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Fatigue and Recovery of Muscles for Pulling Tasks

Author

Listed:
  • Cannan Yi

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China)

  • Huali Zuo

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China)

  • Caijun Zhao

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China)

  • Kai-Way Li

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China
    Department of Industrial Management, Chung Hua University, Hsinchu 30012, Taiwan)

  • Hong Hu

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China)

  • Fan Tang

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China)

  • Tong Long

    (School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang 421102, China)

Abstract

Manual materials handling (MMH) contributes to musculoskeletal disorders (MSDs) in the workplace. The development and recovery of muscle fatigue are essential in work/rest arrangements for MMH tasks. A pulling experiment, including a muscle fatigue test and a muscle fatigue recovery test, was conducted. In the muscle fatigue test, the participant performed a pulling task on a treadmill with a walking velocity of 1 km/h until they could no longer do so. The load was either 30 or 45 kg. The maximum endurance time ( MET ) was recorded. The pull strength ( PS ) of the participant both before and after the pulling task was measured. The subjective ratings of muscle fatigue after the pulling task were recorded. In the muscle fatigue recovery test, the participant took a rest after performing the pulling task. The participants reported their subjective ratings of muscle fatigue on the CR-10 scale after taking a rest for a time period t, where t = 1, 2,…, 6 min. The PS of the participant was then measured again. It was found that the load significantly affected the MET for pulling tasks. The load was insignificant to the decrease of the PS , but was significant to the decrease rate ( PS decrease per min) of the PS . The PS decrease rate for the 45 kg condition (30.8 ± 16.5 N/min) was significantly higher ( p < 0.05) than that of the 30 kg condition (15.4 ± 5.5 N/min). The recovery time significantly affected the PS and CR-10 . Two MET models were established to explore the development of muscle fatigue in pulling tasks. A PS model was constructed to describe the recovery of muscle force. A CR-10 model was proposed to show the subjective ratings of recovery. These models are beneficial for determining the work/rest allowance for pulling tasks.

Suggested Citation

  • Cannan Yi & Huali Zuo & Caijun Zhao & Kai-Way Li & Hong Hu & Fan Tang & Tong Long, 2022. "Fatigue and Recovery of Muscles for Pulling Tasks," IJERPH, MDPI, vol. 19(22), pages 1-14, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:22:p:15159-:d:975421
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    References listed on IDEAS

    as
    1. Cannan Yi & Fan Tang & Kai-Way Li & Hong Hu & Huali Zuo & Caijun Zhao, 2022. "Modeling and Validation of Fatigue and Recovery of Muscles for Manual Demolition Tasks," IJERPH, MDPI, vol. 19(2), pages 1-15, January.
    2. Kai Way Li & Jenn Chun Chu & Ching Chung Chen, 2019. "Strength Decrease, Perceived Physical Exertion and Endurance Time for Backpacking Tasks," IJERPH, MDPI, vol. 16(7), pages 1-13, April.
    3. Kai Way Li & Wen-Sheng Chiu, 2015. "Isometric Arm Strength and Subjective Rating of Upper Limb Fatigue in Two-Handed Carrying Tasks," PLOS ONE, Public Library of Science, vol. 10(3), pages 1-14, March.
    4. Cannan Yi & Kai Way Li & Fan Tang & Huali Zuo & Liang Ma & Hong Hu, 2018. "Pulling strength, muscular fatigue, and prediction of maximum endurance time for simulated pulling tasks," PLOS ONE, Public Library of Science, vol. 13(11), pages 1-12, November.
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    Cited by:

    1. Philipp Heimberger & Andreas Lichtenberger, 2023. "RRF 2.0: A Permanent EU Investment Fund in the Context of the Energy Crisis, Climate Change and EU Fiscal Rules," wiiw Policy Notes 63, The Vienna Institute for International Economic Studies, wiiw.
    2. Philipp Heimberger & Andreas Lichtenberger, 2022. "RRF 2.0: Ein permanenter EU-Investitionsfonds im Kontext von Energiekrise, Klimawandel und EU-Fiskalregeln," wiiw Research Reports in German language 23, The Vienna Institute for International Economic Studies, wiiw.

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