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

A study on optimum load for physical work.

T Li1, Z Liu, H Huang

  • 1Department of Applied Physiology, Institute of Occupational Medicine, Beijing, P.R. China.

Journal of Human Ergology
|June 1, 1992
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

[Vasomotor rhinitis following endoscopic sinus surgery: 5 cases report].

Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology·2003
Same author

[Correlation of p16 mutation and biological behavior in Chinese laryngeal cancer].

Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology·2003
Same author

[Primary restoration for congenital malformation of external and middle ear].

Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology·2003
Same author

[Diagnostic value of computer-based endoscopy system].

Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology·2003
Same author

[Guided tissue regeneration with Biomesh membrane for Class II furcation defects].

Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology·2003
Same author

Comparative study on the immunogenicity between Hsp70 DNA vaccine and Hsp65 DNA vaccine in human Mycobacterium tuberculosis.

Journal of Tongji Medical University = Tong ji yi ke da xue xue bao·2003

For walking at 5 km/h, carrying loads up to 25 kg is recommended for healthy men, equivalent to 39% of average body weight. Optimal physical loading for work is suggested at 20 kg, or 31% of body weight.

Area of Science:

  • Exercise Physiology
  • Biomechanics
  • Human Factors Engineering

Background:

  • Understanding the physiological and biomechanical responses to carrying loads during walking is crucial for optimizing physical work capacity and preventing injury.
  • Previous research has established general guidelines for load carriage, but specific recommendations considering walking speed and body weight percentages are needed for diverse populations.

Purpose of the Study:

  • To determine the optimal physical loading limits for healthy adult males during treadmill walking at various speeds.
  • To investigate the relationship between load carriage, walking speed, and physiological responses such as oxygen expenditure and heart rate.

Main Methods:

  • Five healthy males performed treadmill walking at 5, 7, and 9 km/h while carrying loads in a shoulder-waist-back configuration.

Related Experiment Videos

  • Key parameters measured included oxygen consumption, energy expenditure, heart rate, and subjective self-appraisal of exertion.
  • Multiple regression analysis was employed to analyze the experimental data and establish predictive models.

    • Main Results:

    • At a walking speed of 5 km/h, physical loading should not exceed 25 kg (approximately 39% of average male Chinese body weight).
    • The recommended suitable loading for physical work was determined to be 20 kg (approximately 31% of average male Chinese body weight).
    • Physiological responses and self-appraisal indicated increased exertion with higher loads and faster walking speeds.

    Conclusions:

    • The study provides evidence-based recommendations for load carriage during walking for healthy adult males, specifically within the context of Chinese body weight averages.
    • These findings can inform the design of occupational safety guidelines and physical training programs to mitigate risks associated with load carriage.
    • Further research could explore these parameters in different populations and under varied environmental conditions.