The purpose of this study is to study the effect mechanism of programmed flexor-extensor alternating electrical acupiont stimulation on upper limb functional reconstruction after stroke.
After being informed about the study and potential risks, all patients who meet the inclusion criteria, after signing the informed consent, will be randamized divided into two groups in a blind manner. The patients will undergo a 3-week treatment (6 days per week and 1 day for rest, a total of 18 days of treatment). Those in the control group are treated with conventional flexor-extensor alternating electrical acupiont stimulation, and in the treatment group, programmed stimulation will be adopted (30 minutes, once a day). Besides, data from healthy participants will be collected and processed for reference and control purposes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
84
Conventional electrical stimulation does not produce coordinated movement of multiple joints by stimulating several locally generated single ones simultaneously. The stimulation after the improved program, through different time output electrical stimulation on different parts of the muscles or muscle groups, forming the programmed motion. The purpose of this study is to achieve the rehabilitation goal of single joint - multiple joint - extensive movement, promote the coordination recovery of affected limb movement and relieve muscle fatigue.
In this study, the instrument of alternate acupoint electrical stimulation of flexor and extensor muscles combines traditional acupoint therapy with modern low-frequency electric stimulation technology, has the advantages of non-invasive and convenient application, and has a good effect on improving the range of motion of joints, relieving spasm, enhancing muscle strength, promoting the recovery of the central nervous system and other aspects.
The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine
Harbin, Heilongjiang, China
EEG data record
To record the immediate Alpha, Beta, Delta and Theta bands of the eyes-closed resting state EEG of patients in the two groups 2 hours before the first treatment. The EmotivEpoc wireless portable EEG device (developed by Neurotechnology Company, USA) is used to collect EEG data.
Time frame: 2 hours before the first treatment
EEG data record
To record the immediate Alpha, Beta, Delta and Theta bands of the eyes-closed resting state EEG of patients in the two groups 2 hours after the first treatment. The EmotivEpoc wireless portable EEG device (developed by Neurotechnology Company, USA) is used to collect EEG data.
Time frame: 2 hours after the first treatment
EEG data record
To record the immediate Alpha, Beta, Delta and Theta bands of the eyes-closed resting state EEG of patients in the two groups 2 hours before the last treatment. The EmotivEpoc wireless portable EEG device (developed by Neurotechnology Company, USA) is used to collect EEG data.
Time frame: 2 hours before the last treatment
EEG data record
To record the immediate Alpha, Beta, Delta and Theta bands of the eyes-closed resting state EEG of patients in the two groups 2 hours after the last treatment. The EmotivEpoc wireless portable EEG device (developed by Neurotechnology Company, USA) is used to collect EEG data.
Time frame: 2 hours after the last treatment
EEG power spectrum analysis
EEG power spectrum analysis: EEG data of the four time points as above are preprocessed on the MATLAB platform. And the analysis is used to objectively evaluate the immediate and cumulative effects of different treatment therapies on cerebral cortex activity by Alpha, Beta, Delta and Theta frequency bands.
Time frame: 1 week after all the EEG data is collected
sEMG data record
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Ask the patients to do the "reaching and retriving" gross movement, recording the real-time sEMG data of RMS (root mean square) and MF (median frequency) 1 hour before the first treatment. sEMG cosynergive-coherence analysis: The signals are collected with the sEMG device (H4A2L8), developed by ThoughtTechnology Ltd, Canada. Datas are respectively collected of the biceps brachii and triceps brachii muscles during the whole process of the motion. Computer software calculates iEMG (integral electromyogram) and MPF (mean power frequency) values.
Time frame: 1 hour before the first treatment
sEMG data record
Ask the patients to do the "reaching and retriving" gross movement, recording the real-time sEMG data of RMS and MF 1 hour after the first treatment. sEMG cosynergive-coherence analysis: The signals are collected with the sEMG device (H4A2L8), developed by ThoughtTechnology Ltd, Canada. Datas are respectively collected of the biceps brachii and triceps brachii muscles during the whole process of the motion. Computer software calculates iEMG and MPF values.
Time frame: 1 hour after the first treatment
sEMG data record
Ask the patients to do the "reaching and retriving" gross movement, recording the real-time sEMG data of RMS and MF 1 hour before the last treatment. sEMG cosynergive-coherence analysis: The signals are collected with the sEMG device (H4A2L8), developed by ThoughtTechnology Ltd, Canada. Datas are respectively collected of the biceps brachii and triceps brachii muscles during the whole process of the motion. Computer software calculates iEMG and MPF values.
