Real-time kinematic biofeedback improves scapulothoracic control and performance during scapular-focused exercises: A single-blind randomized controlled laboratory study.
Emerging evidence suggests that scapular-focused therapeutic exercises hold promise for shoulder dynamic stability retraining. While recent findings show that therapeutic exercises can alter scapular neuromuscular function measured with muscle electromyography, no study has yet addressed the effects of kinematic biofeedback for improving scapulothoracic control and performance. The aim of this study was to assess the effectiveness of kinematic biofeedback on motor relearning transfer during shoulder flexion and a daily activity, on the quality of scapular-focused exercise performance, and on execution time. Thirty healthy young adults were randomly distributed into two groups. Skin mounted electromagnetic sensors were used to collect kinematic data of the thorax, scapula and humerus while subjects performed a shoulder flexion and a daily activity, prior to and after scapular-focused exercises. For both groups, the exercise execution error and the execution time determined the scapulothoracic control and performance. Significant statistical differences were found in the exercise execution error results within the experimental group (z=5.313; p=0.037) and between groups (u=37.00; p=0.001; u=64.00; p=0.024). This study's results demonstrate that real-time kinematic biofeedback improves scapulothoracic control and performance during scapular-focused exercise execution.
Escola Superior de Saúde, Instituto Politécnico de Setúbal. Campus do Instituto Politécnico de Setúbal, Estefanilha, Edifício ESCE, 2914-503 Setúbal, Portugal. Electronic address: ana.n.antunes@gmail.com.
Ana
A
Antunes
Universidade de Lisboa, Faculdade de Motricidade Humana, Neuromechanics Research Group - Interdisciplinary Centre for the Study of Human Performance (CIPER), LBMF, Estrada da Costa, 1499-002 Cruz Quebrada, Dafundo, Lisboa, Portugal. Electronic address: fcarnide@fmh.ulisboa.pt.
Filomena
F
Carnide
Escola Superior de Saúde, Instituto Politécnico de Setúbal. Campus do Instituto Politécnico de Setúbal, Estefanilha, Edifício ESCE, 2914-503 Setúbal, Portugal; Universidade de Lisboa, Faculdade de Motricidade Humana, Neuromechanics Research Group - Interdisciplinary Centre for the Study of Human Performance (CIPER), LBMF, Estrada da Costa, 1499-002 Cruz Quebrada, Dafundo, Lisboa, Portugal. Electronic address: ricardo.matias@ess.ips.pt.
Ricardo
R
Matias
D001696:Biomechanical Phenomena; D004576:Electromyography; D015444:Exercise / Q000502:physiology*; D030141:Feedback, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D006811:Humerus / Q000033:anatomy & histology / Q000502:physiology; D008297:Male; D011597:Psychomotor Performance / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology; D012540:Scapula / Q000033:anatomy & histology / Q000502:physiology*; D012782:Shoulder / Q000033:anatomy & histology / Q000502:physiology; D016037:Single-Blind Method; D013909:Thorax / Q000033:anatomy & histology / Q000502:physiology*; D055815:Young Adult
Dynamic stability; Feedback; Kinematics analysis; Rehabilitation; Shoulder