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Titolo:
GENDER-DEPENDENT EFFECTS OF EXERCISE TRAINING ON SERUM LEPTIN LEVELS IN HUMANS
Autore:
HICKEY MS; HOUMARD JA; CONSIDINE RV; TYNDALL GL; MIDGETTE JB; GAVIGAN KE; WEIDNER ML; MCCAMMON MR; ISRAEL RG; CARO JF;
Indirizzi:
E CAROLINA UNIV,HUMAN PERFORMANCE LAB,371 SPORTS MED BLDG GREENVILLE NC 27858 COLORADO STATE UNIV,DEPT EXERCISE & SPORT SCI FT COLLINS CO 80523 THOMAS JEFFERSON UNIV,JEFFERSON MED COLL,DEPT MED,DIV ENDOCRINOL & METAB PHILADELPHIA PA 19107 ELI LILLY & CO INDIANAPOLIS IN 46285
Titolo Testata:
American journal of physiology: endocrinology and metabolism
fascicolo: 4, volume: 35, anno: 1997,
pagine: 562 - 566
SICI:
0193-1849(1997)35:4<562:GEOETO>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
OBESE GENE; INSULIN SENSITIVITY; ADIPOSE-TISSUE; COA SYNTHETASE; PROTEIN; FAT; ADAPTATION; METABOLISM; WOMEN; RATS;
Keywords:
INSULIN; AEROBIC CAPACITY; METABOLISM; ADIPOSE TISSUE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
M.S. Hickey et al., "GENDER-DEPENDENT EFFECTS OF EXERCISE TRAINING ON SERUM LEPTIN LEVELS IN HUMANS", American journal of physiology: endocrinology and metabolism, 35(4), 1997, pp. 562-566

Abstract

Leptin, the product of the ob gene, is elevated in obese humans and appears to be closely related to body fat content. The purpose of the present investigation was to determine the effect of aerobic exercise training on systemic leptin levels in humans. Eighteen sedentary middle-aged men (n = 9) and women (n = 9) who did not differ in aerobic capacity (29.4 +/- 1.2 vs. 27.5 +/- 1.2 ml.kg(-1).min(-1)) or insulin sensitivity index (3.41 +/- 1.12 vs. 4.88 +/- 0.55) were studied. Fat masswas significantly lower in females vs. males (21.83 +/- 2.25 vs. 26.99 +/- 2.37 kg, P < 0.05). Despite this, fasting serum leptin was significantly higher in the females vs. males (18.27 +/- 2.55 vs. 9.88 +/- 1.26 ng/ml, P < 0.05). Serum leptin concentration decreased 17.5% in females (P < 0.05) after 12 wk of aerobic exercise training (4 day/wk, 30-45 min/day) but was not significantly reduced in males. Fat mass was not altered after training in either group. In contrast, both aerobic capacity (+13% males, +9.1% females) and insulin sensitivity (+35% males, +82% females) were significantly improved subsequent to training. These data suggest that 1) women have higher circulating leptin concentrations despite lower fat mass and 2) exercise training appears to have a greater effect on systemic leptin levels in females than in males.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 04:38:44