Quantification of trunk and android lean mass using dual energy x-ray absorptiometry compared to magnetic resonance imaging after spinal cord injury.

ABSTRACT: OBJECTIVE:To determine whether dual energy x-ray absorptiometry (DXA) compared to magnetic resonance imaging (MRI) may accurately quantify trunk lean mass (LM) after chronic spinal cord injury (SCI) and to investigate the relationships between trunk LM, visceral adiposity, trunk fat mass and basal metabolic rate (BMR). DESIGN:Cross-sectional design and correlational analysis. SETTING:Research setting in a medical center. PARTICIPANTS:Twenty-two men with motor complete paraplegia (n?=?14; T4-T11) and tetraplegia (n?=?8; C5-C7) were recruited as part of a clinical trial. INTERVENTIONS:Not applicable. OUTCOME MEASURES:Trunk and android LM were measured using DXA. The volume of six trunk muscle groups were then measured using MRI to quantify trunk LM-MRI. Subcutaneous and visceral adipose tissue (VAT) cross-sectional areas were also measured using MRI. After overnight fast, BMR was evaluated using indirect calorimetry. RESULTS:Trunk LM-DXA (24?±?3.3?kg) and android LM-DXA (3.6?±?0.7?kg) overestimated (P?

SUBMITTER: Rankin KC 

PROVIDER: S-EPMC6718191 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature