Short-term effectiveness of high- and low-intensity percutaneous electrolysis in patients with patellofemoral pain syndrome: A pilot study
Juan Antonio Valera-Calero, Alberto Sánchez-Mayoral-Martín, Department of Physiotherapy, Camilo Jose Cela University, Madrid 28692, Spain
Umut Varol, Business Analytics and Big Data, IE School of Human Sciences and Technology, Madrid 28006, Spain
Author contributions: Valera-Calero JA conceived and designed the study; Valera-Calero JA, Varol U, and Sánchez-Mayoral-Martín A contributed to data acquisition; Valera-Calero JA analyzed and interpreted the data; Valera-Calero JA drafted and critically revised the manuscript; Valera-Calero JA contributed to the statistical analysis and supervised the study.
Institutional review board statement: This manuscript was revised and approved by the Institutional Ethics Committee of Clinical Research of Alfonso X el Sabio University (UAX 26-02-2020).
Clinical trial registration statement: The study protocol is prospectively registered and available at ClinicalTrials.gov (NCT04390438).
Informed consent statement: All participants read and signed a written consent prior to their participation in the study.
Conflict-of-interest statement: The authors declared no potential conflicts of interest.
Data sharing statement: The data that support the findings of this study are available from the corresponding author (JA Valera-Calero), upon reasonable request.
CONSORT 2010 statement: This clinical trial followed the CONSORT for pragmatic clinical trials.
: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Juan Antonio Valera-Calero, MSc, PhD, Physiotherapist, Professor, Physiotherapy, Camilo Jose Cela University, Calle castillo de Alarcón 49, Madrid 28692, Spain. firstname.lastname@example.org
Received: February 26, 2021
Peer-review started: February 26, 2021
First decision: May 3, 2021
Revised: May 3, 2021
Accepted: August 4, 2021
Article in press: August 4, 2021
Published online: October 18, 2021