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Abstract Background and Aim: Music therapy is a technique by which music applies its effects through regulation of body rhythms and adjusts the physiological responses in several ways. Music has relaxation and anti-anxiety effects however, evidence about its physiological effects is inconsistent. This research was carried out to determine the effect of light music on physiological parameters of patients with traumatic brain injuries. Materials and Methods: In this before-after clinical trial, 35 patients with traumatic brain injuries hospitalized at ICU wards of Shohadae Tajrish and Loghman Hakim hospitals were selected by purposive sampling in 2011. The data were collected by a demographic questionnaire, a physiological parameters form, Glasgow Coma Scale (GCS) and biophysiological measuring devices. Physiological parameters and GCS were measured before and after listening to light music. The data were analyzed by SPSS using RM- ANOVA and Bonferroni tests. Results: Comparing the means of physiological parameters before and after the intervention showed significant differences (p<0.001) i.e., the mean of SPO2 increased and the means of pulse rate, respiratory rate, systolic blood pressure, diastolic blood pressure, arterial pressure and body temperature decreased. The mean of pulse pressure decreased with no significance (p=0.197). Conclusion: The results showed that light music can adjust physiological parameters of patients with traumatic brain injuries. This study recommends that the managers of hospitals develop a practical strategy to use light music in order to adjust the physiological parameters of patients at ICU wards.

Keywords: Light music, music therapy, physiological parameters

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