Hormone and Metabolite Response to Weight-Lifting Training Sessions

Guezennec, Y.; Léger, L; Lhoste, F; Aymonod, M.; Pesquiès, P

doi:10.1055/s-2008-1025742

Cited by 99 publications

(58 citation statements)

References 22 publications

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“…The previous reports of cortisol responses to resistance exercise vary considerably between studies, depending to some extent on subject characteristics and exercise parameters. Cortisol has been reported either to increase (Kraemer et al 1987;Ha¨kkinen and Pakarinen 1993;Kraemer et al 1993Kraemer et al , 1998a or show little change (Guezennec et al 1986;Kraemer et al 1993;Volek et al 1997;Kraemer et al 1999) in response to resistance exercise. Nevertheless, a high volume of resistance exercise has tended to show a greater cortisol response than a low volume (Kraemer et al 1993;Gotshalk et al 1997).…”

Section: Discussionmentioning

confidence: 99%

Effects of resistance exercise volume and nutritional supplementation on anabolic and catabolic hormones

et al. 2002

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Seven resistance-trained men performed six bouts of resistance exercise, each separated by at least 1 week, in a crossover design. High, moderate and low volumes of exercise were used, each performed twice and followed immediately post-exercise by either a placebo or carbohydrate-protein supplementation. All bouts of resistance exercise were performed using a load equal to 100% of each subject's ten-repetition maximum (10-RM), and all rest periods between sets of exercise were 1 min. Blood was obtained before and at intervals after exercise until 120 min post-exercise. Lactate levels were significantly (P < 0.05) elevated immediately post-exercise, and to a significantly greater extent after the greatest volume of exercise. Levels of growth hormone rose significantly after the greatest volume of exercise only. Those of insulin and glucose rose significantly after supplementation only. Cortisol levels tended to be higher after the greatest volume of exercise, but the differences were not significant. Supplementation had no effect on the lactate, growth hormone or cortisol responses to resistance exercise. The data indicate that volume of exercise and protein-carbohydrate supplementation can alter the metabolic and hormonal responses to resistance exercise independently. However, cortisol levels remain high after a high volume of resistance exercise, irrespective of whether a post-exercise carbohydrate-protein supplement is used.

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Section: Discussionmentioning

confidence: 99%

Effects of resistance exercise volume and nutritional supplementation on anabolic and catabolic hormones

et al. 2002

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“…In this study, this fall is more precocious (a rugby match lasts 1.5 h) as we reported in a previous study on runners (Lac and Berthon 2000). At the cellular level, testosterone is known to exert a protective effect against proteolytic pathways (opposed to cortisol's effects) and a sparing effect on glycogen stores (Guezennec et al 1986). The fall of testosterone limits these protective effects and allows the energy supply to be enhanced from these cellular substrates.…”

Section: Testosteronementioning

confidence: 99%

Behaviour of saliva cortisol [C], testosterone [T] and the T/C ratio during a rugby match and during the post-competition recovery days

Elloumi¹,

Maso²,

Michaux³

et al. 2003

Eur J Appl Physiol

116

103

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Competition is a more demanding situation than other strenuous exercise of equivalent duration; it results in stronger physiological changes. The object of this study was to get information on the duration of the recovery period by measuring changes of saliva cortisol [C], testosterone [T] and their ratio T/C in a group of international rugby players ( n=20) during the week following a rugby match (6 days). Using non-invasive saliva assays, we were able to take samples during the day of competition and the post-competitive days. Hormone levels were assayed with a routine in-house radioimmunoassay (RIA) method. Throughout the competition, C levels increased sharply (about 2.5-fold compared resting values) and returned to basal values within 4 h. Conversely, the T level decreased slightly. During the recovery period, C levels were lower and T levels were higher than basal values, resulting in a very high T/C ratio until the 5th day. This high post-competitive T/C ratio phase is probably required to restore the break-down of homeostasis induced by the very hard mental and physical strain associated with a rugby match. Thus, a period of 1 week recovery appears to be the minimal duration between two competitions.

