Effects of dietary and lifestyle on bone mineral density of elderly man

Objective To evaluate the effects of lifestyle factors on bone mineral density(BMD)of elderly man for the prevention of osteoporosis.Methods A total of 286 healthy man aged 50-79 were interviewed to obtain information on their lifestyle.The subjects were divided into three groups(A,B,C)according their daily in take of calcium from low to high and their spinal BMD and femoral neck BMD were dete rmined with DEXA scan.Results The spinal BMD and femoral neck BMD of group C were higher than that of group A(P<0.01)for subjects at age of 60-69.The man doing physical exercise constantly had higher BMD than those seldom doing(P<0.05).Conclusion The ingestion of abundant calciumis help ful to enhance BMD.Drinking and protein in take have no obvious effect on BMD.Smoking can cause decrease of BMD.Physical exercises is help ful to enhance BMD.