Abstract
Post hemiparetic stroke an individual may face difficulty performing bimanual tasks due to an asymmetry in their arms' strengths. Here, we determined whether participants with a strength asymmetry were impaired bi-directionally when matching torques between arms (i.e., paretic arm matches non-paretic arm, non-paretic arm matches paretic arm). Six participants with chronic hemiparetic stroke and four participants without neurological impairments partook in this study. First, we identified the maximum voluntary torque that participants could generate about each elbow joint (τmvt). Then, we determined how accurately and precisely participants could match, bidirectionally, submaximal isometric flexion torques (0.25 · τMVT:Reference) between arms. Results demonstrate that task directionality impacted the ability of our participants with stroke who had a strength asymmetry to match torques between arms; specifically, participants were unimpaired matching to a referenced non-paretic arm yet impaired in the opposite direction. Additionally, results reveal that the degree to which participants overshot the target torque when matching with their non-paretic arm could be predicted based on their strength asymmetry (R2 Adjusted = 0.67). We propose that individuals with stroke may avoid torque matching impairments during bimanual tasks by matching their paretic arm to their non-paretic arm.
Original language | English |
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Title of host publication | Proceedings 2017 International Conference on Rehabilitation Robotics (ICORR 2017) |
Place of Publication | Piscataway, NJ, USA |
Publisher | IEEE |
Pages | 714-719 |
ISBN (Electronic) | 9781538622964 |
DOIs | |
Publication status | Published - 2017 |
Externally published | Yes |
Event | 2017 IEEE 15th International Conference on Rehabilitation Robotics (ICORR 2017) - London, United Kingdom Duration: 17 Jul 2017 → 20 Jul 2017 Conference number: 15 |
Conference
Conference | 2017 IEEE 15th International Conference on Rehabilitation Robotics (ICORR 2017) |
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Abbreviated title | ICORR 2017 |
Country/Territory | United Kingdom |
City | London |
Period | 17/07/17 → 20/07/17 |
Keywords
- Torque
- Elbow
- Testing
- Visualization
- Atmospheric measurements
- Particle measurements
- Monitoring