about the total experience of childbirth was evaluated. Itseems that if women are able to manage their childbirth pain, they evaluate themselves more pleasingly. Moreover,expectation is regarded as a major contributing factor to satisfaction [33]. Researchers have shown that when
childbirth expectations are met, women are more satisfied[34]. Expectations are related to several aspects of labor and delivery, such as emotions [35], the length of labor
[36], the need for interventions [35], the condition of thechild [34], and the support of the partner and the medical staff [37]. The expectations of subjects were not considered
in this study.Because the position of mother during labor has effects on labor pain [38], to reduce the possible bias, participants in both groups were in the same reclining position in
this study.Some limitations were present in this study. Labor pain was measured for 120 minutes during maximum slope phase that thus would not allow determining the effect of the heat therapy during all stages of labor. Also, previously experienced pain was not considered in this study, and it might influence their reporting pain scores.In this study, there were only single point differences in the pain scores between groups at multiple time points. It must be stated that while these were statistically significant at 60 and 90 minutes after intervention, a minimally
clinical important difference is normally considered to be a two-point change [39]. The clinical significance of these differences was not evaluated in this study. To help reduce
possible bias, this study planned single-blinded because masking of participants and their birth attendants was