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Energy expenditure economy induced by decrease in lean body mass in anorexia nervosa.
Eur J Clin Nutr. 1989 Nov; 43(11):793-9.EJ

Abstract

In anorexia nervosa, the low energy input associated with the classic overactivity during the malnourished state needs a sparing of energy expended at rest and also during physical activity. Therefore, we measured energy expenditure, both at rest and during moderate bicycling exercise (30W, 6 min), in 11 adult anorectic patients (weight 35.15 +/- 4.30 kg, mean +/- s.d.) at the beginning of their treatment and again after a mean weight gain of about 8.4 kg. During the malnourished state, the resting energy expenditure (REE) was lower than that predicted according to Harris and Benedict (P less than 0.001). Although it was significantly increased after weight gain (P less than 0.05), the REE per kg of lean body mass remained unchanged after repletion. The total oxygen consumption related to exercise remained unchanged after refeeding (2114 +/- 487 ml/15 min, basal vs 2168 +/- 394 ml/15 min, repletion) (n.s.). Thus in anorexia nervosa, weight loss and malnutrition did not induce economy either in energy expended at rest per unit of lean body mass nor in the energy expended in moderate cycling activity.

Authors+Show Affiliations

Unité INSERM U. 286, CHU Bichat, Paris, France.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

2627927

Citation

Melchior, J C., et al. "Energy Expenditure Economy Induced By Decrease in Lean Body Mass in Anorexia Nervosa." European Journal of Clinical Nutrition, vol. 43, no. 11, 1989, pp. 793-9.
Melchior JC, Rigaud D, Rozen R, et al. Energy expenditure economy induced by decrease in lean body mass in anorexia nervosa. Eur J Clin Nutr. 1989;43(11):793-9.
Melchior, J. C., Rigaud, D., Rozen, R., Malon, D., & Apfelbaum, M. (1989). Energy expenditure economy induced by decrease in lean body mass in anorexia nervosa. European Journal of Clinical Nutrition, 43(11), 793-9.
Melchior JC, et al. Energy Expenditure Economy Induced By Decrease in Lean Body Mass in Anorexia Nervosa. Eur J Clin Nutr. 1989;43(11):793-9. PubMed PMID: 2627927.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Energy expenditure economy induced by decrease in lean body mass in anorexia nervosa. AU - Melchior,J C, AU - Rigaud,D, AU - Rozen,R, AU - Malon,D, AU - Apfelbaum,M, PY - 1989/11/1/pubmed PY - 1989/11/1/medline PY - 1989/11/1/entrez SP - 793 EP - 9 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 43 IS - 11 N2 - In anorexia nervosa, the low energy input associated with the classic overactivity during the malnourished state needs a sparing of energy expended at rest and also during physical activity. Therefore, we measured energy expenditure, both at rest and during moderate bicycling exercise (30W, 6 min), in 11 adult anorectic patients (weight 35.15 +/- 4.30 kg, mean +/- s.d.) at the beginning of their treatment and again after a mean weight gain of about 8.4 kg. During the malnourished state, the resting energy expenditure (REE) was lower than that predicted according to Harris and Benedict (P less than 0.001). Although it was significantly increased after weight gain (P less than 0.05), the REE per kg of lean body mass remained unchanged after repletion. The total oxygen consumption related to exercise remained unchanged after refeeding (2114 +/- 487 ml/15 min, basal vs 2168 +/- 394 ml/15 min, repletion) (n.s.). Thus in anorexia nervosa, weight loss and malnutrition did not induce economy either in energy expended at rest per unit of lean body mass nor in the energy expended in moderate cycling activity. SN - 0954-3007 UR - https://www.unboundmedicine.com/medline/citation/2627927/Energy_expenditure_economy_induced_by_decrease_in_lean_body_mass_in_anorexia_nervosa_ DB - PRIME DP - Unbound Medicine ER -