Journal
SENSORS
Volume 19, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/s19030657
Keywords
wearable sensors; electromyography signal; stroke; sit-to-stand; contraction of the muscles
Funding
- Tri-Service General Hospital - National Taiwan University of Science and Technology Joint Research Program [TSGH-C107-012, TSGH-NTUST-107-04, NTUST-TSGH-105-05]
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Electromyography (EMG) sensors have been used to study the sequence of muscle contractions during sit-to-stand (STS) in post-stroke patients. However, the majority of the studies used wired sensors with a limited number of placements. Using the latest improved wearable technology with 16 sensors, the current study was a thorough investigation to evaluate the contraction sequences of eight key muscles on the trunk and bilateral limbs during STS in post-stroke patients, as it became feasible. Multiple wearable sensors for the detection of muscle contraction sequences showed that the post-stroke patients performed STS with abnormal firing sequences, not only in the primary mover on the sagittal plane during raising, but also in the tibialis anterior, which may affect anticipatory postural adjustment in the gluteus medius, which may affect balance control. The abnormal tibialis anterior contraction until the early ascending phase and the delayed firing of the gluteus muscles highlight the importance of whole-kinetic-chain monitoring of contraction sequences using wearable sensors. The findings can be helpful for the design of therapeutic exercises.
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