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Titolo:
ACUTE HORMONAL RESPONSES TO HEAVY RESISTANCE EXERCISE IN YOUNGER AND OLDER MEN
Autore:
KRAEMER WJ; HAKKINEN K; NEWTON RU; MCCORMICK M; NINDL BC; VOLEK JS; GOTSHALK LA; FLECK SJ; CAMPBELL WW; GORDON SE; FARRELL PA; EVANS WJ;
Indirizzi:
PENN STATE UNIV,NOLL PHYSIOL RES CTR,21 REC BLDG UNIVERSITY PK PA 16802 PENN STATE UNIV,LAB SPORTS MED UNIVERSITY PK PA 16802 UNIV JYVASKYLA,DEPT BIOL PHYS ACTIV SF-40100 JYVASKYLA FINLAND SO CROSS UNIV,DEPT EXERCISE SCI & SPORT MANAGEMENT LISMORE NSW AUSTRALIA
Titolo Testata:
European journal of applied physiology and occupational physiology
fascicolo: 3, volume: 77, anno: 1998,
pagine: 206 - 211
SICI:
0301-5548(1998)77:3<206:AHRTHR>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTENSITY CYCLE EXERCISE; GROWTH-FACTOR RESPONSES; PHYSICAL EXERCISE; BINDING GLOBULIN; ELDERLY SUBJECTS; TESTOSTERONE; CORTISOL; PLASMA; SECRETION; PROTOCOLS;
Keywords:
AGING; NEUROENDOCRINE; RESISTANCE EXERCISE; GROWTH FACTORS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
W.J. Kraemer et al., "ACUTE HORMONAL RESPONSES TO HEAVY RESISTANCE EXERCISE IN YOUNGER AND OLDER MEN", European journal of applied physiology and occupational physiology, 77(3), 1998, pp. 206-211

Abstract

The purpose of this investigation was to examine the acute responses of several hormones [total and free testosterone (TT and FT, respectively), adrenocorticotropic hormone (ACTH), cortisol (C), growth hormone(GH), and insulin (INS)] to a single bout of heavy resistance exercise (HRE). Eight younger [30-year (30y) group] and nine older [62-year (62y) group] men matched for general physical characteristics and activity levels performed four sets of ten repetitions maximum (RM) squats with 90 s rest between sets. Blood samples were obtained from each subject via an indwelling cannula with a saline lock pre-exercise, immediately postexercise (IF), and 5, 15 and 30 min post-exercise. Levels ofTT, FT, ACTH, C and lactate significantly increased after HRE for both groups. Pre-HRE pairwise differences between groups were noted only for FT, while post-HRE pairwise differences were found for TT, FT, GH,glucose and lactate. Area under the curve analysis showed that the 30y group had a significantly higher magnitude of increase over the entire recovery period (IF, 5, 15, and 30 min post-exercise) for TT, FT, ACTH and GH. Few changes occurred in the INS response with the only change being that the 62y group demonstrated a decrease IF. Lactate remained elevated at 30 min post-HRE. This investigation demonstrates that age-related differences occur in the endocrine response to HRE, and the most striking changes appear evident in the FT response to HRE in physically active young and older men.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 09:09:32