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Load along a Single Axis01:29

Load along a Single Axis

In structural engineering, the analysis of beams subjected to varying loads is a critical aspect of understanding the behavior and performance of these structural elements. A common scenario involves a beam subjected to a combination of different load distributions.
Consider a beam of length L subjected to a varying load, which is a combination of parabolic and trapezoidal load distribution along the x-axis. In this case, it is essential to determine the resultant loads, their locations, and...

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Related Experiment Video

Updated: Jun 13, 2026

Comprehensive Understanding of Inactivity-Induced Gait Alteration in Rodents
04:37

Comprehensive Understanding of Inactivity-Induced Gait Alteration in Rodents

Published on: July 6, 2022

Relationship among gait parameters while walking with varying loads.

Tomohiro Demur1, Shin-ichi Demura

  • 1Graduate School of Natural Science & Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan. tomodemu@ed.kanazawa-u.ac.jp

Journal of Physiological Anthropology
|May 11, 2010
PubMed
Summary

Carrying loads significantly alters walking patterns, affecting speed, cadence, and stance. These gait changes, including altered relationships between parameters, likely help maintain stability under different body mass loads.

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Area of Science:

  • Biomechanics
  • Human locomotion

Background:

  • Understanding how external loads affect human gait is crucial for fields like ergonomics and sports science.
  • Previous research indicates gait modifications occur with increased load, but detailed parameter interrelationships require further investigation.

Purpose of the Study:

  • To investigate the impact of varying body mass (BM) loads on gait parameters in healthy young adults.
  • To clarify the relationships between different gait parameters under different loading conditions.

Main Methods:

  • Fifteen healthy young males walked with loads of 0%, 20%, 40%, and 60% of their body mass.
  • Gait parameters including walking speed, cadence, stance time, swing time, double support time, step length, step width, walking angle, and toe angle were measured.

Main Results:

  • Significant changes in walking speed, cadence, stance time, and double support time were observed with increasing loads.
  • Correlations between walking speed and swing time/walking angle, and between swing time and double support time varied with load.
  • Specific relationships between walking speed and step length emerged at higher loads (40% and 60% BM).

Conclusions:

  • External loads significantly alter gait parameters and their interrelationships.
  • The observed gait modifications suggest an adaptive mechanism to maintain postural stability during loaded walking.
  • These findings have implications for understanding human physical performance and designing load-carrying equipment.