Introduction: Complex Training (CT) has been used to achieve Post-activation Potentiation (PAP) of physical capabilities and, in doing so, improve the sports performance of athletes. However, few studies have considered alterations in serum Cortisol, Metabolic Creatine Kinase (MB-CK), Total Creatine Kinase (Total-CK), and Lactate concentrations ([La]) resulting from this training method. Objective: This study determined the behavior of the following blood serum substances in a CT session: Cortisol, MB-CK, Total CK and [La]. Method: Ten military athlete volunteers aged 28.5 ± 4.8 years; 66.2 ± 2.8 kg, 171.4 ± 3.7 cm, 22.6 ± 1.2 kg/m2; 11.3 ± 2.9% of fat tissue took part in the study. The study had a quasi-experimental, intrasubject design. The variable measurements were: Cortisol, MB-CK, Total-CK, and [La], measured before physical exercise and 24 hours post-stress. The CT session consisted of: four series of five repetitions at 30% of 1RM, plus four repetitions at 60% of 1RM, plus three throws of a 575 g projectile, 15 seconds apart. The statistical analysis was carried out through repeated measure ANOVA for Lactate and a Wilcoxon Matched Pairs t-Test for Cortisol, MB-CK and Total-CK. Results: There was no evidence of alterations in the indicators for fatigue ([La] p = 0.36), and muscular injury (Cortisol p = 0.16; MB-CK p = 0.23; Total-CK p = 0.64) after the training sessions. Conclusion: Variables for muscular injury showed no evidence of alterations 24 hours after the CT sessions, hence confirming that the workload did not generate significant post-stress muscular injury. Level of Evidence I; Therapeutic Study: Investigating Treatment Results.

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Behavior of cortisol, ck and lactate in a session of variable resistance

Introduction Resistance exercises (RE) performed at high intensity cause an inflammatory response and electrolyte abnormalities in blood plasma. Objectives To study the plasma electrolyte changes resulting from a high-intensity session of RE in untrained volunteers, and to correlate these with delayed onset muscle soreness (DOMS). Methods Twenty volunteers, aged 26.9 (±4.4) years, underwent an RE session. The workout (leg extension, squat and leg press) consisted of four sets of 10 maximum repetitions. Electrolytes (Na+, K+, Ca2+ e Mg2+) were evaluated before the training (baseline), immediately (0 min), and 30 minutes after the RE. The DOMS was assessed 24 hours after the sessions. Results The Na+ increased immediately after the RE and returned to normal after 30 min (p<0.001). After 30 min, K+ increased compared to baseline levels and immediately after the RE (p<0.001). Ca2+ and Mg2+ levels did not change throughout the study. Changes in Na+ and K+ levels were correlated immediately (r=-0.511; p=0.021) and 30 min (r=-0.455; p=0.049) after RE. Plasma concentrations of Na+ 0 min were correlated (r=-0.520; p=0.018) with the DOMS. Conclusion High-intensity RE in untrained volunteers leads to changes in plasma concentrations of Na+ and K+. Na+ concentrations immediately after RE were related to DOMS; individuals that presented smaller alterations in this electrolyte reported more muscular pain. Level of evidence II; Diagnostic Studies - Development of diagnostic criteria on consecutive patients (with universally applied reference “gold” standard).

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Alterações eletrolíticas relacionadas à dor muscular após exercícios resistidos

INTRODUCAO: Muitos trabalhos tem estudado o comportamento hormonal nos exercicio resistido, entretanto poucos relacionam os hormonios cortisol, GH e insulina. OBJETIVO: Estudar os ajustes das concentracoes plasmaticas dos hormonios cortisol, GH e insulina em exercicios resistidos de mesma intensidade com relacao a massas musculares distintas. METODOS: Dez voluntarios, com 20,3 ± 4,2 anos, 74,1 ± 10,2 kg de peso, 177,2 ± 4,6 cm de estatura e 23,8 ± 3,2 kg/m2 de IMC, realizaram uma sessao de leg press (LP) e supino reto (SR) com quatro series com 10 repeticoes a 70% 1 RM com tres minutos de intervalo. Foram coletadas amostras de sangue para dosagem das concentracoes plasmaticas de cortisol, GH e insulina em repouso (Pre) e em 0' (Rec. 0'), 30' (Rec. 30') e 90' (Rec. 90') de recuperacao. RESULTADOS: As concentracoes plasmaticas de cortisol foram significativamente reduzidas ao final da recuperacao em LP (2,20±0,37 ng/dl para 1,33±0,38ng/dl) em relacao a pre-dosagem. As concentracoes de GH e insulina elevaram-se significativamente durante a recuperacao. GH em LP foi significativamente maior em Rec. 0' (2,75±3,29 ng/ml para 9,60±5,32 ng/dl) do que em pre. A insulina elevou-se significativamente em Rec. 30' em LP (14,70±7,92 ulU/ml para 21,66 ± 8,61 ulU/ml) e em SR (6,17 ± 2,99 ulU/ml para 19,70 ± 13,8 ulU/ml) em relacao a pre. As concentracoes plasmaticas de insulina pre em LP foram significativamente superiores a SR (14,70 ulU/ml e 6,17 ± 2,99 ulU/ml). CONCLUSAO: O exercicio resistido promoveu diferentes ajustes nas concentracoes hormonais de cortisol, GH e insulina durante o periodo de recuperacao.

