Effect of Multi-Sensory Interventions on Labor Pain, Comfort, and Birth Satisfaction

This study investigates the effects of four non-pharmacological, multi-sensory interventions-sacral massage, lavender aromatherapy, Turkish makam music, and aquarium visual stimulation-on key intrapartum outcomes. The trial uses a five-arm, parallel-group, randomized design conducted in the obstetrics clinic of Kütahya City Hospital. Participants will be randomly assigned using sealed, opaque envelopes. All sensory interventions will be applied during the active and transitional phases of labor by trained midwives following standardized procedures. Outcome assessment will be performed by personnel blinded to group allocation to minimize bias. The rationale for the selected sensory interventions is based on their proposed ability to modulate pain perception, enhance relaxation, and support emotional well-being through tactile, olfactory, auditory, or visual pathways. Each method has been previously used in maternity care, though comparative evidence in a multi-arm design is limited. The study will evaluate the safety, feasibility, and relative effectiveness of these interventions within routine clinical practice. Analyses will follow the intention-to-treat principle. Standard comparative tests (e.g., ANOVA and repeated-measures models) will be used to examine differences in pain trajectories and other outcomes across the five groups. The findings aim to generate clinically relevant evidence supporting the integration of culturally appropriate sensory strategies into intrapartum care to enhance women's childbirth experiences.