Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate
Main Author: | |
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Publication Date: | 2016 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Brazilian Journal of Physical Therapy |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552016000100096 |
Summary: | OBJECTIVE: To assess the influence of diaphragmatic activation control (diaphC) on Sniff Nasal-Inspiratory Pressure (SNIP) and Maximum Relaxation Rate of inspiratory muscles (MRR) in healthy subjects. METHOD: Twenty subjects (9 male; age: 23 (SD=2.9) years; BMI: 23.8 (SD=3) kg/m2; FEV1/FVC: 0.9 (SD=0.1)] performed 5 sniff maneuvers in two different moments: with or without instruction on diaphC. Before the first maneuver, a brief explanation was given to the subjects on how to perform the sniff test. For sniff test with diaphC, subjects were instructed to perform intense diaphragm activation. The best SNIP and MRR values were used for analysis. MRR was calculated as the ratio of first derivative of pressure over time (dP/dtmax) and were normalized by dividing it by peak pressure (SNIP) from the same maneuver. RESULTS: SNIP values were significantly different in maneuvers with and without diaphC [without diaphC: -100 (SD=27.1) cmH2O/ with diaphC: -72.8 (SD=22.3) cmH2O; p<0.0001], normalized MRR values were not statistically different [without diaphC: -9.7 (SD=2.6); with diaphC: -8.9 (SD=1.5); p=0.19]. Without diaphC, 40% of the sample did not reach the appropriate sniff criteria found in the literature. CONCLUSION: Diaphragmatic control performed during SNIP test influences obtained inspiratory pressure, being lower when diaphC is performed. However, there was no influence on normalized MRR. |
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Brazilian Journal of Physical Therapy |
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Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation raterespiratory musclesnasal inspiratory pressurephysical therapy OBJECTIVE: To assess the influence of diaphragmatic activation control (diaphC) on Sniff Nasal-Inspiratory Pressure (SNIP) and Maximum Relaxation Rate of inspiratory muscles (MRR) in healthy subjects. METHOD: Twenty subjects (9 male; age: 23 (SD=2.9) years; BMI: 23.8 (SD=3) kg/m2; FEV1/FVC: 0.9 (SD=0.1)] performed 5 sniff maneuvers in two different moments: with or without instruction on diaphC. Before the first maneuver, a brief explanation was given to the subjects on how to perform the sniff test. For sniff test with diaphC, subjects were instructed to perform intense diaphragm activation. The best SNIP and MRR values were used for analysis. MRR was calculated as the ratio of first derivative of pressure over time (dP/dtmax) and were normalized by dividing it by peak pressure (SNIP) from the same maneuver. RESULTS: SNIP values were significantly different in maneuvers with and without diaphC [without diaphC: -100 (SD=27.1) cmH2O/ with diaphC: -72.8 (SD=22.3) cmH2O; p<0.0001], normalized MRR values were not statistically different [without diaphC: -9.7 (SD=2.6); with diaphC: -8.9 (SD=1.5); p=0.19]. Without diaphC, 40% of the sample did not reach the appropriate sniff criteria found in the literature. CONCLUSION: Diaphragmatic control performed during SNIP test influences obtained inspiratory pressure, being lower when diaphC is performed. However, there was no influence on normalized MRR.Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia 2016-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552016000100096Brazilian Journal of Physical Therapy v.20 n.1 2016reponame:Brazilian Journal of Physical Therapyinstname:Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)instacron:ABRAPG-FT10.1590/bjpt-rbf.2014.0101info:eu-repo/semantics/openAccessBenício,KadjaDias,Fernando A. L.Gualdi,Lucien P.Aliverti,AndreaResqueti,Vanessa R.Fregonezi,Guilherme A. F.eng2016-05-31T00:00:00Zoai:scielo:S1413-35552016000100096Revistahttps://www.scielo.br/j/rbfis/https://old.scielo.br/oai/scielo-oai.phpcontato@rbf-bjpt.org.br||contato@rbf-bjpt.org.br1809-92461413-3555opendoar:2016-05-31T00:00Brazilian Journal of Physical Therapy - Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)false |
dc.title.none.fl_str_mv |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
title |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
spellingShingle |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate Benício,Kadja respiratory muscles nasal inspiratory pressure physical therapy |
title_short |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
title_full |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
title_fullStr |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
title_full_unstemmed |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
title_sort |
Effects of diaphragmatic control on the assessment of sniff nasal inspiratory pressure and maximum relaxation rate |
author |
Benício,Kadja |
author_facet |
Benício,Kadja Dias,Fernando A. L. Gualdi,Lucien P. Aliverti,Andrea Resqueti,Vanessa R. Fregonezi,Guilherme A. F. |
author_role |
author |
author2 |
Dias,Fernando A. L. Gualdi,Lucien P. Aliverti,Andrea Resqueti,Vanessa R. Fregonezi,Guilherme A. F. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Benício,Kadja Dias,Fernando A. L. Gualdi,Lucien P. Aliverti,Andrea Resqueti,Vanessa R. Fregonezi,Guilherme A. F. |
dc.subject.por.fl_str_mv |
respiratory muscles nasal inspiratory pressure physical therapy |
topic |
respiratory muscles nasal inspiratory pressure physical therapy |
description |
OBJECTIVE: To assess the influence of diaphragmatic activation control (diaphC) on Sniff Nasal-Inspiratory Pressure (SNIP) and Maximum Relaxation Rate of inspiratory muscles (MRR) in healthy subjects. METHOD: Twenty subjects (9 male; age: 23 (SD=2.9) years; BMI: 23.8 (SD=3) kg/m2; FEV1/FVC: 0.9 (SD=0.1)] performed 5 sniff maneuvers in two different moments: with or without instruction on diaphC. Before the first maneuver, a brief explanation was given to the subjects on how to perform the sniff test. For sniff test with diaphC, subjects were instructed to perform intense diaphragm activation. The best SNIP and MRR values were used for analysis. MRR was calculated as the ratio of first derivative of pressure over time (dP/dtmax) and were normalized by dividing it by peak pressure (SNIP) from the same maneuver. RESULTS: SNIP values were significantly different in maneuvers with and without diaphC [without diaphC: -100 (SD=27.1) cmH2O/ with diaphC: -72.8 (SD=22.3) cmH2O; p<0.0001], normalized MRR values were not statistically different [without diaphC: -9.7 (SD=2.6); with diaphC: -8.9 (SD=1.5); p=0.19]. Without diaphC, 40% of the sample did not reach the appropriate sniff criteria found in the literature. CONCLUSION: Diaphragmatic control performed during SNIP test influences obtained inspiratory pressure, being lower when diaphC is performed. However, there was no influence on normalized MRR. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552016000100096 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552016000100096 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/bjpt-rbf.2014.0101 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia |
publisher.none.fl_str_mv |
Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia |
dc.source.none.fl_str_mv |
Brazilian Journal of Physical Therapy v.20 n.1 2016 reponame:Brazilian Journal of Physical Therapy instname:Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT) instacron:ABRAPG-FT |
instname_str |
Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT) |
instacron_str |
ABRAPG-FT |
institution |
ABRAPG-FT |
reponame_str |
Brazilian Journal of Physical Therapy |
collection |
Brazilian Journal of Physical Therapy |
repository.name.fl_str_mv |
Brazilian Journal of Physical Therapy - Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT) |
repository.mail.fl_str_mv |
contato@rbf-bjpt.org.br||contato@rbf-bjpt.org.br |
_version_ |
1754575950514749440 |