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Wolfson Institute of Population Health

Dr Dharani Yerrakalva

Senior Clinical Research Fellow and Honorary Clinical Consultant in Primary Care



I am an academic GP, and have an interest in primary care interventions, prevention (particularly relating to physical activity and sedentary time) and mhealth interventions. I have completed an NIHR doctoral research fellowship and ACF at the University of Cambridge. 


Research Interests:

Physical activity

Sedentary time


Mobile apps

Older adults


Bidirectional associations of sedentary time and physical activity with quality of life among older adults. Yerrakalva D, Hajna S, Wijndaele K, Westgate K, Khaw KT, Wareham N, Griffin SJ, Brage S. Health and QoL Outcomes. 2023 Jun 22;21(1):60. doi: 10.1186/s12955-023-02137-7.

Bidirectional associations of accelerometer-assessed physical activity and sedentary time with physical function among older English adults: the EPIC-Norfolk cohort study. Yerrakalva D, Hajna S, Wijndaele K, Dempsey PC, Westgate K, Wareham N, Griffin SJ, Brage S.Eur J Ageing. 2022 Oct 21;19(4):1507-1517. doi: 10.1007/s10433-022-00733-y. eCollection 2022 Dec.PMID: 36506675 

Correlates of change in accelerometer-assessed total sedentary time and prolonged sedentary bouts among older English adults: results from five-year follow-up in the EPIC-Norfolk cohort. Yerrakalva D, Hajna S, Wijndaele K, Westgate K, Khaw KT, Wareham N, Griffin SJ, Brage S.Aging (Albany NY). 2021 Jan 11;13(1):134-149.

Effects of Mobile Health App Interventions on Sedentary Time, Physical Activity, and Fitness in Older Adults: Systematic Review and Meta-Analysis. Yerrakalva D, Yerrakalva D, Hajna S, Griffin S.J Med Internet Res. 2019 Nov 28;21(11):e14343. 

Do older English adults exhibit day-to-day compensation in sedentary time and in prolonged sedentary bouts? An EPIC-Norfolk cohort analysis. Yerrakalva D, Wijndaele K, Hajna S, Westgate K, Khaw KT, Wareham N, Griffin SJ, Brage S.PLoS One. 2019 Oct 25;14(10):e0224225. 

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