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Autonomic cardiovascular control recovery in quadriplegics after handcycle training

The aim of this study was to investigate the cardiovascular autonomic acute response, during recovery after handcycle training, in quadriplegics with spinal cord injury (SCI). [Subjects and Methods] Seven quadriplegics (SCIG −level C6–C7, male, age 28.00 ± 6.97 years) and eight healthy subjects (CG...

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Autores principales: Abreu, Elizângela Márcia de Carvalho, Alves, Rani de Souza, Borges, Ana Carolina Lacerda, Lima, Fernanda Pupio Silva, Júnior, Alderico Rodrigues de Paula, Lima, Mário Oliveira
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Society of Physical Therapy Science 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4968507/
https://www.ncbi.nlm.nih.gov/pubmed/27512265
http://dx.doi.org/10.1589/jpts.28.2063
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author Abreu, Elizângela Márcia de Carvalho
Alves, Rani de Souza
Borges, Ana Carolina Lacerda
Lima, Fernanda Pupio Silva
Júnior, Alderico Rodrigues de Paula
Lima, Mário Oliveira
author_facet Abreu, Elizângela Márcia de Carvalho
Alves, Rani de Souza
Borges, Ana Carolina Lacerda
Lima, Fernanda Pupio Silva
Júnior, Alderico Rodrigues de Paula
Lima, Mário Oliveira
author_sort Abreu, Elizângela Márcia de Carvalho
collection PubMed
description The aim of this study was to investigate the cardiovascular autonomic acute response, during recovery after handcycle training, in quadriplegics with spinal cord injury (SCI). [Subjects and Methods] Seven quadriplegics (SCIG −level C6–C7, male, age 28.00 ± 6.97 years) and eight healthy subjects (CG −male, age 25.00 ± 7.38 years) were studied. Their heart rate variability (HRV) was assessed before and after one handcycle training. [Results] After the training, the SCIG showed significantly reduced: intervals between R waves of the electrocardiogram (RR), standard deviation of the NN intervals (SDNN), square root of the mean squares differences of sucessive NN intervals (rMSSD), low frequency power (LF), high frequency power (HF), and Poincaré plot (standard deviation of short-term HRV −SD1 and standard deviation of long-term HRV −SD2). The SDNN, LF, and SD2 remained decreased during the recovery time. The CG showed significantly reduced: RR, rMSSD, number of pairs of adjacent NN intervals differing by more than 50 ms (pNN50), LF, HF, SD1, and sample entropy (SampEn). Among these parameters, only RR remained decreased during recovery time. Comparisons of the means of HRV parameters evaluated between the CG and SCIG showed that the SCIG had significantly lower pNN50, LF, HF, and SampEn before training, while immediately after training, the SCIG had significantly lower SDNN, LF, HF, and SD2. The rMSSD30s of the SCIG significantly reduced in the windows 180 and 330 seconds and between the windows 300 seconds in the CG. [Conclusion] There was a reduction of sympathetic and parasympathetic activity in the recovery period after the training in both groups; however, the CG showed a higher HRV. The parasympathetic activity also gradually increased after training, and in the SCIG, this activity remained reduced even at three minutes after the end of training, which suggests a deficiency in parasympathetic reactivation in quadriplegics after SCI.
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spelling pubmed-49685072016-08-10 Autonomic cardiovascular control recovery in quadriplegics after handcycle training Abreu, Elizângela Márcia de Carvalho Alves, Rani de Souza Borges, Ana Carolina Lacerda Lima, Fernanda Pupio Silva Júnior, Alderico Rodrigues de Paula Lima, Mário Oliveira J Phys Ther Sci Original Article The aim of this study was to investigate the cardiovascular autonomic acute response, during recovery after handcycle training, in quadriplegics with spinal cord injury (SCI). [Subjects and Methods] Seven quadriplegics (SCIG −level C6–C7, male, age 28.00 ± 6.97 years) and eight healthy subjects (CG −male, age 25.00 ± 7.38 years) were studied. Their heart rate variability (HRV) was assessed before and after one handcycle training. [Results] After the training, the SCIG showed significantly reduced: intervals between R waves of the electrocardiogram (RR), standard deviation of the NN intervals (SDNN), square root of the mean squares differences of sucessive NN intervals (rMSSD), low frequency power (LF), high frequency power (HF), and Poincaré plot (standard deviation of short-term HRV −SD1 and standard deviation of long-term HRV −SD2). The SDNN, LF, and SD2 remained decreased during the recovery time. The CG showed significantly reduced: RR, rMSSD, number of pairs of adjacent NN intervals differing by more than 50 ms (pNN50), LF, HF, SD1, and sample entropy (SampEn). Among these parameters, only RR remained decreased during recovery time. Comparisons of the means of HRV parameters evaluated between the CG and SCIG showed that the SCIG had significantly lower pNN50, LF, HF, and SampEn before training, while immediately after training, the SCIG had significantly lower SDNN, LF, HF, and SD2. The rMSSD30s of the SCIG significantly reduced in the windows 180 and 330 seconds and between the windows 300 seconds in the CG. [Conclusion] There was a reduction of sympathetic and parasympathetic activity in the recovery period after the training in both groups; however, the CG showed a higher HRV. The parasympathetic activity also gradually increased after training, and in the SCIG, this activity remained reduced even at three minutes after the end of training, which suggests a deficiency in parasympathetic reactivation in quadriplegics after SCI. The Society of Physical Therapy Science 2016-07-29 2016-07 /pmc/articles/PMC4968507/ /pubmed/27512265 http://dx.doi.org/10.1589/jpts.28.2063 Text en 2016©by the Society of Physical Therapy Science. Published by IPEC Inc. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License.
spellingShingle Original Article
Abreu, Elizângela Márcia de Carvalho
Alves, Rani de Souza
Borges, Ana Carolina Lacerda
Lima, Fernanda Pupio Silva
Júnior, Alderico Rodrigues de Paula
Lima, Mário Oliveira
Autonomic cardiovascular control recovery in quadriplegics after handcycle training
title Autonomic cardiovascular control recovery in quadriplegics after handcycle training
title_full Autonomic cardiovascular control recovery in quadriplegics after handcycle training
title_fullStr Autonomic cardiovascular control recovery in quadriplegics after handcycle training
title_full_unstemmed Autonomic cardiovascular control recovery in quadriplegics after handcycle training
title_short Autonomic cardiovascular control recovery in quadriplegics after handcycle training
title_sort autonomic cardiovascular control recovery in quadriplegics after handcycle training
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4968507/
https://www.ncbi.nlm.nih.gov/pubmed/27512265
http://dx.doi.org/10.1589/jpts.28.2063
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