Participants
The experimental group involved 60 first-year students (25 females and 35 males). The average age is 18.2 years. The control group involved 28 males and 32 females with an average age of 18.3 years. Students were assigned randomly to groups to ensure the experiment’s validity. The random number method was used and met the student’s number in the educational journal. Parameters such as height, weight and lung capacity were also taken into account with the permission and consent of the respondents.