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Manual material handling (MMH) is the most common cause of occupational fatigue and low back pain. This study aimed to determine the maximum acceptable weight of lift (MAWL) and rating of perceived exertion (RPE) among young workers using the psychophysical approach. Sixty healthy Thai youth aged 18–24 years old performed at five different lifting frequencies (1, 2, 4, 6, and 12 lifts/min) in the sagittal plane as followed the NIOSH lifting technique. The results indicated that the MAWL at five different lifting frequencies (12, 6, 4, 2, and 1 lifts/min) were 2.0, 2.29, 3.00, 4.50, and 5.50 Kilograms, respectively. The RPE of participants with 12 lifts/min of lifting frequency revealed that men and women had the highest means of RPE at 5.63 and 5.17, respectively. The reference mass of this study can be used as a guide to safe manual handling at work.

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Maximum Acceptable Weight of Lift Among Thai Youth Age Group Between 18–24 Years Old Using Psychophysical Approach

  • 会议论文

  • 发表日期：

    2025年

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  • Teeraphun Kaewdok,
  • Nutsuda Suksa-nga,
  • Naris Charoenporn,
  • Manida Swangnetr Neubert,
  • Chanon Kongkamol,
  • Chanya Jiemjai,
  • Ekarat Sombatsawat

摘要

Manual material handling (MMH) is the most common cause of occupational fatigue and low back pain. This study aimed to determine the maximum acceptable weight of lift (MAWL) and rating of perceived exertion (RPE) among young workers using the psychophysical approach. Sixty healthy Thai youth aged 18–24 years old performed at five different lifting frequencies (1, 2, 4, 6, and 12 lifts/min) in the sagittal plane as followed the NIOSH lifting technique. The results indicated that the MAWL at five different lifting frequencies (12, 6, 4, 2, and 1 lifts/min) were 2.0, 2.29, 3.00, 4.50, and 5.50 Kilograms, respectively. The RPE of participants with 12 lifts/min of lifting frequency revealed that men and women had the highest means of RPE at 5.63 and 5.17, respectively. The reference mass of this study can be used as a guide to safe manual handling at work.