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Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial()
BACKGROUND: Shortwave diathermy (SWD) and microwave diathermy (MWD) are frequently used by physical therapists to treat musculoskeletal conditions. The therapeutic benefits are usually associated with an increase in tissue temperature; however, there is no consensus on the changes in blood flow. OBJ...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Departamento de Fisioterapia da Universidade Federal de Sao Carlos
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537464/ https://www.ncbi.nlm.nih.gov/pubmed/28460711 http://dx.doi.org/10.1016/j.bjpt.2017.03.008 |
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author | Sousa, Natanael Teixeira Alves De Guirro, Elaine Caldeira De Oliveira Calió, João Guilherme Queluz, Mariane Cristina De Guirro, Rinaldo Roberto De Jesus |
author_facet | Sousa, Natanael Teixeira Alves De Guirro, Elaine Caldeira De Oliveira Calió, João Guilherme Queluz, Mariane Cristina De Guirro, Rinaldo Roberto De Jesus |
author_sort | Sousa, Natanael Teixeira Alves De |
collection | PubMed |
description | BACKGROUND: Shortwave diathermy (SWD) and microwave diathermy (MWD) are frequently used by physical therapists to treat musculoskeletal conditions. The therapeutic benefits are usually associated with an increase in tissue temperature; however, there is no consensus on the changes in blood flow. OBJECTIVES: 1) To evaluate the behavior of temperature and arterial blood flow after the application of SWD and MWD to the lower limb of healthy women aged 18–30 and 2) to assess whether changes in limb positioning can influence SWD response. METHOD: Among the subjects analyzed, 40 women were eligible to participate in the trial and were randomly allocated to the SWD group or the MWD group. Each group received 20 min of diathermy. After receiving the interventions, all patients crossed over to the other group, but the devices were detuned (sham). SWD was applied to the posterior compartment of the thigh and leg, with the knee in 0° and 90° of flexion, and the MWD applied to the posterior thigh. Skin temperature evaluation (digital infrared thermography) and assessment of blood flow velocity (Doppler ultrasound) were performed immediately before and 10 and 20 min after the application. RESULTS: Arterial blood flow increased after SWD diathermy (vs. Sham), but not after MWD diathermy. SWD promoted skin heating at the end of therapy in all areas analyzed, remaining above baseline even 20 min after the end of the application. MWD diathermy promoted skin heating in the posterior thigh, reflecting a rise in the temperature of the popliteal fossa area that remained for 10 min after the end of the application. CONCLUSION: The increase in arterial blood flow velocity depends on the size of the heating area, since it was only observed in the application of the SWD. However, after 20 min of application, the position of the lower leg did not affect the heating. |
format | Online Article Text |
id | pubmed-5537464 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Departamento de Fisioterapia da Universidade Federal de Sao Carlos |
record_format | MEDLINE/PubMed |
spelling | pubmed-55374642017-08-14 Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() Sousa, Natanael Teixeira Alves De Guirro, Elaine Caldeira De Oliveira Calió, João Guilherme Queluz, Mariane Cristina De Guirro, Rinaldo Roberto De Jesus Braz J Phys Ther Original Research BACKGROUND: Shortwave diathermy (SWD) and microwave diathermy (MWD) are frequently used by physical therapists to treat musculoskeletal conditions. The therapeutic benefits are usually associated with an increase in tissue temperature; however, there is no consensus on the changes in blood flow. OBJECTIVES: 1) To evaluate the behavior of temperature and arterial blood flow after the application of SWD and MWD to the lower limb of healthy women aged 18–30 and 2) to assess whether changes in limb positioning can influence SWD response. METHOD: Among the subjects analyzed, 40 women were eligible to participate in the trial and were randomly allocated to the SWD group or the MWD group. Each group received 20 min of diathermy. After receiving the interventions, all patients crossed over to the other group, but the devices were detuned (sham). SWD was applied to the posterior compartment of the thigh and leg, with the knee in 0° and 90° of flexion, and the MWD applied to the posterior thigh. Skin temperature evaluation (digital infrared thermography) and assessment of blood flow velocity (Doppler ultrasound) were performed immediately before and 10 and 20 min after the application. RESULTS: Arterial blood flow increased after SWD diathermy (vs. Sham), but not after MWD diathermy. SWD promoted skin heating at the end of therapy in all areas analyzed, remaining above baseline even 20 min after the end of the application. MWD diathermy promoted skin heating in the posterior thigh, reflecting a rise in the temperature of the popliteal fossa area that remained for 10 min after the end of the application. CONCLUSION: The increase in arterial blood flow velocity depends on the size of the heating area, since it was only observed in the application of the SWD. However, after 20 min of application, the position of the lower leg did not affect the heating. Departamento de Fisioterapia da Universidade Federal de Sao Carlos 2017 2017-03-21 /pmc/articles/PMC5537464/ /pubmed/28460711 http://dx.doi.org/10.1016/j.bjpt.2017.03.008 Text en © 2017 Associac¸˜ao Brasileira de Pesquisa e P´os-Graduac¸˜ao em Fisioterapia. Published by Elsevier Editora Ltda. All rights reserved. |
spellingShingle | Original Research Sousa, Natanael Teixeira Alves De Guirro, Elaine Caldeira De Oliveira Calió, João Guilherme Queluz, Mariane Cristina De Guirro, Rinaldo Roberto De Jesus Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
title | Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
title_full | Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
title_fullStr | Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
title_full_unstemmed | Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
title_short | Application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
title_sort | application of shortwave diathermy to lower limb increases arterial blood flow velocity and skin temperature in women: a randomized controlled trial() |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537464/ https://www.ncbi.nlm.nih.gov/pubmed/28460711 http://dx.doi.org/10.1016/j.bjpt.2017.03.008 |
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