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Pada tahun 2003 WHO memperkirakan prevalensi gangguan otot rangka mencapai hampir 60 % dari semua penyakit akibat kerja dengan lokasi tersering pada bagian punggung bawah. Dari hasil penelitian secara nasional yang dilakukan di 14 kota di Indonesia oleh PERDOSI tahun 2002, ditemukan 18,13% penderita low back pain. Penelitian ini bertujuan untuk mengetahui hubungan waktu kerja dan ergonomic kerja terhadap keluhan low back pain pada sopir angkot di Kota Bukittinggi. Jenis penelitian yang digunakan adalah penelitian analitik dengan pendekatan cross-sectional yang dilakukan pada sopir angkot di Kota Bukittinggi bulan Agustus - September 2016. Teknik pengambilan sampel menggunakan random sampling. Jumlah sampel dalam penelitian ini sebanyak 169 responden. Data diperoleh melalui observasi, wawancara dan pembagian kuesioner kepada responden. Data yang diperoleh diolah secara univariat dan bivariat dan dianalisis dengan menggunakan metode statistik chi square dengan program komputerisasi. Dari hasil analisis penelitian terhadap169 sopir angkot terdapat 60 (35,5%) respoden dengan waktu kerja yang tidak sesuai, 87 (51,5%) responden dengan kerja yang tidak ergonomi, dan 112 (66,3%) responden mengalami keluhan low back pain. Uji statistik yang dilakukan pada waktu kerja terhadap keluhan low back pain didapatkan p value = 0,267 (pv >0,05) dengan OR=0,651, sedangkan untuk ergonomic kerja terhadap keluhan low back pain didapatkan p value = 0,000 (pv < 0,05) dengan OR=7,601. Pada penelitian ini didapatkan kesimpulan bahwa waktu kerja tidak berhubungan dengan keluhan low back pain, sedangkan ergonomi kerja mempunyai hubungan yang bermakna terhadap keluhan low back pain pada sopir angkot. Untuk itu diharapkan pada sopir angkot agar menerapkan posisi duduk yang ergonomi saat mengemudi.

In the year of 2003, WHO estimated that the prevalence of skeletal muscles disorders had reached by 60% from all work-caused diseases. From the results of national studies conducted in 14 cities in Indonesia by PERDOSI 2002, found 18.13% of patients with low back pain. This research is aimed to know the correlation of working hours duration and work ergonomics towards the low back pain on the public transportation drivers in the city of Bukittinggi. The type of research that is used was the analytical research by using the crosssectional approach that was carried out on the IKABE public transportation drivers in the city of Bukittinggi on the month of August - September 2016. The sampling technique used was random sampling. The total of sample in this research was 169 respondents. The data were obtained through the observations, interviews and dissemination of questionnaires to the respondents. The data that had been obtained were then processed univariately as well as bivariately and analyzed by using the chisquare statistical method with computerized program. The results of analysis from this research towards 169 public transportation drivers showed that there were 60 (35.5%) of respondents to the working time is not appropriate, 87 (51.5%) of respondents with inadequate working ergonomics, and 112 (66.3%) of respondents had complaints of low back pain. The statistical test used on the working hours duration towards the low back pain complaints could find the p value of 0.267 (pv>0.05) with OR=0,651, as for the work ergonomic towards the low back pain complaints, the p value was 0.000 (pv<0.05) with OR=7,601. It could then be concluded from this research that the working hours duration did not correlate to the low back pain complaints while the work ergonomics did possess such a significant correlation to the low back pain complaints on the public transportation drivers.For that is expected on public transportation drivers to adopt an ergonomic sitting position while driving.