Sit Less and Move More-A Multicomponent Intervention With and Without Height-Adjustable Workstations in Contact Center Call Agents: A Pilot Randomized Controlled Trial

Objective: To pilot a multi-component intervention to sit less and move more, with (SLAMM+) and without (SLAMM) height-adjustable workstations, in contact centre call agents.\ud Methods: Agents were individually randomised to SLAMM or SLAMM+ in this 10-month, parallel, open-label, pilot trial. Mixed-methods assessed response, recruitment, retention, attrition and completion rates, adverse effects, trial feasibility and acceptability, preliminary effectiveness on worktime sitting, and described secondary outcomes.\ud Results: The participant recruitment rate, and randomisation, data collection and interventions were mostly acceptable. Refinements to organisation recruitment were identified. High staff turnover negatively impacted retention and completion rates. The multi-component intervention with height adjustable workstations has potential to reduce sitting time at work.\ud Conclusions: The demonstrated findings will help prepare for a future randomised controlled trial designed to assess the effect of the interventions.