TY - GEN
T1 - Towards Approximate Entropy Analysis of Center of Pressure Characteristics in Flatfoot Subjects
AU - Marouvo, Joel
AU - Azevedo, Nelson
AU - Sousa, Filipa
AU - Fernandes, Orlando
AU - Castro, Maria António
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.
PY - 2023
Y1 - 2023
N2 - With nonlinear methods, the Center of Pressure excursion analysis can be used to quantify the regularity, adaptability, and complexity of movement over time. These measures can quantify the regularity, adaptability, and complexity of movement. This study aims to analyze Center of Pressure differences between flatfoot and neutral foot subjects using Approximate Entropy analysis. The sample consisted of 31 participants (13 women/18 men; mean age 23.26 years ± standard deviation 4.43). Fifteen participants had bilateral flatfoot condition and the remaining 16 formed the control group with bilateral neutral foot condition. Before analyzing their posture, participants underwent screening using the Navicular Drop Test and Resting Calcaneal Stance Position test to characterize each group. Under both eyes-open and eyes-closed conditions, all participants performed bipedal weight-bearing stance analyses on a force platform. Subsequently, Approximate Entropy was calculated. The non-linear analysis revealed no statistically significant differences (p > 0.05). There were no significant differences observed in postural stability between individuals with and without flatfoot. Methodological variables should be addressed, and foot modifications specifically addressed to address existing methodological deficiencies.
AB - With nonlinear methods, the Center of Pressure excursion analysis can be used to quantify the regularity, adaptability, and complexity of movement over time. These measures can quantify the regularity, adaptability, and complexity of movement. This study aims to analyze Center of Pressure differences between flatfoot and neutral foot subjects using Approximate Entropy analysis. The sample consisted of 31 participants (13 women/18 men; mean age 23.26 years ± standard deviation 4.43). Fifteen participants had bilateral flatfoot condition and the remaining 16 formed the control group with bilateral neutral foot condition. Before analyzing their posture, participants underwent screening using the Navicular Drop Test and Resting Calcaneal Stance Position test to characterize each group. Under both eyes-open and eyes-closed conditions, all participants performed bipedal weight-bearing stance analyses on a force platform. Subsequently, Approximate Entropy was calculated. The non-linear analysis revealed no statistically significant differences (p > 0.05). There were no significant differences observed in postural stability between individuals with and without flatfoot. Methodological variables should be addressed, and foot modifications specifically addressed to address existing methodological deficiencies.
KW - Approximate entropy
KW - Postural stability
KW - Pronated foot
KW - Variability
UR - http://www.scopus.com/inward/record.url?scp=85187662255&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-47790-4_37
DO - 10.1007/978-3-031-47790-4_37
M3 - Conference contribution
AN - SCOPUS:85187662255
SN - 9783031477898
T3 - Lecture Notes in Bioengineering
SP - 391
EP - 398
BT - Proceedings of the 10th Congress of the Portuguese Society of Biomechanics, CNB 2023
A2 - Martins Amaro, Ana
A2 - Roseiro, Luis
A2 - Messias, Ana Lúcia
A2 - Gomes, Beatriz
A2 - Almeida, Henrique
A2 - António Castro, Maria
A2 - António Castro, Maria
A2 - Neto, Maria Augusta
A2 - de Fátima Paulino, Maria
A2 - Maranha, Vítor
PB - Springer Science and Business Media Deutschland GmbH
T2 - 10th Congress of the Portuguese Society of Biomechanics, CNB 2023
Y2 - 5 May 2023 through 6 May 2023
ER -