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1000 Titel
  • MET-values of standardised activities in relation to body fat: studies in pregnant and non-pregnant women
1000 Autor/in
  1. Forsum, Elisabet |
  2. Janerot-Sjöberg, Birgitta |
  3. Löf, Marie |
1000 Erscheinungsjahr 2018
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2018-06-20
1000 Erschienen in
1000 Quellenangabe
  • 15:45
1000 Copyrightjahr
  • 2018
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.1186/s12986-018-0281-z |
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6011259/ |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • BACKGROUND: Physical activity is associated with health in women. Published MET-values (MET: metabolic equivalent of task) may assess physical activity and energy expenditure but tend to be too low for subjects with a high total body fat (TBF) content and therefore inappropriate for many contemporary women. The MET-value for an activity is the energy expenditure of a subject performing this activity divided by his/her resting energy expenditure, often assumed to be 4.2 kJ/kg/h. Relationships between TBF and MET have been little studied although overweight and obesity is common in women. Available data indicate that MET-values decrease during pregnancy but more studies in pregnant contemporary women are needed. SUBJECTS AND METHODS: Using indirect calorimetry we measured energy expenditure and assessed MET-values in women, 22 non-pregnant (BMI: 18–34) and 22 in gestational week 32 (non-pregnant BMI: 18–32) when resting, sitting, cycling (30 and 60 watts), walking (3.2 and 5.6 km/h) and running (8 km/h). Relationships between TBF and MET-values were investigated and used to predict modified MET-values. The potential of such values to improve calculations of total energy expenditure of women was investigated. RESULTS: The resting energy expenditure was below 4.2 kJ/kg/h in both groups of women. Women in gestational week 32 had a higher resting energy metabolism (p < 0.001) and 7–15% lower MET-values (p < 0.05) than non-pregnant women. MET-values of all activities were correlated with TBF (p < 0.05) in non-pregnant women and modified MET-values improved estimates of total energy expenditure in such women. In pregnant women, correlations (p ≤ 0.03) between TBF and MET were found for running (8 km/h) and for walking at 5.6 km/h. CONCLUSIONS: Our results are relevant when attempts are made to modify the MET-system in contemporary pregnant and non-pregnant women. MET-values were decreased in gestational week 32, mainly due to an increased resting energy metabolism and studies describing how body composition affects the one MET-value (i.e. the resting energy metabolism in kJ/kg/h) during pregnancy are warranted. Studies of how pregnancy and TBF affect MET-values of high intensity activities are also needed. Corrections based on TBF may have a potential to improve the MET-system in non-pregnant women.
1000 Sacherschließung
lokal Women
lokal Body fat
lokal Pregnancy
lokal Physical activity
lokal Energy expenditure
lokal Metabolic equivalent
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://orcid.org/0000-0001-9060-0066|https://frl.publisso.de/adhoc/uri/SmFuZXJvdC1TasO2YmVyZywgQmlyZ2l0dGEg|https://frl.publisso.de/adhoc/uri/TMO2ZiwgTWFyaWU=
1000 Label
1000 Förderer
  1. Svenska Forskningsrådet Formas |
  2. Länsstyrelsen Östergötland |
  3. Magnus Bergvalls Stiftelse |
  4. Fredrik och Ingrid Thurings Stiftelse |
  5. Svenska Läkaresällskapet |
1000 Fördernummer
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1000 Förderprogramm
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1000 Dateien
1000 Förderung
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    1000 Förderer Svenska Forskningsrådet Formas |
    1000 Förderprogramm -
    1000 Fördernummer -
  2. 1000 joinedFunding-child
    1000 Förderer Länsstyrelsen Östergötland |
    1000 Förderprogramm -
    1000 Fördernummer -
  3. 1000 joinedFunding-child
    1000 Förderer Magnus Bergvalls Stiftelse |
    1000 Förderprogramm -
    1000 Fördernummer -
  4. 1000 joinedFunding-child
    1000 Förderer Fredrik och Ingrid Thurings Stiftelse |
    1000 Förderprogramm -
    1000 Fördernummer -
  5. 1000 joinedFunding-child
    1000 Förderer Svenska Läkaresällskapet |
    1000 Förderprogramm -
    1000 Fördernummer -
1000 Objektart article
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1000 @id frl:6417590.rdf
1000 Erstellt am 2019-11-19T13:05:55.591+0100
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1000 Zuletzt bearbeitet Tue Nov 19 13:08:12 CET 2019
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1000 Oai Id
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