RT Journal Article
T1 Impact of Visual Biofeedback of Trunk Sway Smoothness on Motor Learning during Unipedal Stance
A1 Cruz-Montecinos, Carlos
A1 Cuesta-Vargas, Antonio
A1 Muñoz, Cristian
A1 Flores, Dante
A1 Ellsworth, Joseph
A1 De la Fuente, Carlos
A1 Calatayud, Joaquín
A1 Rivera-Lillo, Gonzalo
A1 Soto-Arellano, Verónica
A1 Tapia, Claudio
A1 García-Massó, Xavier
K1 Motor learning
K1 Biofeedback
K1 Postural balance
K1 Inertial measurement unit
K1 SmartPhone
K1 Biorretroalimentación psicológica
K1 Equilibrio postural
K1 Teléfono inteligente
AB The assessment of trunk sway smoothness using an accelerometer sensor embedded in a smartphone could be a biomarker for tracking motor learning. This study aimed to determine the reliability of trunk sway smoothness and the effect of visual biofeedback of sway smoothness on motor learning in healthy people during unipedal stance training using an iPhone 5 measurement system. In the first experiment, trunk sway smoothness in the reliability group (n = 11) was assessed on two days, separated by one week. In the second, the biofeedback group (n = 12) and no-biofeedback group (n = 12) were compared during 7 days of unipedal stance test training and one more day of retention (without biofeedback). The intraclass correlation coefficient score 0.98 (0.93-0.99) showed that this method has excellent test-retest reliability. Based on the power law of practice, the biofeedback group showed greater improvement during training days (p = 0.003). Two-way mixed analysis of variance indicates a significant difference between groups (p < 0.001) and between days (p < 0.001), as well as significant interaction (p < 0.001). Post hoc analysis shows better performance in the biofeedback group from training days 2 and 7, as well as on the retention day (p < 0.001). Motor learning objectification through visual biofeedback of trunk sway smoothness enhances postural control learning and is useful and reliable for assessing motor learning.
PB MDPI
YR 2020
FD 2020-05-01
LK http://hdl.handle.net/10668/3876
UL http://hdl.handle.net/10668/3876
LA en
NO Cruz-Montecinos C, Cuesta-Vargas A, Muñoz C, Flores D, Ellsworth J, De la Fuente C, et al. Impact of Visual Biofeedback of Trunk Sway Smoothness on Motor Learning during Unipedal Stance. Sensors. 2020 May 1;20(9):2585
DS RISalud
RD Apr 8, 2025