TY - JOUR
T1 - Concurrent continuous versus bandwidth visual feedback with varying body representation for the 2-legged squat exercise
AU - Sanford, Sean
AU - Liu, Mingxiao
AU - Nataraj, Raviraj
N1 - Publisher Copyright:
© 2021 Human Kinetics, Inc.
PY - 2021/7
Y1 - 2021/7
N2 - Context: Continuous visual feedback (VF) can improve abilities to achieve desired movements and maximize rehabilitation outcomes by displaying actual versus target body positions in real time. Bandwidth VF reduces the reliance on feedback by displaying movement cues only when performance errors exceed specified thresholds. As such, bandwidth VF may better train independent movement abilities through greater development of intrinsic body control. In this study, continuous and bandwidth VF were investigated across modes of display (abstract and representative) that differed in body-discernibility. Objective: To compare the performance of the 2-legged squat during training with concurrent feedback (real-time VF) and short-term retention (immediately after training, VF removed). Design: Cross-sectional. Setting: University research laboratory. Participants: Eighteen healthy individuals. Methods: Marker-based motion capture displayed real-time position. Main Outcome Measures: Four VF cases (continuous–abstract, bandwidth–abstract, continuous–representative, and bandwidth–representative) were evaluated for accuracy and consistency to a target trajectory and target depth. Results: During training, both continuous VF cases showed significantly (P < .05) higher accuracy and consistency to the target trajectory compared with both bandwidth VF cases. Bandwidth VF resulted in greater potential learning (retention performance relative to a training baseline) compared with continuous–abstract. Conclusions: Continuous–representative may offer unique performance benefits in both training and retention of multisegment movement tasks. Bandwidth VF showed greater potential for learning. For long-term learning, an optimal VF paradigm should consider continuous–representative with bandwidth features.
AB - Context: Continuous visual feedback (VF) can improve abilities to achieve desired movements and maximize rehabilitation outcomes by displaying actual versus target body positions in real time. Bandwidth VF reduces the reliance on feedback by displaying movement cues only when performance errors exceed specified thresholds. As such, bandwidth VF may better train independent movement abilities through greater development of intrinsic body control. In this study, continuous and bandwidth VF were investigated across modes of display (abstract and representative) that differed in body-discernibility. Objective: To compare the performance of the 2-legged squat during training with concurrent feedback (real-time VF) and short-term retention (immediately after training, VF removed). Design: Cross-sectional. Setting: University research laboratory. Participants: Eighteen healthy individuals. Methods: Marker-based motion capture displayed real-time position. Main Outcome Measures: Four VF cases (continuous–abstract, bandwidth–abstract, continuous–representative, and bandwidth–representative) were evaluated for accuracy and consistency to a target trajectory and target depth. Results: During training, both continuous VF cases showed significantly (P < .05) higher accuracy and consistency to the target trajectory compared with both bandwidth VF cases. Bandwidth VF resulted in greater potential learning (retention performance relative to a training baseline) compared with continuous–abstract. Conclusions: Continuous–representative may offer unique performance benefits in both training and retention of multisegment movement tasks. Bandwidth VF showed greater potential for learning. For long-term learning, an optimal VF paradigm should consider continuous–representative with bandwidth features.
KW - Movement
KW - Retention
KW - Sensory
KW - Training
UR - http://www.scopus.com/inward/record.url?scp=85109180529&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85109180529&partnerID=8YFLogxK
U2 - 10.1123/JSR.2020-0234
DO - 10.1123/JSR.2020-0234
M3 - Article
C2 - 33596545
AN - SCOPUS:85109180529
SN - 1056-6716
VL - 30
SP - 794
EP - 803
JO - Journal of Sport Rehabilitation
JF - Journal of Sport Rehabilitation
IS - 5
ER -