As a physical activity epidemiologist, Dr. Kim has focused his research on understanding the preventive role of physical activity from an epidemiological perspective. Specifically, he has examined the associations of physical activity and fitness with various mortality, cardiovascular disease and cancer outcomes using data from the UK Biobank project, an ongoing national cohort study of >500,000 UK adults. More recently, his research has examined gene-environment interactions, with physical activity or fitness as an environmental component, to explore whether an increased genetic risk of chronic diseases can be offset through physical activity or fitness. In addition, he has initiated clinical trials to determine the effects of genetic risk communication and wearable device functions on changes in behavioral outcomes.
His primary research interest also lies in improving methodologies for conducting physical activity epidemiology research. Dr. Kim's publications in this line of research have focused on evaluating the utility and validity of various accelerometer-based wearable devices and self-reports to assess physical activity in both children and adults.
- Kim, Y., Burns, R.D., Lee, D.C., & Welk, G.J. (in Press) Associations of movement behaviors and body mass index: Comparison between a report-based and monitor-based method using Compositional Data Analysis. International Journal of Obesity (Lond)
- Kim, Y., Wijndaele, K., Sharp, S.J., Strain, T., Pearce, M., White, T., Wareham, N., & Brage, S (2019) Specific physical activities, sedentary behaviours and sleep as long-term predictors of accelerometer-measured physical activity in 91,648 adults: A prospective cohort study. International Journal of Behavioral Nutrition and Physical Activity. 16(1):41 [Impact Factor 2018: 6.04; Rank 7/87 in “Nutrition & Dietetics”]
- Kim, Y., White, T., Wijndaele, K., Westgate, K., Sharp, S.J., Helge, J.W., Wareham, N., & Brage, S. (2018) The combination of cardiorespiratory fitness and muscle strength, and mortality risk. European Journal of Epidemiology. 33(10):953-964 [Impact Factor 2018: 6.53; Rank 8/186 in “Public, Environmental & Occupational Health”]
- Kim, Y., Wijndaele, K., Lee, D.C., Sharp, S.J., Wareham, N., & Brage, S. (2017). Independent and joint associations of grip strength and adiposity with all-cause and cardiovascular disease mortality in 403,199 adults: The UK Biobank study. The American Journal of Clinical Nutrition. 106(3):773-782 [Impact Factor 2017: 6.55; Rank 5/87 in “Nutrition & Dietetics”]
- Kim, Y., Hibbing, P., Saint-Maurice, P.F., Ellingson, L.D., Hennessy, E., Wolff-Hughes, D.L., Perna, F.M., & Welk, G.J. (2017) Surveillance of youth physical activity and sedentary behavior with wrist accelerometry. American Journal of Preventive Medicine. 52(6): 872-879 [Impact Factor 2017: 4.13; Rank 21/186 in “Public, Environmental & Occupational Health”]
- Kim, Y., White, T., Wijndaele, K., Sharp, S.J., Wareham, N., & Brage, S. (2017). Adiposity and grip strength as long-term predictors of objectively measured physical activity in 93,015 adults: the UK Biobank study. International Journal of Obesity (Lond). 41(9): 1361-1368 [Impact Factor 2017: 5.16; Rank 12/87 in “Nutrition & Dietetics”]
- Kim, Y., & Welk, G.J. (2015) Criterion validity of competing accelerometry-based activity monitoring devices. Medicine and Science in Sports and Exercise. 47(11): 2456-63 [Impact Factor 2015: 4.04; Rank 6/83 in “Sports Sciences”]
- Kim, Y., Lee, J.M., Peters, B.P., Gaesser, G.A., & Welk, G.J. (2014). Examination of different accelerometer cut-points for assessing sedentary behaviors in children. PLoS ONE. 9(4): e90630. [Impact Factor 2014: 3.23; Rank 24/69 in “Multidisciplinary Sciences”]
- Lee, J.M., Kim, Y., & Welk, G.J. (2014). Validity of consumer-based physical activity monitors. Medicine and Science in Sports and Exercise. 46(9): 1840-8 [Impact Factor 2014: 3.98; Rank 6/83 in “Sports Sciences”]
- Kim, Y., Beets, M.W., & Welk, G.J. (2012). Everything you wanted to know about selecting the “right” Actigraph accelerometer cut-points for youth, but…: A systematic review. Journal of Science and Medicine in Sport. 15(4): 311-21 [Impact Factor 2012: 2.90; Rank 12/83 in “Sports Science”]