Time frame: 1 hour before the last treatment
sEMG data record
Ask the patients to do the "reaching and retriving" gross movement, recording the real-time sEMG data of RMS and MF 1 hour after the last treatment. sEMG cosynergive-coherence analysis: The signals are collected with the sEMG device (H4A2L8), developed by ThoughtTechnology Ltd, Canada. Datas are respectively collected of the biceps brachii and triceps brachii muscles during the whole process of the motion. Computer software calculates iEMG and MPF values.
Time frame: 1 hour after the last treatment
sEMG coherence analysis
sEMG coherence analysis: Local mean decomposition (LMD) de-noising methods and non-negative matrix decomposition algorithm are used and cosynergive-coherence analysis of the muscle pairs participating in the programmed motion is analyzed, to study the effects of different electrical stimulation methods on the motor coordination and the central control mechanism.
Time frame: 1 week after all the sEMG data is collected
Scale evaluation--MBI
MBI (Modified Barthel Index): A daily functional activity assessment. Normal (100 points). Each activity is rated on a scale of 5 (5 points), with a minimum of 1 (full dependence) and a maximum of 5 (full independence). The higher the level, the more independent the activity is. MBI score of upper limb is evaluated and SPSS26.0 statistical software is used for analysis. A two-sided test is used in this study, and the significance level is p\<0.05. Parametric method is used when data conditions meet parametric conditions; non-parametric method is used when data conditions do not meet time parameter conditions.
Time frame: 3 hours before the whole clinical trail
Scale evaluation--MBI
The same as above.
Time frame: 3 hours after the whole clinical trail
Scale evaluation--CSS
CSS (China Stroke Scale): A neurological deficits assessment. Normal (45 points), Upper limb normal (12 points). Each activity of upper limb is rated on a scale of 7 (0\~6 points). The lower the score, the better the situation is. CSS score of upper limb is evaluated and SPSS26.0 statistical software is used for analysis. A two-sided test is used in this study, and the significance level is P\<0.05. Parametric method is used when data conditions meet parametric conditions; non-parametric method is used when data conditions do not meet time parameter conditions.
Time frame: 3 hours before the whole clinical trail
Scale evaluation--CSS
The same as above.
Time frame: 3 hours after the whole clinical trail
Scale evaluation--FMA
FMA (Fugl-Meyer Assessment): A motor function assessment. Normal (226 points), Upper limb normal (66 points, 33 items). The high the score, the better the situation is. FMA scale of upper limb is evaluated and SPSS26.0 statistical software is used for analysis. A two-sided test is used in this study, and the significance level is P\<0.05. Parametric method is used when data conditions meet parametric conditions; non-parametric method is used when data conditions do not meet time parameter conditions.
Time frame: 3 hours before the whole clinical trail
Scale evaluation--FMA
The same as above.
Time frame: 3 hours after the whole clinical trail
Scale evaluation--MMT
MMT (Manual Muscle Testing): A muscle strength assessment. Normal (level 5) with a minimum of 0 (no muscle contraction) and a maximum of 5 (normal, can resist gravity and sufficient resistance). The higher the score, the more normal muscle strength tends to be. FMA scale of upper limb is evaluated and SPSS26.0 statistical software is used for analysis. A two-sided test is used in this study, and the significance level is P\<0.05. Parametric method is used when data conditions meet parametric conditions; non-parametric method is used when data conditions do not meet time parameter conditions.
Time frame: 3 hours before the whole clinical trail
Scale evaluation--MMT
The same as above.
Time frame: 3 hours after the whole clinical trail
Scale evaluation--Brunnstrom
Brunnstrom motor function assessment: A limb function recovery assessment. Normal (level 6) with a minimum of 1 (no movement) and a maximum of 6 (basiclly normal). The higher the level, the better recovery is. Brunnstrom scale of upper limb is evaluated and SPSS26.0 statistical software is used for analysis. A two-sided test is used in this study, and the significance level is P\<0.05. Parametric method is used when data conditions meet parametric conditions; non-parametric method is used when data conditions do not meet time parameter conditions.
Time frame: 3 hours before the whole clinical trail
Scale evaluation--Brunnstrom
The same as above.
Time frame: 3 hours after the whole clinical trail