Assessment of Load Manual Lifting among Shelf-Stoking Workers in Chain Stores: A Cross-Sectional Study.

In Iranian stores, shelf workers, in addition to shelf-stocking, perform diverse tasks, such as working as a cashier, cleaning, barcode reading, labeling goods, and entering the price with the portable data terminal (PDT). Therefore, this study aimed to investigate the prevalence of work-related musculoskeletal symptoms (WMSs) and assess load manual lifting among shelf-stoking workers. This cross-sectional study was conducted among 101 shelf-stoking workers (60 males and 41 females) in chain stores at Shiraz city, Iran.

Objective and subjective evaluation of the use of protective clothing on the thermal strain and mental workload of nurses during the Covid-19 pandemic.

Background: Nurses are among high-risk occupational groups during the outbreak of epidemics. Therefore, these people are required to use personal protective equipment (PPE). Previous studies have shown that the use of personal protective equipment can affect people's thermal strain and mental workload.

Investigating the effect of education based on PRECEDE-PROCEED model on the preventive behaviors of musculoskeletal disorders in a group of nurses.

Background: One of the most important occupational complications that could occur in nurses is musculoskeletal disorders. In this study, we designed an educational intervention based on the PRECEDE-PROCEED model to investigate its effects on a group of nurses on preventive behaviors of musculoskeletal disorders.

Methods: A total of 120 nurses working in Izeh City, Iran, participated in this semi-experimental study.

Determining the effect of environmental factors, work postures and mental workload on musculoskeletal disorders in rescue workers and accidents of one of the water and sewage companies in Iran.

Background: Musculoskeletal disorders are one of the most important problems faced by ergonomists today.

Objective: This study was conducted with the aim of investigating the effect of weather conditions, working conditions and mental workload on musculoskeletal disorders of rescuers and water and sewage company accidents in hot and cold seasons.

Methods: The present study was a longitudinal study that was performed on all employees of rescue and disaster teams of Shiraz Water and Sewerage Company in Iran (184 people) by census.

The spatiotemporal gait parameters among people with visual impairment: A literature review study.

Gait is an individual's walking pattern, and it is a significant part of daily living activities. Quantitative gait assessments, like spatiotemporal parameters (STPs), are related to the functional conditions to provide useful information. This study reviewed the comprehensive differences in spatiotemporal gait variability measures between visually impaired people and the sighted.

Knee Extension Exercise Effects on Physiological and Psychophysical Performance: Normal Weight Versus Obese Office Workers.

Background: Knee extension exercise is useful and practical for obese and overweight people as this form of exercise is effective in minimizing body weight loading on joints and improving the body's physiological function. This study aimed to compare the physiological and psychophysical parameters of office workers while computer-based working in an active workstation equipped with an active footrest (AFR) prototype with a mechanism for performing knee extension exercises in a sitting position, and also to compare the physiological and psychophysical parameters among normal-weight and obese office workers.

Methods: In this quasi-experimental study, the physiological parameters of heart rate (HR) and energy expenditure (EE) (measured with the Fitbit Charge HR smartwatch) were measured in two cross-over random sessions for 32 office workers (16 normal-weight and 16 obese) aged 28 to 50 years ( = 42.

Effect of a Developed Nursing Stretch Break Application on Work-Related Musculoskeletal Complications and Fatigue among Nurses: An Interventional Study.

Objective: The present study aimed to develop Nursing Stretch Break (NSB) application to relieve work-related musculoskeletal complications and fatigue among hospital nurses.

Methods: This interventional study was conducted among 71 nurses (15 men and 56 women with a mean age of 33.32 ± 6.

Investigating the short-term effects of using full-body hospital personal protective equipment and changes in physical workload intensity on human physiological and cognitive performance.

The present study investigated the short-term effects of using Personal Protective Equipment (PPE) and physical workload intensity on human physiological and cognitive performance among 21 males and 19 females. PPE1 consisted of a medical coverall and surgical mask, while PPE2 consisted of impermeable full-body coverall, shoe covers, latex gloves, N95 mask, and face shield. Objective assessments were heart rate, energy expenditure, core body temperature, clothing microclimate temperature and humidity, and cognitive performance were the continuous performance test and N-Back test.