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“…É possível que esses fatores apresentem algum papel na resposta da testosterona observada no presente estudo. Em adendo, o fato de a atividade nervosa simpática ser maior quanto maior for a intensidade dos exercícios resistidos (26) pode explicar a maior ASCR observada no G80 quando comparada com o GC.…”

Section: Discussionunclassified

Respostas hormonais agudas a diferentes intensidades de exercícios resistidos em mulheres idosas

Oliveira

Lima

Gentil

et al. 2008

Rev Bras Med Esporte

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Artigo originAl RESUMOO treinamento resistido vem sendo apontado como eficaz em retardar o declínio de força e massa muscular que acompanham o envelhecimento; contudo, a resposta hormonal aguda a esse tipo de exercício precisa ser mais bem caracterizada. Os objetivos do presente estudo foram caracterizar e comparar as respostas hormonais agudas resultantes de diferentes intensidades de exercícios resistidos realizados por mulheres idosas. A amostra foi composta por 15 mulheres com idade média de 67,5 anos, as quais realizaram, de forma aleatória, três visitas ao laboratório: 1) exercícios resistidos realizados a 50% de 1-RM (G50); 2) exercícios resistidos realizados a 80% de 1-RM (G80); e 3) sessão controle (GC). Coletas sanguíneas foram realizadas imediatamente antes e após (TO e T1, respectivamente) cada sessão, bem como três e 48 horas após (T2 e T3, respectivamente), para posterior análise hormonal através do método imunoensaio quimiluminescente. ANOVA e ANCOVA foram utilizadas, respectivamente, para examinar diferenças intra e intersessões. Não foram observadas diferenças significativas entre as sessões para nenhum dos hormônios avaliados. Em T2, as concentrações do cortisol encontraram-se significativamente inferiores quando comparados com T0 nas três sessões realizadas, enquanto a testosterona apresentou-se reduzida no T2 do GC. Apenas a sessão G80 induziu elevação transitória significativa da razão testosterona/cortisol e nenhuma das sessões provocou alterações nas concentrações séricas de GH. Conclui-se que exercícios resistidos realizados a 50% ou a 80% de 1-RM não induziram agudamente elevação significativa de cortisol, testosterona ou GH na amostra estudada. Por outro lado, a sessão realizada a 80% de 1-RM promoveu aumento significativo da razão testosterona/cortisol três horas pós-exercício quando comparada com a dos valores basais, em mulheres idosas.Palavras-chave: treinamento resistido, respostas agudas, idosas, hormônios. ABSTRACTResistance training has been pointed as an effective intervention to minimize muscle mass and strength decline observed with advancing age, however, its acute hormonal responses need to be better characterized. The purposes of the present study were characterize and compare the acute hormonal responses to different resistance exercises intensities performed by older women. Sample was composed by 15 women with a mean age of 67,5 years, who performed, in a randomized order, three visits at the laboratory: 1) resistance exercises performed at 50% of 1-RM (G50); 2) resistance exercises performed at 80% of 1-RM (G80) and 3) control session (GC). Blood samples were taken immediately before and after (T0 and T1, respectively) each session, as well as three and 48 hour after (T2 and T3, respectively), for subsequent hormonal analyses by the enzyme immunoassay chemiluminescent method. ANOVA and ANCOVA were used, respectively, to examine intra and inter sessions differences. No significant differences were observed between sessions for any of the evaluated hormone. In T2, cortiso...

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Hormone and Metabolite Response to Weight-Lifting Training Sessions

Cited by 99 publications

References 22 publications

Effects of resistance exercise volume and nutritional supplementation on anabolic and catabolic hormones

Effects of resistance exercise volume and nutritional supplementation on anabolic and catabolic hormones

Behaviour of saliva cortisol [C], testosterone [T] and the T/C ratio during a rugby match and during the post-competition recovery days

Respostas hormonais agudas a diferentes intensidades de exercícios resistidos em mulheres idosas

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