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Clinical Trial Summary

Background: This study aims to determine the effects of communicating genetic risk for Coronary Heart Disease (CHD) alone or in combination with goal setting and prompts from a wearable device on objectively measured sedentary time (ST) in East Asians. It is hypothesized that this combination will lead to significant favorable changes in objectively ST, and that such changes will be more likely to be sustained over 6-month follow-up. Methods: In a parallel group, randomized controlled trial, a total 414 individuals of East Asians aged over 60years will be allocated into one of three groups: 1 control and 2 intervention groups. Blood samples will be used for estimation of CHD genetic and analysis of metabolic risk markers. Genetic risk for CHD will be estimated based on recently identified 79 SNPs (associated with CHD for East Asians) using an established methodology. Questionnaires and physical measurement will be administered at Before and after the 12-month intervention and at 6-month follow-up. Each group will receive a Fitbit device. Both intervention groups will be given CHD genetic risk estimates along with lifestyle advice but one of them will additionally use Fitbit's step-goal setting and prompt functions. The primary outcome is objectively measured sedentary time. Secondary outcomes include objectively measured MVPA, calories burned, and five intermediate metabolic risk markers (total cholesterol/HDL-C/LDL-C/triglycerides).


Clinical Trial Description

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Study Design


Related Conditions & MeSH terms


NCT number NCT05789966
Study type Interventional
Source The University of Hong Kong
Contact Youngwon Kim, Dr
Phone (+852)28315252
Email youngwon.kim@hku.hk
Status Not yet recruiting
Phase N/A
Start date January 1, 2024
Completion date June 1, 2026

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