Developing a Decision Aid Tool for selecting pen-paper observational ergonomics techniques: a quasi-experimental study.

Background: A significant error that may occur during ergonomic risk assessment and invalidate assessment reliability corresponds to technique selection. This study aimed to develop a new tool called the Decision Aid Tool (DAT) to reduce pen-paper observational technique selection errors.

Methods: This quasi-experiment before-after study was performed in three phases.

A Mixed-Methods Investigation of Occupational Health Specialists' Knowledge and Application of Pen-and-Paper Observational Methods for Ergonomics Assessment.

OCCUPATIONAL APPLICATIONSErgonomic risk assessment is a key step in managing work-related musculoskeletal disorders. Diverse assessment methods exist, and errors may occur if inappropriate methods are selected. Understanding the level of knowledge, how to use methods, and exploring factors affecting erroneous usage of these methods, can provide useful information for health and safety regulatory authorities and decision-makers to identify problems and determine an action plan to eliminate them.

Physical and psychological workloads and their association with occupational fatigue among hospital service personnel.

Background: Physical and psychological workloads are a vital issue in the workplace. This study aimed to investigate the association between physical and psychological workloads and occupational fatigue among Iranian hospital service personnel. In Iran, hospital service personnel refers to a group of healthcare workers who undertake a range of duties, such as moving and carrying the hospital waste, transporting patients by wheelchair or gurney to the operating room, x-ray department, other wards, or other locations around the facility, performing cleaning tasks such as changing linens, mopping floors, and sterilizing equipment, and following infection control procedures to reduce the risk of spreading germs within the hospital setting.

Adverse Effects of Sit and Stand Workstations on the Health Outcomes of Assembly Line Workers: A Cross-sectional Study.

Introduction: Sitting and standing workstations can affect individual's health outcomes differently. This study aimed to assess the effects of sit and stand workstations on energy expenditure and blood parameters, including glucose and triglyceride, musculoskeletal symptoms/pain and discomfort, fatigue, and productivity among workers of assembly line of a belt factory.

Methods: This cross-sectional study was conducted on 47 male assembly line workers (24 workers in sitting workstation and 23 workers in standing workstation) with at least one year of working experience.

Application of the HEART method to enhance patient safety in the intensive care unit.

Background: The intensive care unit (ICU) is a complex, dynamic, high stress and time-sensitive place. While a variety of rules and regulations provided to reduce medication errors in recent years, many studies have emphasized that medication errors still happen.

Objective: The purpose of this investigation is to predict, reveal and assess medication errors among surgical intensive care unit (SICU) nurses.

Comparison of physical workload and physical work capacity among municipality cleaners in Shiraz to determine number of workers needed to counterbalance physical workload.

Background: Assessing physical workload is the most important step in deciding whether a workload is high and adopting appropriate control strategies to reduce physical workload. This study aimed to compare physical workload and Physical Work Capacity (PWC) among municipality cleaners in Shiraz to determine the number of workers needed to counterbalance physical workload.

Methods: The present cross-sectional study was performed on 97 municipality cleaners in Shiraz.

Designing and usability testing of a new prototype active footrest for knee extension exercise among office workers.

The active factor along with light exercise can reduce static muscle work and increase muscle flexibility and endurance. Accordingly, this study aimed to design and prototype a new active footrest, implemented in conventional sitting workstations, and to test its usability among office workers. The steps taken to design and prototype the active footrest were: selection of an exercise appropriate for goals of ergonomic interventions; idea development; selection of the best conceptual design; design with SOLIDWORKS version 2016; and fabrication of a prototype.

Investigation of office workers' sitting behaviors in an ergonomically adjusted workstation.

Common ergonomic office workstations are designed for a few optimum postures. Nonetheless, sitting is a dynamic activity and the ideal sitting posture is rarely maintained in practice. Therefore, the present study aimed to investigate the sitting behavior of office workers in an actual working environment using ergonomically adjusted workstations to examine whether they promote maintaining appropriate sitting postures.

