Abstract:
This study was quasi-experimental research with a one group-pretest-posttest design.
The objective of this research was to study the effect of an exercise promoting program applying
self-efficacy theory on changes in a sampled group comparisons of data before and after the
experiment in regard to knowledge about, attitudes toward, perceived self-efficacy to perform and
outcome-expectation of proper physical exercise, as well as actual physical exercise behavior were
made. The sample composed 30 selected students, of Mahidolwitayanuson School Thailand who
were considered as obese and borderline obese students. The data were collected by using a set of
questionnaires and a total of 4 program activities were implemented. The program lasted for 12
weeks. The data were analyzed by computing statistics regarding frequency, arithmetic mean,
percentage, standard deviation, and t-test.
The research results showed that there was a significant difference of mean scores between
before and after the experiment in regard to attitudes toward perceived self-efficacy to perform and
actual performance of proper physical exercise, at the confidence level of 0.05 No significant
difference was found in regard to knowledge about proper physical exercise and outcomeexpectation
of performing proper physical exercise, between before and after the experiment
It was found that the exercise promoting program applying self-efficacy theory was
effective in increasing perceived self-efficacy and physical exercise behavior