Comparação da densidade mineral óssea entre homens de meia idade que exercem diferentes tipos de atividades profissionais

• Ano de defesa: 2006
• Autor(a) principal: Voser, Rogério da Cunha
• Orientador(a): Souza, Antônio Carlos Araújo de
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul; Porto Alegre
• Palavras-chave em Português: MEDICINA; GERIATRIA; GERONTOLOGIA; IDOSOS; ENVELHECIMENTO; OSSOS - DOENÇAS; DENSIDADE ÓSSEA; HOMEM; PROFISSÕES; ATIVIDADES MOTORAS; OSTEOPOROSE
• Link de acesso: http://hdl.handle.net/10923/4472

AIM: This study aimed at comparing the bone mineral density (BMD) among middle aged men performing different kinds of professional physical activities. METHODS: This observational cross-sectional study, developed at the Bone Density service of São Lucas Hospital from Pontifícia Universidade Católica de Porto Alegre, analysed 59 volunteer men, aging from 50 to 65 years old that work as mailmen, taxi drivers and physicians. Those who presented osteoporosis were excluded, once this disease could be seen as a secondary factor result. It was used the Dual Energy Xray Absorptiometry DXA (QDR 4500 A Hologic Inc. Boston USA) in order to analyse lumbar spine, femur and tibia. HPA data were collected through the questionnaires of Baecke and col. (1982). RESULTS: The comparison of BMD average among professions presented significant difference for all femur sites analysed. The femur neck showed that mailmen and taxi drivers BMD are higher than physicians BMD (p=0,002). Trochanter demonstrated that mailmen BMD is superior to the physicians BMD (p=0,001). Finally, the total femur revealed that mailmen and taxi drivers BMD are significantly different from physicians (p<0,001). Physicians presented bigger prevalence of osteopenia than mailmen and taxi drivers. The scores occupational physical activity (OPA) were significant for mailmen (during 21-30 years old period) in relation to physicians; for mailmen (during 31-50 years old period) in relation to taxi drivers and physicians; and also for mailmen (during last 12 months) in relation to taxi drivers and physicians. The scores of physical exercises practice and leisure activities (PLE) were significant for physicians (during 31-50 years old period and last 12 months) in relation to taxi drivers. The physical activities of locomotion (PAL) presented mailmen with significantly higher scores in relation to taxi drivers. The scores evolution of occupational physical activities (OPA) during life among professions is significantly different (p< 0,001). Mailmen have a different evolution from taxi drivers and physicians, showing an increase in OPA scores during life, while taxi drivers and physicians had a decrease. The evolution of PLE during life, among professions, was not significantly different. The analysis through multiple linear regressions showed that the OPA from 21-30 years, PLE from 21-30 years and BMI were significant variables for L1-L4 BMD. Concerning total femur BMD, PLE from 21- 30 years, OPA for last 12 months and BMI were significant variables and physicians activity showed negative coefficient, revealing to be harmful for this area. The most significant variables for total tibia BMD were PLE from 21-30 years in a positive way and the physicians activity showing a negative relation. CONCLUSION: The professional physical activity and HPA during life improve the increase and preservation of BMD in adult and middle aged men.