Differences In Body Composition And Clinical Examination Indicators Associated With Sarcopenia In Elderly Men

Aim:To investigate differences in body composition and clinically common-seen examination indicators associated with sarcopenia in elderly men.Methods:Data was collected from a total of 161 elderly men.Men with sarcopenia were distinguished by the criterion of the Asian Working Group.Body composition was measured by whole body scanning with a dual-energy X-ray absorptiometry.Bone mass,fat mass and total mass of extremities were analyzed.The values of clinical examination indicators were collected for assessment.Results:Sarcopenic group’s mass of upper limb was significantly lower than that of non-sarcopenic group,but the mass of lower limb was not significantly different.The bone mass of the limbs were significantly different between two groups.The weight of the right hand and lower extremities was significantly higher in sacopenic group.Among the differences between two sides of body,the muscle mass was the most obvious.Among clinical examination indicators,only hemoglobin and albumin had significantly difference between two groups.The ROC curve showed that the AUC of hemoglobin was 0.594(P = 0.045)and the cut-off value was 104.5g/L.The AUC of albumin was 0.593(P = 0.045)and the cut-off value was 38.45g/L.Conclusion:Sarcopenic group’s mass of the upper limbs were significantly lower and their bone mass of the limbs were significantly decreased.The weight of fat was significantly higher in sacopenic group.Among the differences between two sides of body,muscle mass was the most obvious.In the blood test,only hemoglobin and albumin of sarcopenic group were significantly reduced,which suggested that clinicians should be particularly wary of sarcopenia in the elderly with hemoglobin<105g/L and albumin<38g/L.