Abstrak: Faktor kelelahan merupakan salah satu penyebab terjadinya kecelakaan. Penelitianini bertujuan untuk mengetahui gambaran potensi kelelahan akut berdasarkanskala OFER dan jenis alat berat, menganalisa hubungan faktor work-relatedfatigue(durasi kerja, beban kerja dan shift kerja),faktor non-work-relatedfatigue(usia, status gizi, commuting time, jumlah jam tidur) dengan potensikelelahan akut pada operator alat berat. Penelitian ini dilakukan bulan Aprilhingga Juli 2016 pada operator alat berat di area 1 tambang Bukit Karang Putih.Jumlah responden penelitian 50 orang. penelitian kuantitatif observasional,metode cross-sectional. Pengukuran kelelahan menggunakan kuesioner skalaOccupational Fatigue Exhaustion Recovery (OFER) dan hasilnya menunjukkanbahwa 48% responden mempunyai potensi kelelahan akut sedang, 44% potensikelelahan akut pada operator dump truck, shift kerja mempunyai hubungan yangsignifikan terhadap potensi kelelahan akut tinggi dan sedang (p value = 0.027).diharapkan PT Semen Padang memberikan edukasi tentang faktor risiko kelelahanpada operator alat berat.Kata Kunci:Potensi Kelelahan Akut, Kelelahan Operator Alat Berat, Skala OFER, Shift

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Fatigue is one of the cause of accidents. The objective of this study is to examineacute fatigue potential based on a Occupational Fatigue Exhaustion Recovery(OFER) scale and types of heavy equipment, analyze the relationship betweenwork-related fatigue (duration, workload and shift work), response to non-work-related fatigue (age, nutritional status, commuting time, the number of hours ofsleep) with the occurrence of fatigue on heavy equipment operator. This researchwas conducted from April until July 2016 at heavy equipment operator in themine area 1 Bukit Karang Putih. Number of study respondents 50 people. Thestudy is observational quantitative research with cross-sectional method.Measurement of fatigue using a OFER scale and the results show that 48% ofrespondents experiencing moderate acute fatigue, 44% of dump truckexperiencing high acute fatigue, shift has significant correlation with high andmoderate acute fatigue potential (p value = 0.027). recomendation to company PTSemen Padang to provide education or training about risk factor fatigue to heavyequipment operator.Keywords:Acute fatigue, Heavy Equipment Operator Fatigue, OFER Scale, Shift