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Titolo:
Effect of short-term exercise training on leptin and insulin action
Autore:
Houmard, JA; Cox, JH; MacLean, PS; Barakat, HA;
Indirizzi:
E Carolina Univ, Human Performance Lab, Dept Exercise & Sport Sci, Greenville, NC 27858 USA E Carolina Univ Greenville NC USA 27858 ort Sci, Greenville, NC 27858 USA E Carolina Univ, Sch Med, Dept Biochem, Greenville, NC 27858 USA E Carolina Univ Greenville NC USA 27858 Biochem, Greenville, NC 27858 USA
Titolo Testata:
METABOLISM-CLINICAL AND EXPERIMENTAL
fascicolo: 7, volume: 49, anno: 2000,
pagine: 858 - 861
SICI:
0026-0495(200007)49:7<858:EOSETO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
OB GENE-EXPRESSION; FAT-CONTENT; HUMANS; MEN; SENSITIVITY; RESPONSES; INTENSITY; OBESITY; GLUCOSE; WEIGHT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Houmard, JA E Carolina Univ, Human Performance Lab, Dept Exercise & Sport Sci, Ward Sports Med Bldg, Greenville, NC 27858 USA E Carolina Univ Ward Sports Med Bldg Greenville NC USA 27858 A
Citazione:
J.A. Houmard et al., "Effect of short-term exercise training on leptin and insulin action", METABOLISM, 49(7), 2000, pp. 858-861

Abstract

The purpose of the study was to determine the effect of short-term exercise training (7 consecutive days for 60 min/d at 75% maximal oxygen consumption [(V) over dot o(2) max]), which did not change body mass on fasting plasma leptin concentration and insulin action. Young, lean subjects (n = 16; age, 21.9 +/- 0.6 years; body fat, 17.5% +/- 1.5%) and older subjects with relatively more adipose tissue (n = 14; age, 58.6 +/- 1.4 years; body fat, 28.3% +/- 1.3%) were studied (mean +/- SE). Fasting plasma leptin was significantly (P < .05) related to adiposity (fat mass, r = .58; % body fat, r = .76) in this population. Body mass did not change (P < .05) in any of the groups with training (71.8 +/- 2.5 v 71.9 +/- 2.5 kg). The insulin sensitivity index (S-1 determined from an intravenous glucose tolerance test (IVGTT)improved significantly (P < .05) in both the young group (4.8 +/- 0.6 v 6.9 +/- 0.8 x 10(-4)/ min (mu U/mL) and the older group (3.2 +/- 0.6 v 5.9 +/- 1.0 x 10(-4)/min (mu U/mL)). Fasting leptin did not change with training in either group (10.4 +/- 1.6 v 9.2 +/- 1.0 ng/mL). These findings suggest that exercise does not independently affect the fasting plasma leptin concentration and the improvement in insulin action with exercise is not associated with an alteration in fasting leptin in healthy sedentary lean and relatively lean subjects. Copyright in 2000 by W.B. Saunders Company.

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Documento generato il 03/12/20 alle ore 05:51:26