2.2. Study Design
musculoskeletal disease
MUSCULOSKELETAL DISEASE, HIGH BLOOD PRESSURE, HEART DISEASE
This study was set as a randomized controlled trial to confirm the effect of SMS intake for 4 weeks. The study was double-blinded to increase the data reliability. Study participants were instructed not to exercise excessively the day before the measurements. A basic medical questionnaire was issued to assess whether the participants had high blood pressure, heart disease, or musculoskeletal disease and were receiving drug treatment, or whether there were any restrictions on participation in the study. The overall design of this study is presented in 