Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Spine loading and trunk kinematics during team lifting.

W S Marras1, K G Davis, B C Kirking

  • 1Biodynamics Laboratory, Ohio State University, Columbus, USA.

Ergonomics
|December 3, 1999
PubMed
Summary

Team lifting reduces spine compression but increases lateral shear under asymmetric conditions. Understanding trunk kinematics is key to optimizing two-person lifting safety and effectiveness.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Comprehensive Evaluation of Job Rotation: Biomechanical Risk, Body Discomfort, and Psychosocial Demands.

Human factors·2026
Same author

Assessment of the occupational exposures within homes for home healthcare workers in the United Kingdom.

Human factors in healthcare·2025
Same author

An Ergonomic Comparison of Data Entry Work Using a Keyboard vs. Touch Screen Input Device While Standing and Sitting.

Journal of ergonomics·2025
Same author

An EMG-driven biomechanical model of the canine cervical spine.

Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology·2017
Same author

MRI cross sectional atlas of normal canine cervical musculoskeletal structure.

Research in veterinary science·2016
Same author

A quantitative description of typing biomechanics.

Journal of occupational rehabilitation·2013

Area of Science:

  • Ergonomics and Biomechanics
  • Occupational Safety and Health

Background:

  • Team lifting is common for heavy or awkward loads, but lacks established safety limits.
  • Existing research presents conflicting findings on individual vs. team lifting capacity.
  • Understanding biomechanics of team lifting is crucial for injury prevention.

Purpose of the Study:

  • To investigate spine loading differences between one-person and two-person lifting.
  • To analyze how lifting symmetry affects spine loading in team lifts.
  • To correlate spine loading with trunk kinematic patterns during lifting.

Main Methods:

  • Subjects performed one- and two-person lifts under symmetric and asymmetric conditions.
  • Spine compression and lateral shear forces were measured.
  • Trunk kinematics were analyzed to understand movement patterns.

Main Results:

  • Two-person lifting resulted in lower spine compression for symmetric lifts.
  • Asymmetric two-person lifts significantly increased lateral shear forces.
  • Differences in trunk kinematics explained observed spine loading variations.

Conclusions:

  • Team lifting alters spine loading dynamics compared to individual lifting.
  • Lifting conditions (symmetry) critically influence the biomechanical outcomes of team lifts.
  • Further research into team lifting kinematics can inform safer handling practices.

Related Experiment Videos