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Titre : | Comparison of the effects of 1 MHz and 3 MHz therapeutic ultrasound on endothelium-dependent vasodilation of humans: a randomised clinical trial (2019) |
Auteurs : | M. Hauck ; C. Noronha Martins ; M. Borges Moraes |
Type de document : | Article |
Dans : | Physiotherapy (Vol. 105, n° 1, 2019) |
Article en page(s) : | p. 120-125 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Endothélium vasculaire ; Monoxyde d'azote ; Ultrasonothérapie |
Résumé : |
Objective
To compare the effects of different waveforms of 1 MHz and 3 MHz therapeutic ultrasound on endothelial function in healthy subjects. Design Randomised placebo-controlled, crossover study with concealed allocation and assessor blinding. Setting Imaging Centre of the University Hospital. Participants Thirty volunteers aged between 18 and 35 years were divided into two homogeneous groups (1 MHz and 3 MHz). Interventions Continuous (CUT; 0.4 W/cm2SATA), pulsed (PUT; 20% duty cycle, 0.08 W/cm2SATA) and placebo waveforms (equipment off) of ultrasound (1 MHz and 3 MHz) were randomized and applied over the brachial artery for 5 minutes. Main outcome measures Endothelial function was evaluated using the flow-mediated dilation (FMD) technique. Results Both 1 MHz [CUT: mean difference 4%, 95% confidence interval (CI) 2 to 6%, P Conclusion Both CUT and PUT ultrasound waveforms improved endothelial function. The 1 MHz and 3 MHz frequencies of therapeutic ultrasound led to similar improvement in endothelial function in healthy volunteers. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S003194061730336X |