Segmental Bioelectrical Impedance Analysis of the Body Composition of Affected and Unaffected Limbs After Hemiparetic Stroke.

Objective: The aim of the study was to analyze differences in body composition between affected and unaffected limbs using segmental bioelectrical impedance analysis in hemiparetic stroke patients.

Design: The segmental bioelectrical impedance analysis results and body composition of 213 hospitalized hemiparetic stroke patients were retrospectively reviewed. Subjects were divided into acute, subacute, and chronic groups according to the period after the onset of stroke. Segmental lean mass and segmental body water values were compared between affected and unaffected upper and lower limbs in all subjects and in subgroups. The mean differences of body compositions between the affected and unaffected limbs between the three groups were also compared.

Results: No significant differences in segmental lean mass and segmental body water values were observed between the affected and unaffected upper and lower limbs in total and in three subgroups. The mean differences in segmental lean mass and segmental body water values between the affected and unaffected upper limbs in the chronic group were larger than those in the acute and subacute groups.

Conclusions: There were no significant differences in body composition between affected and unaffected limbs in patients with hemiparetic stroke. The differences in body composition in the affected and unaffected upper limbs in chronic stroke patients were larger than those in acute and subacute stroke patients. Further longitudinal studies are needed.