CIAS - Research Center for Anthropology and Health, Department of Life Sciences, University of Coimbra
Friday Afternoon, Forum Suite
This study aim to assess if occupation influences the appearance of entheseal changes in the iliac crest, retroauricular area, ischiatic tuberosity and obturator foramen. Absence or presence of osteophytic and osteolytic lesions was recorded in both hip bones from 130 males (19 to 88 years old) from Lisboa and Coimbra identified skeletal collections.
According to the occupations recorded the individuals were divided in two groups: manual (n = 69) and nonmanual (n = 61). The sample was also divided according to an osteological indicator, the femur robusticity index (50 are robust and 59 are gracile femurs). The individuals from manual and robust groups were considered with physically demanding occupations while the nonmanual and gracile groups represent cases with less demanding activities. The asymmetry and the influence of occupational activities of the entheseal changes were inferred by chi-square test. Osteophytic and osteolytic lesions have no asymmetry when considered both bones from the same individual (p <0.05). The osteophytic lesions in the four areas observed and the osteolytic lesions of the ischial tuberosity does not appear to have been influenced by occupational activity (p> 0.05). For the other osteolytic lesions was impossible to assess the influence of occupational activity because: 1) in the iliac crest the osteolytic lesions (n=2) occurs only in the nonmanual and gracile individuals; 2) they are absent in the retroauricular area, iliac tuberosity and obturador foramen.
In this sample, the occupational activity does not seem to influence the development of entheseal changes in the hip bone.