Workplace sitting and productivity: findings from a cluster randomised controlled pilot trial of a workplace intervention for reducing sitting time in office workers

Objective The aim of the study was to evaluate the feasibility and potential effects of a workplace intervention to reduce and break up sitting. Methods Office workers were randomized in clusters to intervention ( n = 22) or control ( n = 22). The intervention included a height-adjustable workstation, education, computer prompt software, and line manager support. Outcomes included device-measured workplace sitting and ecological momentary assessed workplace productivity. Recruitment, retention, and data completion rates were assessed. Results Recruitment ( N = 44), retention (91%), and workplace sitting measurement rates demonstrated study feasibility. At 8 weeks, workplace sitting was 11% lower (95% CI: −20.71, −1.30) in the intervention group compared with control participants. Intervention participants were also more engaged, motivated, and productive while sitting ( P ≤ 0.016). Conclusions It was feasible to implement and evaluate this office workplace intervention, with potential benefits on workplace sitting and ecological momentary assessed productivity.