Discussion
reductions in sedentary behaviour
This study evaluated preliminary findings of a longitudinal randomized controlled trial (RCT) to address sedentary behaviour and cardiometabolic risk markers in a cohort of South African office-based workers. It is worth noting that this intervention focussed solely on improving cardiometabolic health by using height-adjustable desk to reduce sitting time during work hours. This current study demonstrates that a height-adjustable sit-to-stand workstations are effective in reducing sedentary behaviour and improving cardiometabolic outcomes in a cohort of South African office workers over a 3-month, follow-up period. These data are important for informing further longitudinal studies of this environmental modification in the workplace.Our findings show that sedentary behaviour decreased in the intervention (-9.3 min/day) and increased in the control group (7.66 min/day) when measured with accelerometry devices respectively. These results are consistent with those of a previous intervention study that demonstrated significant reductions in sedentary behaviour in the workplace in HICs [An encouraging finding of this study is that small and trivial improvements were observed in most cardiometabolic risk markers is in agreement with a recent systematic review and meta-analysis [Systematic reviews investigated the effectiveness of sedentary behaviour reduction workplace interventions on cardiometabolic risk markers suggesting that both short-term and long-term interventions are effective in reducing prolonged sitting [