Speed and Rhythm Affect Temporal Structure of Variability in Reaching Poststroke: A Pilot Study.
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| Title: | Speed and Rhythm Affect Temporal Structure of Variability in Reaching Poststroke: A Pilot Study. |
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| Authors: | Sethi, Amit (AUTHOR), Stergiou, Nick (AUTHOR), Patterson, Tara S. (AUTHOR), Patten, Carolynn (AUTHOR), Richards, Lorie G. (AUTHOR) |
| Source: | Journal of Motor Behavior. Jan-Feb2017, Vol. 49 Issue 1, p35-45. 11p. 1 Diagram, 2 Charts, 2 Graphs. |
| Subjects: | Stroke patients, Arm physiology, Motor ability, Neurorehabilitation, Shoulder physiology, Arm, Kinematics, Physics, Research funding, Stroke, Pilot projects, Body movement, Case-control method, Physiology |
| Abstract: | Temporal structure reveals the potential adaptive strategies employed during upper extremity movements. The authors compared the temporal structure of upper extremity joints under 3 different reaching conditions: preferred speed, fast speed, and reaching with rhythmic auditory cues in 10 individuals poststroke. They also investigated the temporal structure of these 3 reaching conditions in 8 healthy controls to aid in the interpretation of the observed patterns in the poststroke cohort. Approximate entropy (ApEn) was used to measure the temporal structure of the upper extremity joints. ApEn was similar between conditions in controls. After stroke, ApEn was significantly higher for shoulder, elbow, and wrist both at fast speed and with rhythmic cues compared with preferred speed. ApEn at index finger was significantly higher only with rhythmic cues compared with preferred speed. The authors propose that practice reaching at faster speed and with rhythmic cues as a component of rehabilitation interventions may enhance adaptability after stroke. [ABSTRACT FROM PUBLISHER] |
| Copyright of Journal of Motor Behavior is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | Temporal structure reveals the potential adaptive strategies employed during upper extremity movements. The authors compared the temporal structure of upper extremity joints under 3 different reaching conditions: preferred speed, fast speed, and reaching with rhythmic auditory cues in 10 individuals poststroke. They also investigated the temporal structure of these 3 reaching conditions in 8 healthy controls to aid in the interpretation of the observed patterns in the poststroke cohort. Approximate entropy (ApEn) was used to measure the temporal structure of the upper extremity joints. ApEn was similar between conditions in controls. After stroke, ApEn was significantly higher for shoulder, elbow, and wrist both at fast speed and with rhythmic cues compared with preferred speed. ApEn at index finger was significantly higher only with rhythmic cues compared with preferred speed. The authors propose that practice reaching at faster speed and with rhythmic cues as a component of rehabilitation interventions may enhance adaptability after stroke. [ABSTRACT FROM PUBLISHER] |
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| ISSN: | 00222895 |
| DOI: | 10.1080/00222895.2016.1219304 |
