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10 results for “Measurement system validation”
Synchronously recorded gait kinematic data with Inertial Measurement Units and a photogrammetry system for a validation assessment
<h3>Description</h3> <p>A gait database of 32 healthy adult subjects was built , volunteers were between 20 and 63 y.o. (33.64 ± 12.44) and 71.88% were females. Every individual underwent a barefoot walking test recorded simultaneously with Inertial Measurement Units (IMUs) and the photogrammetry system Vicon. The dataset contains the kinematic gait information of the hip, knee, and ankle joints in the three planes of motion: sagittal, frontal, and transversal. </p> <p>The signals recorded by the IMUs are referred to as I(t) and were captured with a sampling frequency of 50 Hz, and those recorded by the photogrammetry system are called V(t) and were captured with a sampling frequency of 100 Hz. To perform a comparative study of both systems, the V(t) signals must be resampled to 50 Hz. Then, the delay between the two signals must be corrected to align them. Finally, gait cycles can be extracted for each pair of trials following the data information provided, obtaining a pair of waveforms for each gait cycle [I(t), V(t)]. A total of 268 synchronous gait cycles [I(t), V(t)] can be recovered and analyzed in the three planes of motion per limb.</p> <h3>Data information</h3> <ul> <li><em>raw_data</em>: folder containing the 32 subjects raw kinematic signals recorded with IMUs (sampling frequency 50 Hz) and photogrammetry system (sampling frequency 100 Hz) synchronously.<br> <ul> <li>For IMUs records: <ul> <li>Z: sagittal plane.</li> <li>X: frontal plane.</li> <li>Y: transversal plane.</li> </ul> </li> <li>For photogrammetry system records: <ul> <li>X: sagittal plane.</li> <li>Y: frontal plane.</li> <li>Z: transversal plane.</li> </ul> </li> </ul> </li> </ul> <ul> <li><em>captures_information.xlsx</em>: table containing the delay correction and the samples corresponding to the events of the gait cycles. The delay correction is the number of samples for which each photogrammetry signal V(t), after being resampled to 50 Hz, must be moved to be completely aligned with its synchronous IMUs signal couple I(t). <ul> <li>If the delay is positive (+) the V(t) signal must be delayed by adding zeros at the beginning.</li> <li>If the delay is negative (-) the V(t) signal must be moved forward by removing zeros at the beginning.</li> </ul> </li> </ul>
A Validation Study of a New System for Measuring the End Expiratory Lung Volume During Mechanical Ventilation
ClinicalTrials.gov study NCT00405002. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Validity Test of Wearable Continuous Blood Pressure Measuring System
ClinicalTrials.gov study NCT04261062. IPD Sharing: NO. Countries: 1. Publications: 6.
Validation of Patient E-tool to Measure Systemic Lupus Activity
ClinicalTrials.gov study NCT05763225. IPD Sharing: UNDECIDED. Countries: 3. Publications: 20.
Determining the Reliability and Validity of a New Method for Measuring Upper Extremity Joint Range of Motion in Burn Patients Using a Tracking System
ClinicalTrials.gov study NCT05881876. IPD Sharing: NO. Countries: 0. Publications: 2.
Validation of Stroke Volume Measurement by a New Noninvasive Hemodynamic Monitoring System (NexFin)in Comparison to Different Invasive Procedures as Picco2, FloTrac and TEE
ClinicalTrials.gov study NCT01263990. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Validation Study for an Unobtrusive Online Sleep Measurement System
ClinicalTrials.gov study NCT01633151. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Validation of the Smart Mask V1 System and Its Measurements of SpO2 and Pulse Rate
ClinicalTrials.gov study NCT07086742. IPD Sharing: NO. Countries: 1. Publications: 0.
Validation and Feasibility in Clinical Practice and Concordance of an Automated System Coupling an RGB-D Camera and a Software Based on Artificial Intelligence for the Measurement of Shoulder Range of
ClinicalTrials.gov study NCT05292157. IPD Sharing: NO. Countries: 1. Publications: 0.
System for Measuring Non-invasive Blood Flow in the Tracheobronchial Mucosa: Validation of Reproducibility
ClinicalTrials.gov study NCT01402752. IPD Sharing: Not stated. Countries: 0. Publications: 0.
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