Implementation and engagement of the SMART Work & Life sitting reduction intervention: an exploratory analysis on...

Area of Science:

• Occupational Health
• Behavioral Science
• Public Health Interventions

Background:

• Understanding intervention engagement is crucial for maximizing impact on study outcomes.
• The SMART Work & Life (SWAL) programme was evaluated for its implementation and engagement levels.
• The study compared SWAL delivered with and without a height-adjustable desk against a control group.

Purpose of the Study:

• To assess the implementation and engagement levels of the SWAL intervention.
• To explore the relationship between intervention engagement and changes in daily sitting time.
• To compare the effectiveness of SWAL with and without a desk on reducing sedentary behavior.

Main Methods:

• Intervention delivery and participant engagement were measured using logs and questionnaires.
• Clusters were categorized by low, medium, or high implementation and engagement levels.
• Mixed effects linear regression analyses examined the effect of engagement levels on sitting time changes.

Main Results:

• Most intervention strategies were implemented to some degree, with significant variation across clusters.
• High implementation and engagement in SWAL (desk-free) and SWAL plus desk groups correlated with reduced sitting time (30.9 and 75.6 fewer minutes/day, respectively).
• These reductions were more pronounced than those observed in complete case analyses.

Conclusions:

• While intervention delivery varied, higher engagement levels were associated with superior outcomes in reducing sitting time.
• The findings underscore the importance of maximizing intervention implementation and engagement for effectiveness.
• The SWAL program demonstrates potential for reducing sedentary behavior in the workplace.