckin, KM., Badenhorst, CE., Cripps, AJ., Landers, GJ., Merrells, RJ., Bulsara, MK., . . . Hoyne, GF. (2018). Strength Training in Long-Distance Triathletes: Barriers and Characteristics.. J Strength Cond Res.
[Journal article]Authored by: Badenhorst, C.
Badenhorst, CE., Dawson, B., Cox, GR., Sim, M., Laarakkers, CM., Swinkels, DW., . . . Peeling, P. (2016). Seven days of high carbohydrate ingestion does not attenuate post-exercise IL-6 and hepcidin levels. European Journal of Applied Physiology. 116(9), 1715-1724
[Journal article]Authored by: Badenhorst, C.
Badenhorst, CE., Dawson, B., Cox, GR., Laarakkers, CM., Swinkels, DW., & Peeling, P. (2015). Timing of post-exercise carbohydrate ingestion: influence on IL-6 and hepcidin responses. European Journal of Applied Physiology. 115(10), 2215-2222
[Journal article]Authored by: Badenhorst, C.
Badenhorst, CE., Dawson, B., Cox, GR., Laarakkers, CM., Swinkels, DW., & Peeling, P. (2015). Acute dietary carbohydrate manipulation and the subsequent inflammatory and hepcidin responses to exercise. European Journal of Applied Physiology. 115(12), 2521-2530
[Journal article]Authored by: Badenhorst, C.
Peeling, P., Sim, M., Badenhorst, CE., Dawson, B., Govus, AD., Abbiss, CR., . . . Trinder, D. (2014). Iron status and the acute post-exercise hepcidin response in athletes. PLoS ONE. 9(3)
[Journal article]Authored by: Badenhorst, C.
Badenhorst, CE., Dawson, B., Goodman, C., Sim, M., Cox, GR., Gore, CJ., . . . Peeling, P. (2014). Influence of post-exercise hypoxic exposure on hepcidin response in athletes. European Journal of Applied Physiology. 114(5), 951-959
[Journal article]Authored by: Badenhorst, C.

Thesis

Badenhorst, CE. (2016). Exploring the role of dietary carbohydrates on post-exercise inflammation, hepcidin and iron status in endurance athletes. (Doctoral Thesis, University of Western Australia)
[Doctoral Thesis]Authored by: Badenhorst, C.

Report

Rowlands, DS., Badenhorst, C., & Foskett, A. (2018). The Relative Hydrating Effects of Hypotonic Carbohydrate-Electrolyte Drinks Versus Water: Intervention Trial.
[Commissioned Report]Authored by: Badenhorst, C., Foskett, A., Rowlands, D.

Conference

Luckin, KM., Badenhorst, C., Cripps, A., Landers, G., Merrells, R., Bulsara, M., . . . Hoyne, G. (2017). Breaking down the barriers: Strength training in long distance triathletes. In Journal of Australian Strength and Conditioning Vol. 25 , National Australian Strength and Conditioning Conference: ASCA
[Conference Abstract]Authored by: Badenhorst, C.Contributed to by: Badenhorst, C.
Badenhorst, CE. (2015, November). Acute dietary carbohydrate manipulation and the subsequent inflammatory and hepcidin responses to exercise. Presented at Applied Physiology Conference. Perth Western Australia.
[Conference Oral Presentation]Authored by: Badenhorst, C.
Badenhorst, CE., Dawson, B., Goodman, C., Sim, M., Cox, GR., Gore, CJ., . . . Peeling, P. (2014, July). Influence of post-exercise hypoxic exposure on hepcidin response in athletes. Presented at 19th Annual Congress of the European College of Sports Science. Amsterdam, Netherlands.
[Conference Oral Presentation]Authored by: Badenhorst, C.

Consultancy and Languages

Consultancy

  • January 2020- Current - SportsLab
    Exercise and Sport Physiologist

Teaching and Supervision

Teaching Statement

Course Co-ordinator Exercise Physiology 234.223

Lecturer: Functional Anatomy (234.121), Nutrition for Sport and Performance (151.332), Applied Sport Science (234.324), Mammalian Biology (194.101)

Bachelor of Science (Sport and Exercise) Major Leader in Auckland for Massey University

Courses Coordinated

Graduate Supervision Statement

Supervising is about providing the support a student needs to achieve their goals during a post graduate degree. If a student is willing to work hard, then I will always match them on their effort and work. As a supervisor my role is to provide a framework of support and guide the student through post graduate study, and by the end of their degree have them confident in their ability as a researcher. 


Summary of Doctoral Supervision

Position Current Completed
Co-supervisor 2 0

Current Doctoral Supervision

Co-supervisor of:

  • Huixin Zheng - Doctor of Philosophy
    The Female Endurance Athlete: Heat, Hepcidin and Health
  • Kyle Southward - Doctor of Philosophy
    The effects of genetics on physical, mental and perceptual responses to caffeine supplementation

Media and Links

Media

  • 31 May 2019 - Television
    Seven Sharp Interview
    The '10,000 steps a day' exercise rule busted as an urban myth
  • 28 Aug 2019 - Television
    Iron Awareness Week 2019 NewsHub
    Interview for NewsHub during Iron Awareness Week
  • 26 Feb 2018 - Newspaper
    New Zealand Herald Article
    Exercise and Diets for the New Year
  • 26 Aug 2019 - Newspaper
    Iron deficiency is suffocating our teen girls
    Press Release
  • 23 Aug 2019 - Online
    THE SILENT EPIDEMIC: Iron Deficiency in Teenagers
    Podcast: THE SILENT EPIDEMIC: IRON DEFICIENCY IS SUFFOCATING OUR TEEN GIRLS
  • 20 Mar 2018 - Newspaper
    Sport scientist tests her mettle at Ironman
    Sport Scientist completing an Ironman
  • 01 Jan 2019 - Newspaper
    More spent on low iron hospitalisations
    More spent on low iron hospitalisations as meat intake declines

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