Conceptos Categóricos

TREINAMENTO <I>(ENTRENAMIENTO)</I> MUSCULAR INSPIRATORIO SOBRE O <I>(EL)</I> CONTROLE AUTONOMICO DE INDIVIDUOS SAUDAVEIS <I>(SANOS)</I>

TREINAMENTO (ENTRENAMIENTO) MUSCULAR INSPIRATORIO SOBRE O (EL) CONTROLE AUTONOMICO DE INDIVIDUOS SAUDAVEIS (SANOS)

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Ensaio (Ensayo) clínico randomizado cruzado. A variabilidade da ( (La variación en la) frequência cardíaca foi analisada antes e após o treinamento (antes del entrenamiento y después de éste) muscular inspiratório aos (a los) 10 minutos, 60 minutos e 24 horas.
dellameaplentz9_n2114.jpg Autor:
Rodrigo Della Méa Plentz
Columnista Experto de SIIC

Institución:
Universidade Federal de Ciências da Saúde de Porto Alegre


Artículos publicados por Rodrigo Della Méa Plentz
Coautores
Vanessa Giendruczak da Silva* Thiago Dipp* Fabricio Edler Macagnan** Luisa Ciaoato Lemos*** Janice Luisa Lukrafka Tartari**** Graciele Sbruzzi***** 
Fisioterapeuta, Mestre em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil*
Fisioterapeuta, Professor Doutor em Ciências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil**
Bolsista de Iniciação Científica, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil***
Professora Doutora em Ciências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil****
Professora Doutora, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brasil*****
Recepción del artículo
26 de Septiembre, 2014
Aprobación
21 de Octubre, 2014
Primera edición
26 de Noviembre, 2014
Segunda edición, ampliada y corregida
11 de Agosto, 2015

Resumen
Objetivo: Verificar o efeito (el efecto) agudo de diferentes sobrecargas de treinamento (entrenamiento) muscular inspiratório (TMI) sobre a (la) modulação autonômica cardiovascular em indivíduos saudáveis. Métodos: Ensaio (Ensayo) clínico randomizado cruzado. Foram (Fueron) incluídos voluntários saudáveis (sanos) entre 18 e 35 anos. A variabilidade da (de la) frequência cardíaca (VFC) foi analisada antes e após o (y después del) TMI aos (a los) 10 minutos, 60 minutos e 24 horas (agudo, subagudo e tardio, respectivamente). A força (La fuerza) muscular inspiratória foi avaliada (fue evaluada) através da (de la) medida de pressão inspiratória máxima (PImáx) com a utilização do (del) manovacuômetro digital MVD 300 (Microhard System®, Globalmed, Porto Alegre, Brasil). O TMI foi realizado à 30% e 60% da pressão inspiratória máxima (PImáx) ajustados no (en el) dispositivo pressórico linear Powerbreathe®. Resultados: Foram avaliados dezenove (diecinueve) indivíduos (47% homens, 25 ± 5 anos). Na (En la) fase aguda apenas com 60% da PImáx houve redução (hubo una reducción) significativa da variabilidade dos (de los) intervalos RR e no (y en el) componente de alta frequência (HFnu), enquanto que o (mientras que el) componente de baixa (baja) frequência (LFnu) e o balanço (y el equilibrio) autonômico (LF/HF) aumentaram significativamente. Na (En la) fase subaguda, o mesmo comportamento foi observado para HFnu, LFnu, LF/HF. Quando comparadas as (Cuando fueron comparadas las) sobrecargas, houve (hubo) aumento significativo na (en la) magnitude do efeito a 60% PImáx para NN50, LF/HF, LFnu, HFnu na fase aguda, bem como, para (así como para) RR, NN50, LFnu e HFnu na fase subaguda (p < 0.05). Conclusão: Agudamente, o efeito do TMI à 60% da PImáx foi maior deslocando a (fue más grande, desplazando la) modulação autonômica do sistema cardiovascular em indivíduos saudáveis para um predomínio simpático.

Palabras clave
exercício respiratório, ejercicio respiratorio, treinamento, entrenamiento, sobrecarga, sobrecarga, sistema nervoso autónomo, sistema nervioso autónomo


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Abstract
Objective: To evaluate the acute effects of different inspiratory muscle training (IMT) overloads on cardiovascular autonomic modulation. Methods: A randomized crossover trial with 19 young and healthy subjects aged between 18 and 35 years old (47% men, 25 ± 5 years). Heart beat was recorded before and after 10 minutes (acute), 60 minutes (sub-acute), and 24 hours (chronic) of IMT at 30% and 60% of maximal inspiratory pressure (MIP). A Polar® RS800CX cardiomonitor and Kubios software were used to analyze heart rate variability (HRV). A linear inspiratory resistor device (Powerbreathe®) was used for IMT. Results: The HRV was significantly changed by IMT in acute and sub-acute times, but only after 60% of MIP. The HRV on time domain (R-R interval) was significantly reduced, on frequency domain the HF(nu) was reduced whereas both LF(nu) and autonomic balance (LF/HF) increased. In the sub-acute phase, the same behaviour was verified on HF(nu), LF(nu) and autonomic balance (LF/HF). When the two loads were compared, the magnitude of the effect was higher in acute phase at 60% MIP on NN50, LF/HF, LF(nu) as well for RR intervals, NN50, LF(nu) e HF(nu) at sub-acute phase (p < 0.05). Conclusions: The IMT overload reduced the parasympathetic and increased the sympathetic modulation of the HRV in acute and sub-acute periods only at 60% of MIP in the healthy subjects.

Key words
respiratory exercise, training, overload, autonomic nervous system


Clasificación en siicsalud
Artículos originales > Expertos de Iberoamérica >
página   www.siicsalud.com/des/expertocompleto.php/

Especialidades
Principal: Kinesiología, Medicina Deportiva
Relacionadas: Cardiología, Fisiatría, Neumonología



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Rodrigo Della Méa Plentz, 90050170, Rua sarmento 246, Porto Alegre, Brasil
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