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The Physical Activity at Work (PAW) Program in Thai Office Workers: Mixed Methods Process Evaluation Study.

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Summary
This summary is machine-generated.

Workplace interventions to reduce sedentary time showed limited success due to low uptake of movement breaks. Factors like workload and ineffective support hindered participation, despite high fidelity.

Keywords:
movement breaksphysical activityprocess evaluationsedentary behaviorworkplace

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Area of Science:

  • Occupational health
  • Behavioral science
  • Public health interventions

Background:

  • Multicomponent workplace interventions aim to decrease sedentary behavior and increase physical activity in office workers.
  • The Physical Activity at Work (PAW) trial, a workplace intervention, yielded inconclusive results on sedentary time reduction after 6 months.
  • Low uptake of movement breaks, the intervention's core component, contributed to the inconclusive outcomes.

Purpose of the Study:

  • To investigate the factors influencing the outcomes of the Physical Activity at Work (PAW) cluster randomized trial.
  • To evaluate the recruitment, context, implementation, and mechanisms of impact of the PAW intervention.

Main Methods:

  • A mixed-methods study design, guided by the Medical Research Council's framework for process evaluation.
  • Data collection included accelerometers, pedometers, questionnaires, on-site monitoring, and focus group discussions.
  • Quantitative analysis used linear mixed effects models, complemented by qualitative analysis of focus groups.

Main Results:

  • Movement break participation declined after 3 weeks, averaging 12.7 sessions/participant/week initially.
  • Each movement break was associated with reduced sedentary time and increased steps.
  • Higher baseline sedentary time and encouraging leaders increased participation, while out-of-office duties and ineffective environmental support reduced it. High workloads and meetings were significant barriers.

Conclusions:

  • The PAW trial's high fidelity did not translate to significant sedentary time reduction.
  • Contextual challenges, ineffective environmental support, and high workloads, exacerbated by the COVID-19 pandemic, limited movement break uptake.
  • Future interventions should address workload, organizational support, and context-specific barriers for effective sedentary behavior reduction.