超重受试者次最大摄氧量、详细身体成分与静息能量消耗之间的关系。

Relationship between submaximal oxygen uptake, detailed body composition, and resting energy expenditure in overweight subjects.

作者信息

Pourhassan Maryam, Eggeling Benjamin, Schautz Britta, Johannsen Maike, Kiosz Dieter, Glüer Claus-Christian, Bosy-Westphal Anja, Müller Manfred James

机构信息

Institute of Human Nutrition and Food Science, Christian-Albrechts University, Kiel, Germany.

出版信息

Am J Hum Biol. 2015 May-Jun;27(3):397-406. doi: 10.1002/ajhb.22666. Epub 2014 Nov 28.

DOI:10.1002/ajhb.22666

PMID:25430076

Abstract

OBJECTIVE

We investigated the impact of detailed body composition on aerobic fitness to determine whether regional components of fat mass have independent effects on VO2submax , and whether VO2submax and detailed body composition independently explain variation in REE.

METHODS

71 healthy adults (80% female, 20% male, BMI 28.2-43.8 kg/m(2) ) were investigated. Body composition was measured by the four-compartment model together with whole body magnetic resonance imaging (MRI) to assess high and low metabolic rate organs and regional fat depots. VO2submax was estimated at 75% of predicted maximum heart rate.

RESULTS

There was a strong association between VO2submax and FFM and all organ masses except for heart. Skeletal muscle mass accounted for 34.8% of the variance in VO2submax . In addition, subcutaneous adipose tissue (SAT) of extremities explained additional 14.4%. FFM and FM explained 71.3% of the variance in REE. Including the components of FFM and FM, the explained variance in REE increased by about 5.8%; skeletal muscle mass explained 70.0% of the variance in REE and kidney and liver masses explained additional 7.1%. VO2submax correlated with REE. Taking into account body composition, VO2submax did not add to the variance in REE.

CONCLUSION

FFM is a determinant of both VO2submax and REE. Modeling either REE or VO2submax from individual components of FFM, about 77.1% of variance in REE (by muscle, liver and kidneys mass) and 34.8% of variance in VO2submax (by skeletal muscle mass) could be explained. FM explained additional variance in REE, whereas SAT of extremities added to the variance in VO2submax only.

摘要

目的

我们研究了详细的身体成分对有氧适能的影响，以确定脂肪量的区域组成部分对最大摄氧量（VO₂max）是否有独立影响，以及VO₂max和详细的身体成分是否能独立解释静息能量消耗（REE）的变化。

方法

对71名健康成年人（80%为女性，20%为男性，体重指数28.2 - 43.8 kg/m²）进行了研究。采用四成分模型结合全身磁共振成像（MRI）测量身体成分，以评估高代谢率和低代谢率器官以及区域脂肪储存。VO₂max按预测最大心率的75%进行估算。

结果

VO₂max与去脂体重（FFM）以及除心脏外的所有器官质量之间存在很强的关联。骨骼肌质量占VO₂max变异的34.8%。此外，四肢的皮下脂肪组织（SAT）额外解释了14.4%的变异。FFM和脂肪量（FM）解释了REE变异的71.3%。纳入FFM和FM的组成部分后，REE的解释变异增加了约5.8%；骨骼肌质量解释了REE变异的70.0%，肾脏和肝脏质量额外解释了7.1%。VO₂max与REE相关。考虑到身体成分后，VO₂max并未增加REE的变异。