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Estudo do comportamento cortisol, gh e insulina apos uma sessao de exercicio resistido agudo

O teste Yo-yo Intermitent Recovery test level 1 e um teste bastante utilizado para avaliar capacidade de executar repetidamente exercicio intenso intermitentemente, porem nao se conhece o efeito deste sobre parâmetros cardiovasculares. O objetivo do estudo foi analisar o comportamento dos parâmetros cardiovasculares: FC, %FCmax., %FCreserva, PAS e PAD em jogadores amadores de futebol de campo durante este teste. 8 adolescentes do sexo masculino, 14,8±0,5anos, 59,6±7,5Kg, IMC 20,9±1,9Kg/m 2 , FCmax. 197,0±0,3bpm, FCreserva 128,8±4,6bpm matriculados na escola de futebol de campo da cidade de Juruaia-MG. Realizaram o teste Yo-yo Intermitent Recovery test level 1. Os resultados demonstraram uma elevacao continua e linear da FC, %FCmax. e %FCreserva de acordo com os estagios. A PAS e PAD apresentaram reducao nos valores entre pre e pos-esforco, porem os valores de duplo produto elevaram. Desta maneira podemos concluir que o teste Yo-yo Intermintent Recovery test level 1 e um esforco fisico intenso que promove ajustes fisiologicos que acarretam uma intensa e linear elevacao do comportamento da FCmaxima que foi obesrvada tambem em relacao ao seus %FCmax. e da %FCreserva. Podemos tambem classificar, de acordo com o American College of Sports Medicine , como um teste de moderada a vigoroso e muito pesado. O que pode ser tambem observado pelo comportamento do duplo produto. Alem disto, devido a esta intensidade, promover uma discreta reducao no comportamento das pressoes arteriais durante a recuperacao. ABSTRACT The cardiovascular parameters of behavior during the yo-yo intermittent recovery test level 1 The Yo-yo intermitent Recovery test level 1 test is a test widely used to assess ability to repeatedly perform intense intermittent exercise, but do not know the effect of this on cardiovascular parameters. The aim of the study was to analyze the behavior of cardiovascular parameters. FC,% HRmax,% HRreserve, SBP and DBP in amateur soccer players in the field during this test. 8 male adolescents, 14.8 ± 0,5anos, 59.6 ± 7,5Kg, BMI 20.9 ± 1.9 kg / m 2, HRmax. 197.0 ± 0,3bpm, CFreserve 128.8 ± 4,6bpm enrolled in the school football field in the city of Juruaia-MG. Performed the test Yo-yo intermitent Recovery test level 1 Results demonstrated a continuous and linear increase in HR,% MHR. % and HRreserve according stages. The SBP and DBP decreased in values between pre-and post effort, but the values of double product increased. Thus we conclude that the Yo-yo Intermintent Recovery test level 1 test is an intense physical effort that promotes physiological adjustments that cause an intense and linear behavior of the elevation FCmaxima which was also in relation to their obesrvada% MHR. and HRreserve%. Can also classify, according to the American College of Sports Medicine as a vigorous and too heavy to moderate test. What can also be observed by the behavior of the double product. Moreover, due to this intensity, promote a slight reduction in the behavior of arterial pressure during recovery.

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Autran Jose Silva

Papers

Estudo do comportamento cortisol, gh e insulina apos uma sessao de exercicio resistido agudo

O comportamento de parâmetros cardiovasculares durante o Yo-yo Intermitent Recovery test level 1