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Article History

Received: 8 May 2019

Accepted: 16 July 2019

First Online: 23 July 2019

Ethics approval and consent to participate

: This study was approved by the local institutional review board of Universidad Abierta Interamericana, Buenos Aires, Argentina (Nr. 0-1027). Written informed consent (including patients’ details, images, or videos) will be obtained from all participants. The trial was registered with (Protocol ID: CrupnikDolorClastMuscleInjury; ID: NCT03473899) dated March 22, 2018. All experiments will be performed in accordance with relevant guidelines and regulations. This study will be conducted in accordance to the Declaration of Helsinki.

: Not applicable.

: SS, NW, and AV declare that no competing interests exist. JC and PS have received speaker honoraria from Electro Medical Systems (Nyon, Switzerland), the distributor of the Swiss DolorClast extracorporeal shock wave device. CS has received research funding from Electro Medical Systems for his preclinical research at LMU Munich (unrestricted grant) and consulted (until December 31, 2017) for Electro Medical Systems. Furthermore, Electro Medical Systems has provided the sham EvoBlue handpiece for this study. However, Electro Medical Systems had no role in study design and in writing this manuscript, and will not have any role in data collection and analysis, interpretation of the data, decision to publish, and writing the manuscript once data from this study will be available. No other potential conflicts of interest relevant to this article were reported.