Related Experiment Video
Updated: Feb 3, 2026
07:05
Author Spotlight: Exploring the Relationship Between Lipotoxicity and HFpEF
Published on: February 23, 2024
3.8K
A Force-Sensing Insole to Quantify Impact Loading to the Foot.
Ishan Acharya1, John T Van Tuyl1, Julia de Lange2
1Department of Mechanical Engineering,McMaster University,1280 Main Street West,Hamilton, ON L8S 4L7, Canada.
Journal of Biomechanical Engineering
|November 2, 2018
Summary
A novel instrumented insole accurately measures lower leg impact forces in car crashes. This tool aids in developing better vehicle safety systems and injury criteria for foot and ankle protection.
Area of Science:
- Biomechanics
- Automotive Safety Engineering
Background:
- Lower leg injuries are common in frontal car collisions, leading to significant disability.
- Current methods using anthropomorphic test devices (ATDs) have limitations due to differences in leg compliance and footwear effects.
Purpose of the Study:
- To develop a novel instrumented insole for accurate lower leg and foot injury risk assessment in vehicle collisions.
- To improve vehicle safety testing and the development of injury criteria.
Main Methods:
- Developed and calibrated an instrumented insole with piezoresistive sensors using a pneumatic impacting apparatus.
- Tested the insole in a boot and compared its measurements to ATD ankle and toe load cells.
Main Results:
- The instrumented insole demonstrated an average error of 10% compared to ATD load cells.
- The sensors provided insights into force distribution across the foot during impact.
Conclusions:
- The instrumented insole is a viable tool for assessing lower leg and foot impact forces in automotive collisions.
- This technology can contribute to developing more accurate regional injury criteria for enhanced vehicle safety.
Keywords:
anthropomorphic test device (ATD)foot/ankle injuryimpactinjury assessmentinstrumented bootlower legpiezoresistive sensorsMore Related Videos
Related Concept Videos
01:19Impact Loading
699
Impact loading occurs when a moving object collides with a stationary structure, such as a rod with a uniform cross-sectional area fixed at one end. Under these conditions, the rod absorbs the kinetic energy from the striking object, leading to deformation and subsequent stress development. As the rod returns to its original position and reaches maximum stress, the absorbed energy, initially manifested as kinetic energy, transforms entirely into strain energy.
In cases of elastic deformation,...
In cases of elastic deformation,...
699
01:13Impact Loading on a Cantilever Beam
894
The analysis of a cantilever beam with a circular cross-section subjected to impact loading at its free end illustrates the conversion of potential energy from a dropped object into kinetic energy, which is then absorbed by the beam as strain energy. This process is crucial for understanding how materials behave under dynamic loads, which is important in fields such as construction and aerospace.
When an object is dropped onto the free end of a cantilever, its potential energy due to gravity is...
When an object is dropped onto the free end of a cantilever, its potential energy due to gravity is...
894
02:30Quantifying Work
24.4K
As a system undergoes a change, its internal energy can change, and energy can be transferred from the system to the surroundings, or from the surroundings to the system.
24.4K
01:28Muscles of the Leg that Move the Foot and Toes
4.1K
The human leg comprises an intricate system of muscles that facilitate the movement of feet and toes. Within this system, the muscles are categorized into the anterior, lateral, and posterior compartments, each with a unique set of muscles carrying out specific functions.
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
Anterior Compartment
The anterior compartment includes muscles that contribute to the dorsiflexion of the foot. This compartment houses the tibialis anterior, extensor hallucis longus, and extensor digitorum longus muscles....
4.1K
02:57The Sense of Self: Reflected Self-Appraisal and Social Comparison
56.1K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
56.1K
01:19Impact of Groups on Groups
249
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
249