Objective: To explore workers' sitting-reduction and activity-promoting strategy use following an intervention targeting these changes, and whether strategy use and perceived workplace support impacted on 3-month sitting and activity outcomes.
Methods: This secondary analysis in desk-based workers (n = 83) utilized data collected on questionnaire-derived strategy use and workplace support, and activPAL3-derived sitting (total; prolonged, ≥30 minutes) and activity (standing; stepping) at work.
Results: Fourteen strategies were commonly used during the intervention. Increased usage of some strategies were significantly (P < 0.05) associated with beneficial changes in prolonged sitting or stepping only. Workplace support was significantly beneficially associated with changes in sitting, prolonged sitting, and stepping; these associations were largely independent of strategy use changes.
Conclusions: Strategies were highly used, with increased use associated with some behavioral improvements. Workplace support appears essential for improving sitting and activity in the workplace.