Accuracy Comparison: Optoelectronic Motion Capture and Markerless System

Active, not recruiting

• Conditions: Motor Disorders; Children, Adult
• Interventions: Other: Measure gait spatiotemporal parameters and kinematics from optoelectronic system; Other: Measure gait spatiotemporal parameters and kinematics from markerless system

• Registration Number: NCT06544824
• Lead Sponsor: IRCCS Eugenio Medea

Brief Summary

The purpose of this study was to assess the Openpose reliability to measure kinematics and spatiotemporal gait parameters and to evaluate the minimum technical requirements. This analysis used video and optoelectronic motion capture simultaneously recorded. We assessed more of 20 subject with different motor gait impairments

Detailed Description

Marker-based Optical motion tracking is the gold standard in gait analysis, but today, markerless solutions are growing rapidly. Treatment of physical impairments could improve if supported with reliable motion capture. Moreover, the use of markerless technology offers numerous advantages for working with pediatric populations under various conditions. In this paper, we assess the Openpose reliability to measure kinematics and spatiotemporal gait parameters and to evaluate the minimum technical requirements., in a population of children with and without gait impairments. Validating markerless methods can open the way for new motion capture techniques and enhance the accessibility of kinematic measurements and improve the treatment of physical impairments.

Study Timeline

• Study Start: 2024-05-15
• Status Verified: 2024-08
• Study First Submitted: 2024-08-05
• Study First Submitted QC: 2024-08-05
• Last Update Submitted: 2024-08-05
• Study First Posted: 2024-08-09
• Last Update Posted: 2024-08-09
• Primary Completion: 2025-05-15
• Study Completion: 2025-05-15

Recruitment & Eligibility

• Status: ACTIVE_NOT_RECRUITING
• Sex: All
• Target Recruitment: 25

Inclusion Criteria

• Age over 4 years;
• Ability to walk independently without walking aids and/or orthoses.

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Exclusion Criteria

• Inability to walk independently and safely for short distances without walking aids and/or orthoses.

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Healthy subjects	Measure gait spatiotemporal parameters and kinematics from optoelectronic system	This group includes healthy subjects over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Healthy subjects	Measure gait spatiotemporal parameters and kinematics from markerless system	This group includes healthy subjects over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Subjects with a diagnosis of cerebral palsy and right hemiplegia	Measure gait spatiotemporal parameters and kinematics from optoelectronic system	This group includes subjects with a diagnosis of cerebral palsy and right hemiplegia over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Subjects with a diagnosis of cerebral palsy and right hemiplegia	Measure gait spatiotemporal parameters and kinematics from markerless system	This group includes subjects with a diagnosis of cerebral palsy and right hemiplegia over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Subjects with a diagnosis of cerebral palsy and left hemiplegia	Measure gait spatiotemporal parameters and kinematics from optoelectronic system	This group includes subjects with a diagnosis of cerebral palsy and left hemiplegia over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Subjects with a diagnosis of cerebral palsy and left hemiplegia	Measure gait spatiotemporal parameters and kinematics from markerless system	This group includes subjects with a diagnosis of cerebral palsy and left hemiplegia over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Subjects with a diagnosis of spastic paraparesis	Measure gait spatiotemporal parameters and kinematics from optoelectronic system	TThis group includes subjects with a diagnosis of spastic paraparesis over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.
Subjects with a diagnosis of spastic paraparesis	Measure gait spatiotemporal parameters and kinematics from markerless system	TThis group includes subjects with a diagnosis of spastic paraparesis over 4 years of age; with the ability to walk independently without walking aids and/or orthoses.

Primary Outcome Measures

Name	Time	Method
Absolute Error	Through study completion, an average of 1 year	Absolute errors were calculated for the kinematics parameters and for each spatiotemporal variable by taking the absolute value after subtracting the values obtained using pose estimation methods from the value measured using markerbased motion capture
intraclass correlation coefficients	Through study completion, an average of 1 year	To confirm whether the data obtained by OpenPose agreed with the data from the optoelectronic system, investigators calculated the ICCs (two-way mixed effects model, absolute agreement, average measurements) between the spatiotemporal and kinematic data from both systems. The ICC values were interpreted as follows: poor agreement for ICC \< 0.5, moderate agreement for values between 0.5 and 0.75, good agreement for values between 0.75 and 0.9, and excellent agreement for values greater than 0.90.
cross-correlation coefficients	Through study completion, an average of 1 year	The cross-correlation coefficients (CCC) between both systems were used to evaluate the similarity of angles during the gait cycle. The CCC values were interpreted as follows: weak or no coupling for values between -0.3 and 0.3, moderate coupling for values between 0.3 and 0.7 or -0.7 and -0.3, and strong coupling for values greater than 0.7 or less than -0.7.

Trial Locations

Locations (1)

IRCCS E. Medea; 🇮🇹 Bosisio Parini, Italy