RESUMO
BACKGROUND: College students report feeling frequently stressed, which adversely impacts health. Meditation is one effective method for reducing stress, but program length and required effort are potential obstacles. Research on sound meditation, involving focused listening to sounds, is nascent but may appeal to undergraduates. The effects of listening to didgeridoo, an Australian wind instrument producing a low, resonant, droning sound, have not been studied. OBJECTIVE: This study compared the effect of a 30-minute didgeridoo sound meditation versus silent meditation with focus on one's breath on acute self-perceived stress and mood in undergraduates without prior meditation experience. METHODS: Seventy-four undergraduates were randomized to 2 interventions: (1) didgeridoo meditation (n = 40) performed live by a musician or (2) silent meditation (n = 34) taught by a meditation instructor. Immediate pre-post effects of the session were examined using the 4-Dimension Mood Scale and an item assessing acute self-perceived stress. Intervention acceptability was assessed postintervention. RESULTS: Two-way mixed analyses of variance were performed. Both groups reported significantly increased relaxation after meditation (Group D, P = .0001 and Group S, P = .0005). Both groups reported decreased negative arousal (Group D, P = .02 and Group S, P = .02), energy (Group D, P = .0001 and Group S, P = .003), tiredness (Group D, P = .0001 and Group S, P = .005), and acute stress (Group D, P = .0001 and Group S, P = .0007). Group Didgeridoo experienced significantly more relaxation (P = .01) and less acute stress (P = .03) than Group Silent. Fifty-three percent of silent participants and 80% of didgeridoo participants agreed that they would attend that type of meditation again. Forty-seven percent of silent participants and 80% of didgeridoo participants enjoyed the meditation. CONCLUSION: Didgeridoo sound meditation is as effective as silent meditation for decreasing self-perceived negative arousal, tiredness, and energy and more effective than silent meditation for relaxation and acute stress in undergraduates. Didgeridoo meditation participants reported higher levels of enjoyment and higher likelihood of attending another session. Further investigation into didgeridoo and sound meditation is warranted.