## 2 Materials and Methods
### Data Processing  
The initial stage of the study encompassed the acquisition and subsequent processing of the unprocessed accelerometer data. To accomplish this, we employed the ActiLife 5 software (ActiGraph LLC, Pensacola, FL, USA) as our tool of choice. This software provided a comprehensive suite of functionalities that proved instrumental in the manipulation and analysis of the acquired data. Specifically, it facilitated the meticulous removal of non-wear time, which entailed identifying and eliminating periods lasting 60 or more consecutive minutes exhibiting zero counts. Additionally, it allowed for the exclusion of time intervals when the accelerometer was not worn by the participants. The raw data were then subjected to a conversion process utilizing the default filter settings of the ActiLife software, resulting in the transformation of the data into activity counts.  
In order to ascertain the intensity of physical activity, we utilized the activity counts per minute (cpm) as a quantifiable metric. This enabled us to delineate three distincttiers of physical activity intensity: light intensity (200-2689 cpm), moderate intensity (2689-6166 cpm), and vigorous intensity (\(\geq\)6167 cpm).  
It is worth noting that the female healthcare workers participating in the study were explicitly instructed to maintain their usual physical activity patterns while wearing the device. Once the device was returned, we administered a comprehensive questionnaire survey to the participants, focusing on the specific week during which the participants wore the accelerometers. Consistent with the criterion stipulated in the IPAQ questionnaire, only exercise sessions lasting a minimum of 10 min were considered when evaluating the cumulative weekly duration of healthy physical activity.  
In addition to the questionnaire, we requested the participants to diligently maintain daily physical activity logs. These logs served as a detailed record, documenting the duration, nature, and intensity of both occupational and non-occupational physical activities engaged by the participants. Consequently, this meticulous documentation facilitated the categorization of the participants' overall weekly physical activity into two distinct domains: occupational physical activity (oPA), representing physical exertion during working hours, and non-occupational physical activity (noPA), encompassing physical activities performed outside of work-related obligations.  
The interpretation of the obtained results was predicated upon established guidelines delineating healthy levels of physical activity. Central to this analysis was the determination of the percentage of healthcare professionals who successfully adhered to the recommended threshold of 150 min of moderate-to-vigorous physical activity per week.  
Given the distinctive nature of physical activities within healthcare professions and the compelling scientific evidence underscoring the detrimental impact of occupational, physical activity on health outcomes, we deemed it imperative to delineate and evaluate physical activity patterns in terms of their occupational and non-occupational components.