<![CDATA[Latar Belakang: Nyeri persalinan kala I fase aktif dapat meningkatkan kecemasan dan ketegangan serta mengganggu kemampuan ibu beradaptasi terhadap kontraksi. Teknik pernapasan Lamaze merupakan intervensi nonfarmakologis yang sederhana, aman, dan mudah diterapkan. Di Puskesmas Pakuan Aji, teknik ini belum digunakan secara rutin untuk manajemen nyeri persalinan.Tujuan: Menganalisis perubahan intensitas nyeri persalinan kala I fase aktif sebelum dan sesudah pemberian teknik relaksasi pernapasan Lamaze.Metode: Penelitian menggunakan desain pre-eksperimental one-group pretest-posttest pada 27 ibu bersalin kala I fase aktif yang dipilih dengan purposive sampling dari populasi 63 ibu. Tahap persiapan penelitian dilakukan sejak Desember 2025 sampai persetujuan etik diterbitkan pada Mei 2026. Rekrutmen responden dan pengambilan data dimulai hanya setelah persetujuan etik diterbitkan dan berlangsung sampai Juni 2026. Intensitas nyeri diukur menggunakan Numeric Rating Scale (NRS) sebelum dan sesudah intervensi Lamaze. Analisis dilakukan secara univariat dan bivariat menggunakan uji Wilcoxon signed-rank karena data tidak berdistribusi normal.Hasil: Rata-rata skala nyeri menurun dari 6,59 ± 0,501 sebelum intervensi menjadi 4,78 ± 0,847 sesudah intervensi, dengan penurunan rata-rata 1,81 poin. Uji Wilcoxon menunjukkan perbedaan yang signifikan antara skor nyeri sebelum dan sesudah intervensi (p 0.001).Kesimpulan: Teknik relaksasi pernapasan Lamaze berhubungan dengan penurunan intensitas nyeri pada ibu bersalin kala I fase aktif dalam penelitian one-group pretest-posttest ini.Saran: Puskesmas dapat mempertimbangkan edukasi dan penerapan teknik pernapasan Lamaze sebagai intervensi pendamping nonfarmakologis, disertai SOP dan pelatihan bagi tenaga kesehatan. Kata kunci: Lamaze, nyeri persalinan, kala I fase aktif, relaksasi pernapasan ABSTRACT Background: Labor pain during the active phase of the first stage can increase anxiety and tension and may reduce maternal coping during contractions. Lamaze breathing is a simple, safe, and low-cost non-pharmacological approach that had not been routinely implemented at Pakuan Aji Community Health Center.Objective: To analyze the change in labor pain intensity before and after Lamaze breathing relaxation during the active phase of the first stage of labor.Methods: This pre-experimental one-group pretest-posttest study included 27 women in the active phase of the first stage of labor selected purposively from a population of 63. Research preparation was conducted from December 2025 until ethical approval was issued in May 2026. Participant recruitment and data collection began only after ethical approval and continued through June 2026. Pain intensity was measured using the Numeric Rating Scale (NRS) before and after the Lamaze intervention. Univariate analysis and the Wilcoxon signed-rank test were used because the pain scores were not normally distributed.Results: Mean pain intensity decreased from 6.59 ± 0.501 before the intervention to 4.78 ± 0.847 after the intervention, a mean reduction of 1.81 points. The Wilcoxon test showed a statistically significant pre-post difference (p 0.001).Conclusion: Lamaze breathing relaxation was associated with lower pain intensity during the active phase of the first stage of labor in this one-group pretest-posttest study.Suggestions: Primary care services may consider Lamaze breathing as a complementary non-pharmacological option, supported by clear procedures, educational materials, and staff training. Keywords: Lamaze, labor pain, active first stage, breathing relaxation ]]>
