JOB ROTATION

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JOB ROTATION
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OUTLINE

• INTRODUCTION
• METHOD
• RESULTS
• DISCUSSION

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Job Rotation As a Factor in Reducing Physical
Workload at a Refuse Collecting Department

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Job Rotation

• enhance the skills of the employees
• reduce monotony in daily work
• alternate between different types of mechanical
  loads
• alternate between high and low energetic loads of
  different jobs

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The objective

• To investigate the affect of job rotation on
• the physical workload of the employees
• working at a refuse collecting department

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PARTICIPANTS

• 4 men as refuse collectors
• 4 men as street sweepers.

according to a non- rotation scheme

• according to a
• rotation scheme

• 4 men as refuse collectors / street sweepers
• 4 men as street sweepers/ drivers

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Physical Workload

• Perceived load the mean rate of the perceived
  fatigue and the perceived exertion during a day
• Energetic load the mean heart rate during the
  work day, represented as a percentage of the
  heart rate reserve
• Postural load the time during which flexion of
  the trunk was gt45 and elevation of one or two of
  the upper arms was gt 60

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Confounding Variables

• Task
• e.g. refuse colllecting, street
  sweeping
• Activity
• e.g. walking, sweeping
• Load handled
• e.g.polythene bag
• Number of bags lifted per lift

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Data Analysis

• ANOVA
• Stepwise Multiple Regression Analysis

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RESULTS

• Physical workload
• Confounding variables
• Effects of variables on physical workload

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DISCUSSION

• The aim of the job rotation was to divide equally
  the physically demanding work among the employees

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• Only the postural load of the trunk differs
  between refuse collectors/street sweepers and
  other groups.

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Two possible explanations 1- Change in tasks led
to different postures and activities

• 2- Job rotation in a more complete job.That makes
  job,
• less monotonous
• less aversion
• high motivation
• high intrinsic job satisfaction