Sample size calculation and reporting of the clinical trial
To detect an effect size of Cohen’s d = 0.80 with 80% power (alpha = 0.05), G*power software (version 3.1.9.7) suggested we need 52 participants (26 in each group) in an independent sample t-test. We ended up, however, with 33 subjects. A flow diagram according to the Consolidated Standards of Reporting Trials (CONSORT) statement is presented in Fig. 
Flow chart outlining the progression of the clinical trial