Data of range of thoracic kyphosis and lumbar lordosis between line and staff personnel of armed forces in Kermanshah, Iran

Two hundred people of the line (new and experienced) and staff (new and experienced) armed forces consisted of the samples. Using a flexible ruler, spinal curves (thoracic kyphosis and lumbar lordosis) were measured. The biggest kyphosis and lordosis values were seen in experienced staff and experienced line groups and the smallest kyphosis and lordosis values were seen in new staff and experienced staff groups, respectively. One-way repeated-measures analysis of variance (ANOVA) was carried out on the thoracic kyphosis and lumbar lordosis measures of the line and the staff groups to assess differences between groups and the post hoc test was carried out to define the group that was significantly distinct from the others.


a b s t r a c t
Two hundred people of the line (new and experienced) and staff (new and experienced) armed forces consisted of the samples. Using a flexible ruler, spinal curves (thoracic kyphosis and lumbar lordosis) were measured. The biggest kyphosis and lordosis values were seen in experienced staff and experienced line groups and the smallest kyphosis and lordosis values were seen in new staff and experienced staff groups, respectively. One-way repeated-measures analysis of variance (ANOVA) was carried out on the thoracic kyphosis and lumbar lordosis measures of the line and the staff groups to assess differences between groups and the post hoc test was carried out to define the group that was significantly distinct from the others.  Table   Subject  Health and medical sciences  Specific subject area  Orthopaedics, Sports Medicine and Rehabilitation  Type of data  Text, Tables, Excel workbook  How data were acquired The thoracic kyphosis and lumbar lordosis were measured using a flexible ruler.

Data format
Raw and Analyzed Description of data collection For measuring the kyphosis, participants were asked to stand comfortablly. Spinous processes of the 2nd and 12th thoracic vertebrae (T2 and T12) were determined. A flexible ruler was placed on the thoracic curve covering the two marked points. Keeping this position, a second coworker marked the adjacent points to T2 and T12 spinous processes on the ruler. The curve was drawn and those two points were reflected on the paper. A straight line was drawn connecting T2 and T12 points. The length of this line and the distance between the deepest point of the curve and the line were measured. Using them and the equation below, the magnitude of the angle of the thoracic curve was measured.
The same process was done for the Lordosis measurement unless the spinous processes of L1 and L5 were marked and measured instead.

Value of the Data
• The data provide insights into the prevalence of kyphosis and lordosis in staff personnel of the armed forces. • Researchers and health policymakers and military commanders can benefit from these data to propose new physical behaviors for staff personnel health. • This study can be one of the first steps in understanding the status of spinal curves in personnel of the armed forces. Next studies from other parts of the world help to have a better insight into a global status. • This data can be linked with other available datasets, to provide insight into what factors influence the prevalence of kyphosis and lordosis in staff.

Data Description
The data presented in this paper were tables and datasets. The military and security forces of nations depend partly on army personnel's physical performance and health. Many factors can affect their physical health and especially their postural alignment such as work conditions, the style of doing physical works, bad and sustained postures, wrong movement patterns, doing military operations, parades, overweight, and so on [ 1 , 2 ]. So it is necessary to assess these personnels regularly about their health including physical health and posture [2] . The data obtained are presented in an excel workbook. The main characteristics of the subjects was presented in Table 1 . In addition, the difference in kyphosis and lordosis between the two groups and the normal range of thoracic kyphosis and lumbar lordosis in staff and line personnel were presented in Tables 2 and 3 , respectively. Demographic characteristics and the amount of spinal curves for 200 subjects (50 in each group) are presented in Table 1 . Unite of lordosis and kyphosis = Degree.

Table 2
P -value for difference in kyphosis and lordosis between the two groups.

Instrument of data collection
The study design was descriptive and cross-sectional. Army staff working in Kermanshah, a city in the west of Iran was the population of the study. Four groups were defined: 1-Experienced line worker group with more than 5 years period of working (EL), 2-New line worker group with less than one year period of working (NL), 3-Experienced staff worker group with more than 5 years period of working (ES), 4-. New staff worker group with less than one year period of working (NS). As no related study on army staff was found, the sample size was defined as 10% of the total 20 0 0 population (200 people). This number included 50% for the line and 50% for the staff group. Using the available sampling method, from all 4 garrisons located in Kermanshah, subjects were chosen for all groups. The sampling rate for each garrison was in proportion to its population. Using a flexible ruler, thoracic kyphosis and lumbar lordosis for all subjects were measured as it is explained in our previous paper [3] .
One-way analysis of variance (ANOVA) was carried out on the thoracic kyphosis and lumbar lordosis measures of line and staff groups to assess differences between groups and a post hoc test was carried out to define the group that was significantly distinct from the others.

Data presentation
The biggest kyphosis and lordosis values (in degree) were seen in the ES (43.50) and the EL (40.08) and the smallest kyphosis and lordosis values were seen in the NS (38.73) and the ES (36.48) groups, respectively. With the one-way repeated-measures ANOVA, we found a difference between thoracic kyphosis in the experienced staff workers group and the other three groups ( p < 0.05). There was no difference in lumbar lordosis between groups ( p < 0.05) ( Table 2 ). As ± two standard deviations from the mean were defined as "normal," [4] (which includes 95% of the population), normal ranges of thoracic kyphosis and lumbar lordosis in the subjects in the four garrisons were calculated and are presented in Table 3 .

Ethics Considerations
Ethical approval was obtained from Baghyatollah Medical Sciences University . Written informed consent was obtained from study participants and their identity was kept confidential.

Declaration of Competing Interest
The authors declare that they have no known competing financial interests or personal relationships which have or could be perceived to have influenced the work reported in this article.