The effects of age and type of carrying task on lower extremity kinematics.

Details

• Personal Author:
  Gillette JC ; Meardon SA ; Miller RH ; Schwab CV ; Stevermer CA
• Description:
  The purpose of this study was to determine the effects of age, load amount and load symmetry on lower extremity kinematics during carrying tasks. Forty-two participants in four age groups (8-10 years, 12-14 years, 15-17 years and adults) carried loads of 0%, 10% and 20% body weight (BW) in large or small buckets unilaterally and bilaterally. Reflective markers were tracked to determine total joint range of motion and maximum joint angles during the stance phase of walking. Maximum hip extension, hip adduction and hip internal rotation angles were significantly greater for each of the child/adolescent age groups as compared with adults. In addition, maximum hip internal rotation angles significantly increased when carrying a 20% BW load. The observation that the 8-10-year-old age group carried the lightest absolute loads and still displayed the highest maximum hip internal rotation angles suggests a particular necessity in setting carrying guidelines for the youngest children. [Description provided by NIOSH]
• Subjects:
  Agriculture Biomechanical Phenomena Ergonomics Farmers Musculoskeletal System Occupational Health Safety
• Keywords:
  Author Keywords: Biomechanics; Gait; Load Carriage; Youth Biomechanics; Children; Farm Workers; Agricultural Workers; Agriculture; Lifting; Lower Extremities; Muscle Function; Posture; Ergonomics;
• ISSN:
  0014-0139
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Iowa ; Massachusetts ; OSHA Region 1 ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  355-364
• Volume:
  53
• Issue:
  3
• NIOSHTIC Number:
  nn:20065340
• Citation:
  Ergonomics 2010 Mar; 53(3):355-364
• Contact Point Address:
  Jason C. Gillette, Department of Kinesiology, Iowa State University, Ames, Iowa
• Email:
  gillette@iastate.edu
• Federal Fiscal Year:
  2010
• Performing Organization:
  Iowa State University
• Peer Reviewed:
  True
• Start Date:
  20030901
• Source Full Name:
  Ergonomics
• End Date:
  20070831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cb691d525452ec2ce5792d0bf31dbed5bdd96af9a2c8cc739308354d97387e34ce6514dc17f877c8f4a6ec644d80b43eb4fdcfc8c1b5eef6a452a9b47686d76d
• Download URL:
  https://stacks.cdc.gov/view/cdc/249408/cdc_249408_DS1.pdf
• File Type:
  [PDF - 765.11 KB ]