Effectiveness of Workplace Weight Management Interventions: a Systematic Review

Area of Science:

• Occupational Health
• Public Health
• Behavioral Science

Background:

• Workplace weight management programs are increasingly implemented to address obesity.
• Interventions often include diet, physical activity, and behavioral components.
• Evidence on the effectiveness of these workplace interventions is mixed.

Purpose of the Study:

• To systematically review randomized trials of workplace weight management interventions.
• To assess the effectiveness of interventions based on various components and trial characteristics.
• To identify factors influencing the success of workplace obesity reduction strategies.

Main Methods:

• Systematic review of randomized controlled trials.
• Searched databases using keywords for weight management and workplace interventions.
• Included 23 eligible studies with detailed data extraction and quality assessment.
• Analyzed interventions including dietary, physical activity, environmental, behavioral, and incentive-based components.

Main Results:

• Interventions were primarily multicomponent and conducted in the USA and Europe.
• Effectiveness was not linked to geographical region but was highest in 6-12-month trials.
• Weight changes varied widely, with some trials reporting significant 8.8-kg loss and others showing less benefit than control.
• Interventions were implemented across genders and employment types.

Conclusions:

• Some workplace weight management interventions demonstrate clinically significant benefits.
• Further research is required to replicate successful interventions in diverse sociocultural and geographical contexts.
• Optimizing intervention design and duration may enhance effectiveness.