• 4002 Citations
  • 34 h-Index
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Personal profile


Hayley’s research focusses on improving children’s physical activity levels, health and well-being through multi-level interventions focussed on the child, family, social and built environment. This includes identifying and testing strategies to create healthy early childhood education and care environments and investigating how the home and neighbourhood environment shapes children’s health and development.

Hayley leads the PLAYCE (Play Spaces & Environments for Children’s Physical Activity) program of research, a multidisciplinary team of staff and students based at the School of Population and Global Health. She is Fellow at the Telethon Kids Institute. Dr Christian has over 18 years professional experience in health promotion practice (3 years), health promotion research project management (13 years) and health promotion teaching and research (15 years). Dr Christian has research experience in the areas of physical activity, sedentary behaviour, obesity, paediatric exercise science, child health and development, the built environment and health, health promotion and public health, cohort studies, interventions and quantitative and qualitative research.

Funding overview

See Research Profile link below


2016-2020 National Heart Foundation Future Leader Fellowship

2012-2016 NHMRC/National Heart Foundation Early Career Fellowship

2004-2008 ARC Postgraduate Award - Industry

Teaching overview

Associate Lecturer, School of Population and Global Health, The University of Western Australia (current)

Graduate Entry Medical Program PBL tutor, Faculty of Medicine and Dentistry, The University of Western Australia (2006-2008)


Early Childhood Education and Care interventions to support and encourage healthy behaviours (i.e., physical activity, reduced sedentary and screen time, sleep) and optimal development in the early years
Influence of the home and neighbourhood environment on child health and development
Natural experiments of the impact of the built environment on health
Health and development benefits of pets for children and adults
Health benefits of nature contact and green space


  • Physical activity (adult and child)
  • Obesity
  • Health and the built environment
  • Health benefits of pet ownership
  • Health promotion

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Walking Medicine & Life Sciences
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Exercise Medicine & Life Sciences
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Child Development Medicine & Life Sciences
Life Style Medicine & Life Sciences
Crime Medicine & Life Sciences

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Research Output 2002 2019

1 Citation (Scopus)

Associations between the home yard and preschoolers’ outdoor play and physical activity

Armstrong, G. P., Maitland, C., Lester, L., Trost, S. G., Trapp, G., Boruff, B., Al Marzooqi, M. K. & Christian, H. E., 6 Mar 2019, In : Public Health Research and Practice. 29, 1, e2911907.

Research output: Contribution to journalArticle

Open Access
Equipment and Supplies
Social Environment
Linear Models
4 Citations (Scopus)

Dog owners are more likely to meet physical activity guidelines than people without a dog: An investigation of the association between dog ownership and physical activity levels in a UK community

Westgarth, C., Christley, R. M., Jewell, C., German, A. J., Boddy, L. M. & Christian, H. E., 1 Dec 2019, In : Scientific Reports. 9, 1, 5704.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Dog ownership, the natural outdoor environment and health: A cross-sectional study

Zijlema, W. L., Christian, H., Triguero-Mas, M., Cirach, M., Van Den Berg, M., Maas, J., Gidlow, C. J., Kruize, H., Wendel-Vos, W., Andrušaitytä, S., Grazuleviciene, R., Litt, J. & Nieuwenhuijsen, M. J., 1 May 2019, In : BMJ Open. 9, 5, e023000.

Research output: Contribution to journalArticle

Open Access
Cross-Sectional Studies
Life Style
Weight Gain

P147 Individual, social and environmental factors associated with adolescent energy drink consumption

Trapp, G., Christian, H., McStay, C. L., Martin, K., Ambrosini, G., Bromberg, M., Howard, J. & Cross, D., Jul 2019, In : Journal of Nutrition Education and Behavior. 51, 7S, p. S98-S99 2 p.

Research output: Contribution to journalAbstract/Meeting Abstract

Energy Drinks
Odds Ratio
Social Environment


Supplementary tables for: Association between the home yard on preschoolers’ outdoor play and physical activity

Christian, H. (Creator), Rosenberg, M. (Creator), Trost, S. (Creator), Schipperijn, J. (Creator), Maitland, C. (Creator), Trapp, G. (Creator), Lester, L. (Creator), Boruff, B. (Creator), The University of Western Australia, 2019



Projects 2009 2024