Descriptive analysis of 3D foot motion using inertial sensors. Comparison between lower extremities

Restoy, Juan Luis Florenciano; Solé-Casals, Jordi; Boix, Xantal Borrs

doi:10.20986/revesppod.2021.1594/2020

Cited by 1 publication

(7 citation statements)

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“…The amplitude of the angular velocity of the D-PF is greater than for IN-EV and ABD-ADD. As indicated by Florenciano et al [13], angular displacement in the D-PF axis is notably greater, facilitating a more significant increase in velocity within this specific motion axis.…”

Section: Description Of the Velocity Curvesmentioning

confidence: 76%

“…The minimum angular velocity (negative values) of plantar flexion, inversion, and abduction occurs between 10% and 30%. At 30%, the stationary phase of the foot ends and the heel rise begins [13]. This produces an increment in the angular velocity, with the maximum angular velocity observed between 30% and 40%.…”

Section: Description Of Velocity Curvesmentioning

confidence: 99%

“…Using the sagittal plane movement (D-PF) as a reference, we determined the running stride, defined between the maximum and minimum D-PF points (Figure 2). These instants are taken as a reference to determine the stride in the frontal and transverse planes, as well as to extract the number of strides (N) of each subject, as conducted in Florenciano et al [9,13].…”

Section: Data Processing and Analysismentioning

confidence: 99%

“…This study was able to describe the angular velocity curves on the three axes of motion (Figure 3). Other articles have described the angular displacement [13] but not the angular velocity. The amplitude of the angular velocity of the D-PF is greater than for IN-EV and ABD-ADD.…”

Section: Description Of the Velocity Curvesmentioning

confidence: 99%

“…Advancements in IMU technology have made these devices smaller, lighter, and more affordable, rendering them suitable for sports motion analysis. High-sampling-rate IMUs have been used for research purposes [4,6,7,[10][11][12], but podiatrists often work with IMUs that are affordable yet have sufficient functionality to assist in the final diagnosis; thus, they often use devices with low capture frequencies [5,8,9,13,14]. Studies have shown that a frequency of 12 Hz is sufficient to capture human body movement across different devices [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Foot Orthoses on Angular Velocity of Feet

Florenciano Restoy,

Solé-Casals,

Borràs-Boix

2023

Sensors

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There is some uncertainty regarding how foot orthoses (FO) affect the biomechanics of the lower extremities during running in non-injured individuals. This study aims to describe the behavior of the angular velocity of the foot in the stride cycle measured with a low-sampling-rate IMU device commonly used by podiatrists. Specific objectives were to determine if there are differences in angular velocity between the right and left foot and to determine the effect of foot orthoses (FO) on the 3D angular velocity of the foot during running. The sample was composed of 40 male adults (age: 43.0 ± 13.8 years, weight: 72.0 ± 5.5 kg, and height: 175.5 ± 7.0 cm), who were healthy and without any locomotor system alterations at the time of the test. All subjects use FO on a regular basis. The results show that there are significant differences in the transverse plane between feet, with greater differences in the right foot. Significant differences between FO and non-FO conditions were observed in the frontal and transverse planes on the left foot and in the sagittal and transverse planes on the right foot. FO decreases the velocity of the foot in dorsi-plantar flexion and abduction and increases the velocity in inversion. The kinematic changes in foot velocity occur between 30% and 60% of the complete cycle, and the FO reduces the velocity in abduction and dorsi–plantar flexion and increases the velocity in inversion–eversion, which facilitates the transition to the oscillating leg and with it the displacement of the center of mass. Quantifying possible asymmetries and assessing the effect of foot orthoses may aid in improving running mechanics and preventing injuries in individuals.

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Section: Description Of the Velocity Curvesmentioning

confidence: 76%

Section: Description Of Velocity Curvesmentioning

confidence: 99%

Section: Data Processing and Analysismentioning

confidence: 99%

Section: Description Of the Velocity Curvesmentioning

confidence: 99%