## 3 Results
### Health, Ergonomics, and Anthropometry
#### 3.2.2 Work-Related Musculoskeletal Disorders Symptomatology Perception  
Through the application of the Portuguese version of the NMQ, it was possible to gather information regarding the existence and prevalence of fatigue, discomfort, pain, and/or musculoskeletal injuries related to work. This analysis is performed for various body areas, specifically the spinal column (neck, dorsal, and lumbar), upper limbs (shoulders, wrists/hands, and elbows), and lower limbs (hips/thighs, legs/k knees, and ankles/feet) for different time frames, namely, in the last 12 months and the last 7 days, as well as the hindrance in performing normal work tasks (Figure 1). By analyzing the graphical representation in Figure 1, it can be stated that the percentage of reported issues of fatigue, discomfort, or pain in the past 12 months is more pronounced for the anatomical areas of the spinal column, mainly the neck and lumbar region, as well as in the upper limbs, particularly the wrists/hands and shoulders. The neck was identified as the area with the highest reported complaints at 73.6%, followed by the wrists/hands at 72.8% and the lumbar spine at 69.3%. Regarding the percentage of reported issues of fatigue, discomfort, or pain in the last 7 days, the anatomical area of the spinal column shows the highest prevalence, with 45.7% reporting complaints for the neck and 42.1% for the lumbar spine. Following this, the body area most affected by complaints of fatigue, discomfort, or pain in the upper limbs, with 32.1% reporting complaints for the wrists/hands and 31.1% for the shoulders. Regarding the hindrance in performing normal work tasks in the previous 12 months, the highest incidence is in the anatomical area of the spinal column, which is particularly noticeable in the lumbar region at 7.1%, followed by the neck at 5.7%. It is also worth noting that only the anatomical areas of the spinal column and upper limbs, except for the elbows, showed hindrances in performing work. Comparing the percentages of reported \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline  & \multicolumn{2}{c}{**Total Sample**} & \multicolumn{2}{c}{**Female Gender**} & \multicolumn{2}{c}{**Male Gender**} \\ \cline{2-7}  & **n** & **\%** & **n** & **\%** & **n** & **\%** \\ \hline
**Dominant Hand** & & & & & & \\ Right & 88 & 62.9 & 38 & 60.3 & 50 & 64.9 \\ Left & 3 & 2.1 & 0 & 0 & 3 & 3.9 \\ Both & 49 & 35 & 25 & 39.7 & 24 & 31.2 \\ \hline
**BMI Situation** & & & & & & \\ Normal Weight & 73 & 52.1 & 36 & 57.1 & 37 & 48.1 \\ Overview & 53 & 37.9 & 23 & 36.5 & 30 & 39 \\ Obesity Class I & 11 & 7.9 & 2 & 3.2 & 9 & 11.7 \\ Obesity Class II & 3 & 2.1 & 2 & 3.2 & 1 & 1.3 \\ \hline
**Physical Exercise** & & & & & & \\ Yes & 81 & 57.9 & 29 & 46 & 47 & 61 \\ No & 59 & 42.1 & 34 & 54 & 30 & 39 \\ \hline
**Sleep Habits** & & & & & & \\ Between 4 and 6 h & 62 & 44.3 & 27 & 42.9 & 35 & 45.5 \\ Between 7 and 8 h & 75 & 53.6 & 34 & 54 & 41 & 53.2 \\ More than 8 h & 3 & 2.1 & 2 & 3.2 & 1 & 1.3 \\ \hline
**Health Perception** & & & & & & \\ Excellent & 11 & 7.9 & 6 & 9.5 & 5 & 6.5 \\ Very Good & 36 & 25.7 & 11 & 17.5 & 25 & 32.5 \\ Good & 66 & 47.1 & 33 & 52.4 & 33 & 42.9 \\ Reasonable & 24 & 17.1 & 13 & 20.6 & 11 & 14.3 \\ Deficit & 3 & 2.1 & 0 & 0 & 3 & 3.9 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Health habits and lifestyle (n: frequency; %: percentage). complaints of fatigue, discomfort, or pain for the different body areas studied with those prevented from carrying out normal work tasks, it can be said that there is a positive correlation between them. In other words, being prevented from doing work may be related to the high percentages of complaints of fatigue, discomfort, or pain in the same anatomical areas, i.e., due to problems and/or musculoskeletal injuries resulting from these complaints. The intensity of discomfort, fatigue, or pain experienced by individuals in the same anatomical areas was also analyzed, ranging from mild, moderate, and intense to unbearable (Figure 2).