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Validation of a portable indirect calorimeter (Metavine ® ) for measuring energy expenditure in an elderly population
Author(s) -
Kato Masahiko,
Tajika Masahiro,
Miwa Yoshiyuki,
Moriwaki Hisataka
Publication year - 2002
Publication title -
clinical and experimental pharmacology and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 103
eISSN - 1440-1681
pISSN - 0305-1870
DOI - 10.1046/j.1440-1681.29.s4.6.x
Subject(s) - energy expenditure , calorimeter (particle physics) , reliability (semiconductor) , energy metabolism , limits of agreement , medicine , zoology , nuclear medicine , computer science , physics , biology , endocrinology , telecommunications , power (physics) , detector , quantum mechanics
Summary 1. The aim of the present study was to evaluate the usefulness and reliability of a portable indirect calorimeter (Metavine; Vine, Tokyo, Japan). 2. We measured energy expenditure (EE) of elderly people ( n = 191) at nursing homes using both Metavine and an authorized indirect calorimeter (Deltatrac Metabolic Monitor; Datex, Helsinki, Finland) and compared them. 3. Energy expenditure measured by Metavine ® significantly correlated with EE measured by the Deltatrac Metabolic Monitor ( P < 0.001). 4. In particular, Metavine gave almost same results as the Deltatrac Metabolic Monitor, showing an excellent reliability, within the range of EE from 800 to 1500 kcal/day. However EE measured by Metavine below 800 kcal/day or above 1500 kcal/day required correction to agree with EE as measured by the Deltatrac Metabolic Monitor. 5. In conclusion, Metavine is a useful portable calorimeter for measuring EE in elderly people when used with sufficient recognition of its characteristics of data acquisition.