Efficacy of telehealth core exercises during COVID-19 after bariatric surgery: a randomized controlled trial.

"Conflicts of interest.—The authors certify that there is no conflict of interest with any financial organization regarding the material discussed in the manuscript."

"Acknowledgements.— The authors acknowledge Taif University researchers supporting project number (TURSP-2020/291), Taif University, Taif, Saudi Arabia."

"In this study the inclusion criteria was at least 6 months after BS. Subjects who were involved in a structured physical activity program; subjects with systematic or visceral diseases, nerve root compression, spine disorders, previous surgery, lower limb injury, or pregnant females were excluded from the program.18 This study was approved by BMC Ethical Board (UB-RES-2021-0021) with Clinical Registration No. (NCT04932694). Eligible subjects were randomly assigned with the study and control groups by a blinded independent researcher. Randomization was performed to allocate groups using generated computer numbers in sealed opaque envelopes. Informed consent was obtained from the eligible patients after being presented with a detailed description of the study’s aims and procedures. The study protocol was conducted according to the Declaration of Helsinki, and the sample size was calculated based on the core endurance test, which was the primary outcome of this study. The G power software (Universities, Dusseldorf, Germany) was used to estimate the sample size following the power of 80%, a P value of 0.05, and an effect size of 0.82. A sample size of 25 subjects in each group was required, and 61 subjects were initially included to account for dropouts ()."