“…Table 2 displays the study design in each for the selected articles. A total of 14 (70% of the total) articles were classified as observational studies (an experimental group that was only assessed once at the end of the intervention) [ 14 , 18 , 39 , 44 , 48 , 49 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 ]. Of them, seven (50%) followed a quantitative [ 18 , 39 , 48 , 49 , 54 , 56 , 57 ] and seven (50%) a qualitative methodology [ 14 , 44 , 52 , 53 , 55 , 58 , 59 ].…”