1. Proper explanation of the interventions used in each reviewed study is necessary. For example on page 7, line 60, the duration of the intervention should be mentioned.
2. Some of the abbreviations used in the manuscript, lack proper description (e.g. RCT) or the description is not available in the first time used in the text (e.g. TUG). If you want to use abbreviations in the manuscript please note that you have to explain them the first time you have used in the text.