A influência do controle subjetivo de intensidade sobre fadiga percebida e lactato capilar em duas formas de treinamento resistido

Abstract

-Rating of perceived exertion (RPE) is a method used to control intensity in resistance training (RT). However, few studies have compared acute physiological and perceptual responses between different types of RT. The objective of this study was to compare the acute responses of lactate and perceived fatigue (PF) between manual resistance training (MRT) and free weight RT (FWRT) with intensity control by RPE, and to evaluate the correlation between lactate and PF in both interventions. Fourteen previously untrained men (40.29 ± 8.63 years, BMI = 26.53 ± 5.24 kg/m²) underwent single sessions of MRT and FWRT with intensity control by RPE (5-7 OMNI-RES). Lactate and PF were analyzed pre and post-test. Repeated measures ANOVA and the post hoc Bonferroni test were used for data analysis, adopting a significance level of 5% (P ≤ 0.05). The effect size was calculated to determine the magnitude of the response and Pearson's correlation coefficient was used to assess the association between lactate and PF. Both interventions increased post-test lactate compared to pre-test levels. However, the increase was greater for MRT. Post-test PF was increased when compared to pre-test levels in both protocols, with no difference between interventions. However, a greater effect size was observed for MRT. The correlation between PF and lactate was moderate in three of the four assessments. In conclusion, the same intensity zone in RPE may elicit different physiological responses in the two types of RT. Thus, the use of RPE for intensity control under these conditions should be viewed with caution. Key words: Muscle stretching exercise; Physical education and training; Physical exertion. (40,29+8,63 anos, IMC = 26,53+5,24 Kg/m²) Resumo -A percepção subjetiva de esforço (PSE) é um método utilizado para controlar a intensidade no treinamento resistido (TR). Porém há escassez de estudos que comparam respostas fisiológicas e perceptivas agudas entre formas distintas de TR. O estudo teve como objetivo comparar as respostas agudas de lactato (LAC) e fadiga percebida (FAD) entre treinamento resistido manual (TRM) e TR com pesos livres (TRPL) com intensidades controladas por PSE, bem como observar a correlação entre LAC e FAD nas duas intervenções. Participaram 14 homens 310Resistance training with subjective intensity control Teixeira et al.

Alternativas para a prática de exercícios físicos durante a pandemia da COVID-19 e distanciamento social

“…Para este método de treinamento é necessária uma pessoa para exercer resistência manual contra a outra pessoa, ou seja, utilizar a própria resistência humana para gerar carga ou a força pode ser gerada pela mesma pessoas utilizando um dos membros, por exemplo, o braço esquerdo tenta fazer o movimento enquanto que o braço direito se opõe e resiste ao movimento (CHULVI-MEDRANO et al, 2017). Neste método a resistência é sempre aplicada na direção oposta ao movimento, mantendo a tensão muscular constante, independentemente da força gravitacional (TEIXEIRA; FERREIRA; GOMES et al, 2015).…”