Comparing Upper Arm and Trunk Kinematics between Manufacturing Workers Performing Predominantly Cyclic and Non-cyclic Work Tasks

Details

• Alternative Title:
  Appl Ergon
• Personal Author:
  Schall, Mark C. ; Zhang, Xuanxuan ; Chen, Howard ; Gallagher, Sean ; Fethke, Nathan B.
• Description:
  Musculoskeletal disorders (MSDs) are common among manufacturing workers. Exposure to non-neutral postures and high movement speeds associated with MSDs among manufacturing workers may depend on the extent of the variability in the work tasks performed (i.e., predominantly "cyclic" versus "non-cyclic" work). The objectives of this study were to (i) compare mean levels of full-shift exposure summary metrics based on both posture and movement speed between manufacturing workers performing predominantly cyclic (n = 18) and non-cyclic (n = 17) tasks, and (ii) explore patterns of between- and within-worker exposure variance and between-minute (within-shift) exposure level and variation within each group. Inertial sensors were used to measure exposures for up to 15 full shifts per participant. Results indicated (i) substantially higher upper arm and trunk movement speeds among workers performing predominantly cyclic tasks relative to workers performing non-cyclic tasks despite similar postures, and (ii) greater exposure variability both between and within workers in the non-cyclic group.
• Subjects:
  Arm Article Biomechanical Phenomena Exposure Variability Humans Inertial Measurement Unit Low Back Movement Musculoskeletal Diseases Musculoskeletal Disorders Occupational Diseases Posture Shoulder Torso

  More +
• Source:
  Appl Ergon. 93:103356
• Pubmed ID:
  33454432
• Pubmed Central ID:
  PMC9298156
• Document Type:
  Journal Article
• Funding:
  K01 OH011183/OH/NIOSH CDC HHSUnited States/ ; T42 OH008436/OH/NIOSH CDC HHSUnited States/ ; T42OH008436/ACL/ACL HHSUnited States/
• Volume:
  93
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:19b6912561f2c08b3aafdfcde0b7ca81194b3355c7f3bddc3dc9a8ffacc7acac
• Download URL:
  https://stacks.cdc.gov/view/cdc/119562/cdc_119562_DS1.pdf
• File Type:
  [PDF - 695.90 KB ]