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Titolo:
TESTOSTERONE AND CORTISOL IN RELATIONSHIP TO DIETARY NUTRIENTS AND RESISTANCE EXERCISE
Autore:
VOLEK JS; KRAEMER WJ; BUSH JA; INCLEDON T; BOETES M;
Indirizzi:
PENN STATE UNIV,CTR SPORTS MED,146 REC BLDG UNIVERSITY PK PA 16802 PENN STATE UNIV,CTR SPORTS MED UNIVERSITY PK PA 16802 PENN STATE UNIV,DEPT KINESIOL UNIVERSITY PK PA 16802 PENN STATE UNIV,NOLL PHYSIOL RES CTR UNIVERSITY PK PA 16802 PENN STATE UNIV,CTR CELL RES UNIVERSITY PK PA 16802
Titolo Testata:
Journal of applied physiology
fascicolo: 1, volume: 82, anno: 1997,
pagine: 49 - 54
SICI:
8750-7587(1997)82:1<49:TACIRT>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
HORMONE-BINDING GLOBULIN; GROWTH-FACTOR RESPONSES; SERUM SEX-HORMONES; PLASMA-LEVELS; MEN; VEGETARIAN; WOMEN; PROTOCOLS; FAT; PERFORMANCE;
Keywords:
NUTRITION; CARBOHYDRATE; FAT; PROTEIN; STEROID HORMONES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
J.S. Volek et al., "TESTOSTERONE AND CORTISOL IN RELATIONSHIP TO DIETARY NUTRIENTS AND RESISTANCE EXERCISE", Journal of applied physiology, 82(1), 1997, pp. 49-54

Abstract

Manipulation of resistance exercise variables (i.e., intensity, volume, and rest periods) affects the endocrine response to exercise; however, the influence of dietary nutrients on basal and exercise-induced concentrations of hormones is less understood. The present study examined the relationship between dietary nutrients and resting and exercise-induced blood concentrations of testosterone (T) and cortisol (C). Twelve men performed a bench press exercise protocol (5 sets to failure using a 10-repetitions maximum load) and a jump squat protocol (5 setsof 10 repetitions using 30% of each subject's 1-repetition maximum squat) with 2 min of rest between all sets. A blood sample was obtained at preexercise and 5 min postexercise for determination of serum T andC. Subjects also completed detailed dietary food records for a total of 17 days. There was a significant (P less than or equal to 0.05) increase in postexercise T compared with preexercise values for both the bench press (7.4%) and jump squat (15.1%) protocols; however, C was not significantly different from preexercise concentrations. Significantcorrelations were observed between preexercise T and percent energy protein (r = -0.71), percent energy fat (r = 0.72), saturated fatty acids (g . 1,000 kcal(-1) . day(-1); r = 0.77), monounsaturated fatty acids (g . 1,000 kcal(-1) . day(-1); r = 0.79), the polyunsaturated fat-to-saturated fat ratio (r = -0.63), and the protein-to-carbohydrate ratio (r = -0.59). There were no significant correlations observed between any nutritional variables and preexercise C or the absolute increasein T and C after exercise. These data confirm that high-intensity resistance exercise results in elevated postexercise T concentrations. A more impressive finding was that dietary nutrients may be capable of modulating resting concentrations of T.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 08:56:44