Does food insecurity affect musculoskeletal symptoms, fatigue, and productivity of municipality cleaners? A cross-sectional study.

Background: Municipality cleaners are exposed to food insecurity, Musculoskeletal Symptoms (MSs), and fatigue.

Objective: This study aimed to investigate the effect of food insecurity on MSs, fatigue, and productivity among municipality cleaners.

Methods: This study was conducted on 399 Iranian male municipality cleaners with at least one year of working experience.

Work-related musculoskeletal symptoms among Iranian nurses and their relationship with fatigue: a cross-sectional study.

Background: The present study aimed to determine the prevalence of work-related musculoskeletal symptoms (WMSs), identify potential factors associated with WMSs, and determine the association between WMSs and fatigue among nurses.

Methods: This cross-sectional study was carried out among 500 Iranian nurses. Data was gathered by the 1) Persian version of the Nordic musculoskeletal questionnaire (P-NMQ) to examine WMSs, and 2) Persian version of the Multidimensional Assessment of Fatigue (P-MAF) Scale to evaluate fatigue among the study population.

Ergonomic Design of Manual Assembly Workstation Using Digital Human Modeling.

Background: Manual assembly workers are exposed to risk factors of musculoskeletal disorders. The most important risk factor among the workers is static and awkward posture. This study aimed to the ergonomic design of manual assembly workstation using Digital Human Modeling (DHM).

Investigating association between job stress dimensions and prevalence of low back pain among hospital nurses.

Background: There are a few studies conducted on job stress dimensions and their relationship with Low Back Pain (LBP) among Iranian nurses.

Objective: The aim of the current study was to investigate the association between job stress dimensions assessed via Demand-Control-Social Support (DCS) and Effort-Reward Imbalance (ERI) models and prevalence of LBP among Iranian hospital nurses.

Methods: In this cross-sectional study, 495 randomly selected nurses of Shiraz University of Medical Sciences (SUMS) participated.

Common errors in selecting and implementing pen-paper observational methods by Iranian practitioners for assessing work-related musculoskeletal disorders risk: a systematic review.

This study aimed to determine the types and frequency of pen-paper observational methods (OMs) used by Iranian practitioners and to identify their errors in selecting and implementing these methods. This was a systematic review and analytical study of papers in which the OMs had been used. Scientific databases were analyzed from September 1970 to September 2018.

Cognitive and skill performance of individuals at sitting versus standing workstations: a quasi-experimental study.

This study aimed to assess cognitive and skill performance at sitting and standing workstations among students from Shiraz University of Medical Sciences. Forty students (20 females and 20 males) participated in this quasi-experimental study. Tests were performed among randomly selected participants over two consecutive days: day 1, the Beck depression inventory and Beck anxiety inventory were used to assess the severity of depression and anxiety in the study participants, respectively, and Raven's general intelligence test was used to measure intelligence quotient; day 2, five performance assessment tests (cognitive performance assessment tests '-back', 'Stroop' and 'advanced reaction time'; skill performance assessment tests 'two-arm coordination' and 'Purdue pegboard') were randomly selected and presented to individuals at each workstation (sitting and standing workstations).

Work-related Musculoskeletal Symptoms among Agricultural Workers: A Cross-sectional Study in Iran.

: In Iran, as in most developing countries, agriculture is considered a hazardous industry. Musculoskeletal disorders (MSD) have been shown to be the most common occupational injury among farmers. The present study was carried out among agricultural workers of Fars province, Iran to determine the prevalence of musculoskeletal symptoms and to assess working postures and ergonomic working conditions to identify the major risk factors associated with MSD.

Proper sit-stand work schedule to reduce the negative outcomes of sedentary behavior: a randomized clinical trial.

This study aimed to recommend an appropriate sit-stand schedule among office workers. The participants were randomly allocated into Time Regime 1 (TR1), Time Regime 2 (TR2) and Control (C) groups. A sit-stand workstation was provided to the TR1 and TR2 groups.