Examination of the reliability of the portable calorimeter

Shoji Igawa, Mikako Sakamaki, Masami Miyazaki

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    1. The present study was performed in order to determine the reliablility of the portable calorimeter. 2. Resting energy expenditure (REE) was measured by two different apparatuses: one was the typical gas analyser, the other was the portable calorimeter. 3. Although there are differences among individuals, unless the subject has been exposed to severe physical activity prior to the measurement, a suitable resting time prior to the measurement of resting metabolic rate is 10 min. 4. For the measurement of resting metabolic rate, fluctuations in respiratory quotient (RQ) are extremely small; there is greater fluctuation due to variations in respiration. Therefore, for the screening of energy consumption, the use of a fixed value for RQ is sufficient when measuring only oxygen uptake. 5. Respiratory fluctuations vary from person to person and it is not possible to make stable measurements in 1 or 2 min. Therefore, a suitable measurement time for resting metabolic rate is from 3 to approximately 6 min. 6. The results indicate that this portable calorimeter is a useful apparatus for measuring REE in the field.

    Original languageEnglish
    JournalClinical and Experimental Pharmacology and Physiology
    Volume29
    Issue numberSUPPL. 4
    DOIs
    Publication statusPublished - 2002

    Fingerprint

    Basal Metabolism
    Energy Metabolism
    Individuality
    Respiration
    Gases
    Oxygen

    Keywords

    • Indirect calorimetry
    • Portable calorimeter
    • Resting energy expenditure

    ASJC Scopus subject areas

    • Physiology
    • Pharmacology (medical)
    • Pharmacology, Toxicology and Pharmaceutics(all)

    Cite this

    Examination of the reliability of the portable calorimeter. / Igawa, Shoji; Sakamaki, Mikako; Miyazaki, Masami.

    In: Clinical and Experimental Pharmacology and Physiology, Vol. 29, No. SUPPL. 4, 2002.

    Research output: Contribution to journalArticle

    @article{87f3f9e071ff4236839c9c58aae05f2a,
    title = "Examination of the reliability of the portable calorimeter",
    abstract = "1. The present study was performed in order to determine the reliablility of the portable calorimeter. 2. Resting energy expenditure (REE) was measured by two different apparatuses: one was the typical gas analyser, the other was the portable calorimeter. 3. Although there are differences among individuals, unless the subject has been exposed to severe physical activity prior to the measurement, a suitable resting time prior to the measurement of resting metabolic rate is 10 min. 4. For the measurement of resting metabolic rate, fluctuations in respiratory quotient (RQ) are extremely small; there is greater fluctuation due to variations in respiration. Therefore, for the screening of energy consumption, the use of a fixed value for RQ is sufficient when measuring only oxygen uptake. 5. Respiratory fluctuations vary from person to person and it is not possible to make stable measurements in 1 or 2 min. Therefore, a suitable measurement time for resting metabolic rate is from 3 to approximately 6 min. 6. The results indicate that this portable calorimeter is a useful apparatus for measuring REE in the field.",
    keywords = "Indirect calorimetry, Portable calorimeter, Resting energy expenditure",
    author = "Shoji Igawa and Mikako Sakamaki and Masami Miyazaki",
    year = "2002",
    doi = "10.1046/j.1440-1681.29.s4.6.x",
    language = "English",
    volume = "29",
    journal = "Clinical and Experimental Pharmacology and Physiology",
    issn = "0305-1870",
    publisher = "Wiley-Blackwell",
    number = "SUPPL. 4",

    }

    TY - JOUR

    T1 - Examination of the reliability of the portable calorimeter

    AU - Igawa, Shoji

    AU - Sakamaki, Mikako

    AU - Miyazaki, Masami

    PY - 2002

    Y1 - 2002

    N2 - 1. The present study was performed in order to determine the reliablility of the portable calorimeter. 2. Resting energy expenditure (REE) was measured by two different apparatuses: one was the typical gas analyser, the other was the portable calorimeter. 3. Although there are differences among individuals, unless the subject has been exposed to severe physical activity prior to the measurement, a suitable resting time prior to the measurement of resting metabolic rate is 10 min. 4. For the measurement of resting metabolic rate, fluctuations in respiratory quotient (RQ) are extremely small; there is greater fluctuation due to variations in respiration. Therefore, for the screening of energy consumption, the use of a fixed value for RQ is sufficient when measuring only oxygen uptake. 5. Respiratory fluctuations vary from person to person and it is not possible to make stable measurements in 1 or 2 min. Therefore, a suitable measurement time for resting metabolic rate is from 3 to approximately 6 min. 6. The results indicate that this portable calorimeter is a useful apparatus for measuring REE in the field.

    AB - 1. The present study was performed in order to determine the reliablility of the portable calorimeter. 2. Resting energy expenditure (REE) was measured by two different apparatuses: one was the typical gas analyser, the other was the portable calorimeter. 3. Although there are differences among individuals, unless the subject has been exposed to severe physical activity prior to the measurement, a suitable resting time prior to the measurement of resting metabolic rate is 10 min. 4. For the measurement of resting metabolic rate, fluctuations in respiratory quotient (RQ) are extremely small; there is greater fluctuation due to variations in respiration. Therefore, for the screening of energy consumption, the use of a fixed value for RQ is sufficient when measuring only oxygen uptake. 5. Respiratory fluctuations vary from person to person and it is not possible to make stable measurements in 1 or 2 min. Therefore, a suitable measurement time for resting metabolic rate is from 3 to approximately 6 min. 6. The results indicate that this portable calorimeter is a useful apparatus for measuring REE in the field.

    KW - Indirect calorimetry

    KW - Portable calorimeter

    KW - Resting energy expenditure

    UR - http://www.scopus.com/inward/record.url?scp=0036411752&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0036411752&partnerID=8YFLogxK

    U2 - 10.1046/j.1440-1681.29.s4.6.x

    DO - 10.1046/j.1440-1681.29.s4.6.x

    M3 - Article

    VL - 29

    JO - Clinical and Experimental Pharmacology and Physiology

    JF - Clinical and Experimental Pharmacology and Physiology

    SN - 0305-1870

    IS - SUPPL. 4

    ER -