Ukumela Impilo Trial: Preliminary Findings of Height-Adjustable sit to stand Workstations on Health Outcomes of South African Office Workers

Background: The prevalence of sedentary behaviour has concurrently risen with multiple cardiometabolic risk markers independent of physical activity levels. Office-based workers accumulate the highest levels of sitting time during occupational times. This study aims to investigate the short-term effects of using height-adjustable sit-to-stand workstations on cardiometabolic risk markers of office-based workers in South Africa. Results Sixty-two office-based workers were randomized into treatment (n = 44), and the control group (n = 18). Small improvements were observed in BMI, blood pressure, and cholesterol levels in this cohort. Conclusion This preliminary investigation confirms that short-term height-adjustable sit-stand interventions are effective in reducing workplace sitting time and selected health outcomes. South Africa has been attributed with the highest burden of obesity in Sub-Saharan Africa, as a result, there is a need to implement long-term workplace intervention to reverse these implications. Trial registration: Pan African Clinical Trial Registry, PACTR201911656014962 on the 12 th of November 2019.