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Regional body composition and functional impairment in patients with myotonic dystrophy
Author(s) -
Pruna Lelia,
Chatelin Jerome,
PascalVigneron Veronique,
Kaminsky Pierre
Publication year - 2011
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.22099
Subject(s) - myotonic dystrophy , medicine , body mass index , mass index , hypertriglyceridemia , fat mass , cardiology , sarcopenia , lean body mass , physical medicine and rehabilitation , physical therapy , body weight , triglyceride , cholesterol
In this study we determined regional body composition in myotonic dystrophy (DM1) and able‐bodied controls and evaluated the relationship between fat and lean tissue mass and functional impairment in DM1 patients. Methods: Dual‐energy X‐ray absorptiometry (DEXA) was used to obtain regional measurements of fat‐free mass index (FFMI) and fat mass index (FMI) in 48 DM1 and anthropometrically matched control pairs. Results: DM1 patients had lower regional FFMI and higher FMI than controls ( P < 0.01–0.001). In DM1 patients, total FMI increased significantly with increased muscular disability rating, decreased motor function measurement, and with both decreasing vital capacity and total lung capacity. Hypertriglyceridemia correlated with increasing FMI. Conclusions: Regional FFMI is decreased in DM1, whereas FMI is underestimated by body mass index and is negatively correlated with patients' functional capacity. DEXA may provide valuable supporting evidence in the management of DM1. Muscle Nerve, 2011