Rodent Gait Analysis via Multidimensional Coordinate Mapping

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Solution Overview

Problem

Current gait analysis techniques fail to accurately address the interdependency of gait variables in rodents, leading to inconsistent and unreliable results in animal research, as they treat independent measures as separate entities when they are interconnected.

Innovation Solution

A multidimensional analysis approach that captures and translates gait data into a coordinate frame specific to each animal, accounting for the interplay between spatial and temporal movements of all limbs, allowing for a holistic view of locomotion that minimizes the confounding effect of interdependent variables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional independent variable analysis is used, then analysis simplicity is improved, but measurement precision deteriorates due to ignoring interdependency of gait variables

Engineering Contradiction:
Improveanalysis simplicityVSAvoidgait analysis accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments the gait analysis into distinct phases (stance phase, swing phase) and components (spatial parameters, temporal parameters), allowing independent analysis of each segment while maintaining awareness of their interrelationships through coordinated reporting

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds a new dimension to gait analysis by incorporating interdependency analysis that examines relationships between variables. This is achieved through coordinated reporting that shows how variables change together, moving beyond traditional single-dimensional independent variable analysis to a multi-dimensional framework that captures the coordinated nature of gait parameters

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If multiple gait variables are analyzed independently, then device complexity is reduced, but reliability deteriorates due to confounding effects

Engineering Contradiction:
Improveanalysis system complexityVSAvoidresearch reproducibility
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system segments gait variables into organized groups (spatial, temporal, phase-specific) that can be analyzed and reported separately, reducing the apparent complexity while maintaining the integrity of interrelationships through structured coordinated reporting

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary framework of coordinated reporting that mediates between simple independent variable analysis and complex interdependent analysis. This intermediary layer organizes variables into phases and components, showing relationships without requiring complex mathematical modeling, thus improving reliability while keeping the system manageable

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If comprehensive gait data is captured, then measurement precision is improved, but loss of information increases due to interdependency confounds

Engineering Contradiction:
Improvegait variable measurementVSAvoidinterpretability of results
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent segments comprehensive gait data into organized phases (stance, swing) and parameter types (spatial, temporal), making the data more interpretable by presenting it in a structured format that highlights meaningful patterns while reducing the confusion from interdependency

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transforms the presentation of comprehensive gait data by adding a dimensional organization based on gait phases and parameter categories. This reorganization maintains all the measurement precision of comprehensive data while improving interpretability through a structured framework that shows how variables relate across different phases of the gait cycle

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11373452B2Multidimensional analysis of gait in rodent
Publication Date: 2022.06.28 GEORGETOWN UNIV
  • US11373452B2 patent drawing
  • US11373452B2 patent drawing
  • US11373452B2 patent drawing

AI summary

Embodiments of the present systems and methods may provide techniques for analyzing rodent gait that addresses the confound of interdependency of gait variables to provide more accurate and reproducible results. In embodiments, multidimensional analysis of gait in animals, such as rodents, may be performed. For example, in an embodiment, a computer-implemented method of animal gait analysis may comprise capturing data relating to steps taken a plurality of animal test subjects, performing a multidimensional analysis of the captured data to generate data describing a gait of the animal test subjects, and outputting data characterizing the gait of the animal test subjects.