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

Strength capability while kneeling

C M Haslegrave1, M F Tracy, E N Corlett

  • 1Institute for Occupational Ergonomics, University of Nottingham, UK.

Ergonomics
|January 7, 1998
PubMed
Summary
This summary is machine-generated.

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

Foot Pedal Forces for Seated Operators.

Ergonomics·2017
Same author

A biomechanical manikin for the evaluation of loads on the body.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Introduction.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Evaluation of spinal loads and chair design in seated work tasks.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Predicting postures adopted for force exertion: Thesis summary.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Strength and posture guidelines: a biomechanical approach: thesis summary.

Clinical biomechanics (Bristol, Avon)·2013
Same journal

Evaluating generative AI teaching assistants in simulated learning environments: how instructor type and support type affect students' perceptions.

Ergonomics·2026
Same journal

Swipe smart, not hard: hand health of smartphone users in a university population.

Ergonomics·2026
Same journal

Couriers' work-related musculoskeletal disorders and psychological distress: Insights for work errors and traffic safety.

Ergonomics·2026
Same journal

Quantity and thumbnail display effects on semi-autonomous ground vehicle operators' performance and mental workload: the moderating role of spatial ability.

Ergonomics·2026
Same journal

How information density modulates viewport switching costs: evidence from a dual-task behavioural study.

Ergonomics·2026
Same journal

Field assessment of a passive back exoskeleton in the aeronautics industry: biomechanical responses and worker acceptance.

Ergonomics·2026
See all related articles

This study measured male isometric strength while kneeling, finding that task factors like exertion direction and reach significantly reduce capabilities. Strength may also be lower when kneeling on two knees versus one.

Area of Science:

  • Ergonomics and Human Factors
  • Occupational Biomechanics
  • Workplace Safety

Background:

  • Many jobs require kneeling in confined spaces, posing potential risks during forceful tasks.
  • Assessing strength capabilities of kneeling workers is crucial for understanding and mitigating these risks.
  • Existing data on isometric strength in kneeling postures is limited, especially concerning task-specific factors.

Purpose of the Study:

  • To quantify isometric strength in male subjects performing single-handed exertions while kneeling.
  • To investigate how task layout factors influence kneeling strength.
  • To provide data for risk assessment in occupations involving kneeling postures.

Main Methods:

  • Isometric strength measurements were taken for male subjects in various kneeling postures.

Related Experiment Videos

  • Task layout variables included direction of force, reach distance, workpiece height, and orientation.
  • Data was collected and analyzed to determine the impact of these factors on maximal voluntary contraction.

    • Main Results:

    • Isometric strength is significantly reduced under kneeling conditions compared to unconstrained postures.
    • Direction of force exertion and reach distance were identified as the most influential factors affecting strength.
    • Preliminary findings suggest a potential decrease in strength when kneeling on two knees compared to one knee.

    Conclusions:

    • Task layout critically impacts strength capabilities when working in kneeling postures.
    • The findings provide valuable data for designing safer work environments and tasks for kneeling occupations.
    • Further research is recommended to directly compare strength differences between one-knee and two-knee kneeling positions.