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Transcript of OCCUPATIONAL FATIGUE ON HEAVY EQUIPMENT …drrc.ui.ac.id/acsel/lister/Oral Presentations/B28_ACSEL...
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OCCUPATIONAL FATIGUE ON HEAVY EQUIPMENT OPERATORS OF
PT. SAPTAINDRA SEJATI KABUPATEN TABALONG
KALIMANTAN SELATAN
MEILYA FARIKA INDAH, AKHMAD FAUZAN, MUHAMMAD LUFIRAHMANPublic Health Faculty
University of Islam Kalimantan (UNISKA) [email protected]
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PT SIS is one of mining companies in Indonesia which is a member of Adaro Energy Group, operating world class
heavy equipment
Study Background
2
Workers are at risk of injuries, or even death.Hazards exist when operating, maintaining,
or working around heavy equipment at mining company
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Shifts can often be 12-hours long, with drivers taking "microsleeps" when suffering from fatigue. Within public sectors, drivers’ drowsiness and inattention are key factors in contributing to commercial truck crashes, accounting for 1,200 deaths and 76,000 injuries each.Meanwhile, human error is responsible for around 93 % of haulage truck accidents in surface mining, and up to 70 percent of these are fatigue-related
Operators’ fatigue often happens in activities in mining using large vehicles, such as bulldozers and excavators. This causes
accidents within the mining industry
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To identify the occupational fatique on
heavy equiptment operators
To identify characteristics of heavy equiptment
operators
To analyze the relationship between nutritional status and fatigue in the heavy
equipment operators of PT SIS
To analyze the relationship between sleeping duration and occupational fatigue
on heavy equipment operators of PT SIS
OBJECTIVE
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Illustration below shows the theory of the cause of
fatigue from ILO (1998) in Encyclopedia of
Occupational Health & Safety quoted from
Grandjean (Tarwaka, 2004):
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METHOD
This study uses cross-sectional design with analytic observational method
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LOCATION
Tabalong
PT Adaro Indonesia (ADMO)
Tanah Bumbu
PT Borneo Indobara (BORO)
Binungan, Tanjung Redeb
PT Berau Coal (BIMO)Sambarata, Tanjung Redeb
PT Berau Coal (SAMO)
Balangan
PT Balangan Coal
ADMO is the largest jobsite in
the working area of PT.
Saptaindra Sejati
Customer : PT. ADARO INDONESIA
Working area includes 4 regencies (kabupaten):
1. Kab Tabalong
2. Kab. Balangan
3. Kab. Barito Timur
4. Kab. Barito Selatan
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POPULATION AND SAMPLE
SAMPLING TECHNIQUE simple
random sampling
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RESEARCH INSTRUMENTS
INTERVIEW Questionnaire About Subjective feelings of fatigue from Industrial Fatigue Research Committee (IFRC)
RESEARCH VARIABLE
1. Sleeping Duration2. Nutritional status
Occupational Fatique
INDEPENDENT VARIABLEDEPENDENT VARIABLE
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RESPONDENT CHARACTERISTICS
young29%
old71%
AGE
young old
34%
66%
period of work
new old
RESULT & DISCUSSION
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sufficient28%
lack of72%
SLEEPING DURATION
sufficient lack of
thin
5%
normal
40%fat
55%
NUTRITIONAL STATUS
no
fatigue0,9% light
23,3%
medium
33,2%
heavy
42,7%
OCCUPATIONAL FATIQUE
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ANALYSIS BIVARIATE
INDEPENDENTVARIABLE
DEPENDENT VARIABLEOCCUPATIONAL FATIQUE Total P
No fatigue
Light Medium Heavy
n % n % n % n % n %
Sleeping duration
≥ 7 hours 2 3,1 17 26,2 23 35,4 23 35,4 65 100
0,116
< 7 hours 0 0 37 22,2 54 32,3 76 45,5 167 100
Total 2 0,9 54 23,3 77 33,2 99 42,7 232 100
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INDEPENDENT VARIABLE
DEPENDENT VARIABLE(Fatigue) Total P
No fatigue Light Medium Heavy
n % n % n % n % n %
Nutritional status
Thin 0 0 4 33,3 6 50 2 16,7 12 100
0,05Normal 2 2,2 24 26,1 34 37 32 34,8 92 100
Fat 0 0 26 20,3 37 28,9 65 50,8 128 100
Total 2 0,9 54 23,3 77 33,2 99 42,7 232 100
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SYMPTOMS OF SUBJECTIVE FEELING
OF FATIQUE Yawning
Difficulty in keeping head still
Difficulty in concentrating
Difficulty in keeping eyes open
Hallucinating
Forgetting direction and route
Walking in zig-zag direction
Ignoring traffic signs
Forgetting to turn
Slow respond in stepping on the break
Slowing down unconsciously
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The decline of allertness
Biologically, allertness will decline when
surrounding temperature reaches the lowest
level, which is at 3-6 o’clock am. Concentration
level is also at the lowest level.
The highest risk to make fault caused by fatigue
happens at 3-5 o’clock am. Therefore, two-way
instruction to communication is highly
recommended.
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Impact 24 hours x 7 days Production Employees
Lack of sleep at home – barracks
Number of hours of sleep which had fallen sharply
Lack of Allertness because of lack of sleep
Drowsy
Syndrome of deviant behavior
Severe sleepiness in the workplace
Less cautious, allertness and performance in the workplace
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Fatigue vs. Accident
6 times more frequent happen to night shift workers
Twice more frequent happen to afternoon shift workers
Other high risks:
Performing more than 1 kind of job
Lack of sleep (less than 6 hours)
Staying awake more than 20 hours continually
Driving betweenmidnight to 6 o’clock am.
Sumber: AAA Study, J. Stutts, UNC 1999
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Sleeping well
Fatigue Management; Sufficient Sleep Habit:
1. Try to sleep only when really sleepy
2. Avoid alcohol and caffein 4-6 hours before bed time
3. Avoid smoking before bed time
4. Avoid exercising 4 hours before bed time
5. Consume snacks which contain carbohydrate before sleeping
6. Try to wake up at the same time every day
So, how much sleep do we need in a day?
Seven to eight hours is the ideal one.
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Fatigue Management
Comfortable and healthy sleepCreate a comfortable sleep condition and environment :
• Avoid direct contact of sun light
• Cover windows with dark-coloured curtain
• Wear eye cover
• Wear ear plugs
• Set a comfortable temperature
• Turn off phone ringtone or silent the phone
• Turn up alarm ringtone
• Inform family or roommate about your sleeping pattern
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Choose nutritious food
Nutritional
StatusRefreshing Effectivity
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CONCLUSION
1. The result of the study illustrates that the occupational fatigue level of heavy-equipment operators of PT Saptaindra Sejati Tanjung ranges from light fatigue prevalence of 23,3%, medium fatigue prevalence of 33,2%, heavy fatigue prevalence of 42,7%, and no fatigue prevalence of 0,9%.
2. There is no significant relationship between sleeping duration and occupational fatigue (P=0,116).
3. There is significant relationship between nutrition status and occupational fatigue with p value = 0,05 (P≤0,05.).
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THANK YOU