Examinando por Autor "Chiu, Chiayu (Directora de tesis)"

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    The acute effects of inhibitory kinesio taping on sensorimotor integration at the shoulder girdle in healthy subjects
    (Universidad de Valparaíso, 2023) Figueroa Cortés, Raúl; Chiu, Chiayu (Directora de tesis)
    Objective: To investigate the acute effects of inhibitory Kinesio taping (iKT) on shoulder proprioception, activity of scapular stabilizer muscles, and scapular kinematics in healthy young adults. Methods: A quasi-experimental repeated measures study was conducted. Twenty-two healthy volunteers were recruited. Surface electromyography and an optical motion capture system were synchronized to record the activity of scapular stabilizer muscles and scapulohumeral kinematics during shoulder proprioceptive tasks without visual feedback. Volunteers were treated with Kinesio taping applied at 25 percent of its maximum stretchability on their dominant upper trapezius muscle. Participants performed five active shoulder repositioning tasks at 100° in both frontal and scapular planes. The measurements were repeated without iKT applied. Results: Generalized linear mixed effects model revealed a statistically significant main effect of iKT on scapular posterior tilt during arm abduction at 100° (p < 0.05). Tukey (HSD) pairwise comparisons showed a significant increase of scapular posterior tilt in the iKT condition compared to no-tape in the frontal plane (p < 0.05). Finally, no statistically significant main effects of the treatment, the plane of motion, nor factors interaction on shoulder repositioning absolute error nor the activity ratio of the lower trapezius as scapular stabilizer were observed. Conclusion: The results suggest that iKT modulated sensorimotor integration at the shoulder girdle reflected in a significant increase in posterior scapular tilt and showed a trend to increase both the activity ratio of the lower trapezius as a scapular stabilizer and shoulder repositioning absolute error during arm abduction at 100°. This finding may have clinical meaning since posterior tilting of the scapula increases the subacromial space increases, where a reduced subacromial space contributes to an increase in the risk of injury of the rotator cuff tendon during over-shoulder arm raising in the frontal plane.