On the other hand, WHPP, a passive-based intervention which is reliant on voluntary participation,had a relatively weak effect. In Engbers et al.’s systematic review of environmental modificationsstrategies in WHPP, research studies found no evidence of improvement for health risk factors,including cholesterol levels, BMI, and BP [36]. Further, Lemon et al. also suggested that when there isorganized and systematic management support for the voluntary participation-based WHPP, one couldexpect a larger effect from the program [37]. That is, when an active, intensive intervention program isimplemented and takes into account individual and organizational factors, it can be considered moreeffective for workers’ health promotion [17,38].