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Differences in resting metabolic rate between paraplegic and able-bodied subjects are explained by differences in body composition.

BACKGROUND: Little is known about the relation between body composition and energy metabolism in paraplegia. OBJECTIVE: We investigated the relation between body composition and energy metabolism in healthy paraplegics as compared with able-bodied control subjects. We hypothesized that paraplegics w...

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Publicado en:American Journal of Clinical Nutrition Vol. 77; no. 2; pp. 371 - 379
Autores principales: Buchholz AC, McGillivray CF, Pencharz PB
Formato: equations & formulas research tables/charts Journal Article
Publicado: Elsevier B.V. Feb2003
Acceso en línea:Ver este registro en EBSCOhost
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    uiTerm: 106883614
    longDbName: CINAHL Complete
    uiTag: AN
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      jid:
        00029165
        AJC
      jtl: American Journal of Clinical Nutrition
      issn: 00029165
      maglogo: N
    pubinfo:
      dt: Feb2003
      vid: 77
      iid: 2
      pid: 467
      pub: Elsevier B.V.
      place: New York, New York
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        106883614
        2003152094
        10.1093/ajcn/77.2.371
        NLM12540396
        106883614
      ppf: 371
      ppct: 8
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        atl: Differences in resting metabolic rate between paraplegic and able-bodied subjects are explained by differences in body composition.
      aug:
        au:
          Buchholz AC
          McGillivray CF
          Pencharz PB
        affil: Department of Nutritional Sciences, University of Toronto
      sug:
        subj:
          Paraplegia
          Energy Metabolism
          Body Composition
          Comparative Studies
          Basal Metabolic Rate Evaluation
          Cross Sectional Studies
          Adult
          Body Mass Index Evaluation
          Calorimetry
          Body Water Analysis
          Descriptive Statistics
          Male
          Female
          Ontario
          Mathematics
          Thyrotropin Blood
          Power Analysis
          Data Analysis Software
          Chi Square Test
          T-Tests
          Post Hoc Analysis
          Analysis of Variance
          Pearson's Correlation Coefficient
          Step-Wise Multiple Regression
          Body Temperature Regulation
          Funding Source
          Human
          Adult: 19-44 years
          Male
          Female
      ab: BACKGROUND: Little is known about the relation between body composition and energy metabolism in paraplegia. OBJECTIVE: We investigated the relation between body composition and energy metabolism in healthy paraplegics as compared with able-bodied control subjects. We hypothesized that paraplegics would have lower fat-free mass (FFM), body cell mass (BCM), resting metabolic rate (RMR), and thermic effect of feeding (TEF). DESIGN: This cross-sectional study included 34 control subjects and 28 paraplegics (mean age: 29.1 +/- 7.6 and 33.9 +/- 9.2 y, respectively) with body mass indexes (in kg/m(2)) of 23.5 +/- 1.8 and 24.3 +/- 6.0, respectively. We measured RMR and TEF with indirect calorimetry, total body water with deuterium dilution, and extracellular water with corrected bromide space. We calculated FFM (total body water/0.732) and BCM [(total body water - extracellular water)/0.732)]. RESULTS: FFM was higher in control subjects than in paraplegics (77.2 +/- 7.2% and 69.2 +/- 8.7%, respectively; P = 0.0002), as were BCM (47.4 +/- 6.7% and 35.9 +/- 8.1%, respectively; P < 0.0001) and RMR (7016 +/- 935 and 6159 +/- 954 kJ/d, respectively; P = 0.0007). FFM was the single best predictor of RMR in both groups (r(2) = 0.83 for control subjects and 0.70 for paraplegics, P < 0.0001 for both). RMR adjusted for FFM did not differ significantly between control subjects and paraplegics (6670 +/- 504 and 6588 +/- 501 kJ/d, respectively). TEF also did not differ significantly between control subjects and paraplegics (6.25 +/- 2.2% and 5.53 +/- 1.8% of energy intake, respectively). CONCLUSIONS: FFM, BCM, and RMR, but not obligatory TEF, are lower in paraplegics than in control subjects. RMR does not differ between control and paraplegic subjects after adjustment for FFM, indicating similar metabolic activity in the fat-free compartment of the body.
      pubtype: Academic Journal
      doctype:
        equations & formulas
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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