Limb fat-free mass and fat mass reference values by dual-energy X-ray absorptiometry (DEXA) in a 20-80 year-old italian population

被引：34

作者：

Coin, Alessandra ^{[1
]}

Giannini, Sandro ^{[2
]}

Minicuci, Nadia ^{[3
]}

Rinaldi, Giulia ^{[1
]}

Pedrazzoni, Mario ^{[4
]}

Minisola, Salvatore ^{[5
]}

Rossini, Maurizio ^{[6
]}

Del Puente, Antonio ^{[7
]}

Inelmen, Emine Meral ^{[1
]}

Manzato, Enzo ^{[1
]}

Sergi, Giuseppe ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Sci Med & Chirurg, Clin Geriatr, I-35128 Padua, Italy

[2] Univ Padua, Dipartimento Sci Med & Chirurg, Med Clin 1, I-35128 Padua, Italy

[3] CNR, Ist Neurosci, Sez Padova, Invecchiamento, Italy

[4] Univ Parma, Ist Med Gen & Terapia Med, I-43100 Parma, Italy

[5] Univ Roma La Sapienza, Dipartimento Med Interna, Rome, Italy

[6] Univ Verona, Unita Reumatol, I-37100 Verona, Italy

[7] Univ Naples Federico II, Dipartimento Reumatol, I-80138 Naples, Italy

来源：

CLINICAL NUTRITION | 2012年 / 31卷 / 04期

关键词：

Fat mass; Fat-free mass; Limb composition; DEXA; Reference range; SKELETAL-MUSCLE MASS; ALL-CAUSE MORTALITY; BODY-COMPOSITION; BIOELECTRICAL-IMPEDANCE; HEALTHY-SUBJECTS; FOLLOW-UP; MEN; WOMEN; ADULTS; WEIGHT;

D O I：

10.1016/j.clnu.2012.01.012

中图分类号：

R15 [营养卫生、食品卫生]; TS201 [基础科学];

学科分类号：

100403 [营养与食品卫生学];

摘要：

Background & aims: To establish reference values for limb composition, fat-free mass (FFM) and fat mass (FM) in Italian adults for gender-specific age brackets 20-80 years old and to assess age-related regional changes in body composition. Methods: A multicenter, retrospective study was conducted on 1571 healthy subjects, 1240 women and 331 men. Regional FFM and FM were measured by dual-energy X-ray absorptiometry. FM was expressed as % of limb weight. Results: FFM in men diminished with age in both arms and legs, with reference ranges (25th-75th percentile) of 3.8-4.6 kg and 10.4-12.2 kg, respectively for 20-29 year-olds, and 3.1-3.9 kg and 8.2-10.4 kg for 70-79 year-olds. Women's arm FFM remained stable with aging (reference values 1.7-2.2 kg), decreasing in their legs (6.2-7.2 kg for 20-29 year-olds, 5.5-6.5 kg for 70-79 year-olds). Limb FM% increased with age in both genders: the reference values were 9-15% (arms) and 12-21% (legs) for 20-29 year-old men, and 19-26% and 19-29%, respectively, for 70-79 year-olds; for women's arms, they were 25-36% for 20-29 year-olds and 36-48% for 70-79 year-olds, while their leg FM remained the same with aging, i.e. 32-40%. Conclusions: These data complete the published reference values for whole body composition, enabling physiological or pathological changes in limb composition to be identified in Caucasian populations living in the Mediterranean area. (C) 2012 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.

引用

页码：506 / 511

页数：6

共 32 条

[1]

Regional fat mass by DXA: High leg fat mass attenuates the relative risk of insulin resistance and dyslipidaemia in obese but not in overweight postmenopausal women [J].