Low-frequency Electrical Stimulation of Acupuncture Points

sEMG eigenvalues: two main aspects, maximum value (MAX), and root mean square value (RMS). MAX reflects the maximum contraction strength of the measured muscle. RMS is the root mean square of the EMG transient amplitude over time, which reflects the average change in EMG signal and is therefore used as an evaluation of muscle contraction performance.

In this study, the upper extremity and hand muscle strength and motor function were assessed to evaluate the efficacy of patients, and the consciousness, upper extremity and hand evaluation components were selected for assessment. The lower the CSS score, the better the improvement in neurological deficits.

Grade I: no movement; Grade II: only weak flexion and extension; Grade III: hook grasp, but not finger extension; Grade IV: able to pinch laterally and thumb release, fingers can be extended semi-randomly and to a small extent; Grade V: can ball and column grasp, fingers extend simultaneously, but not individually; Grade VI: all grasps can be completed, but the speed and accuracy are worse than the non-involved side.

no increase in muscle tone; Grade 1: mildly increased muscle tone, with minor resistance felt during passive flexion/extension to the maximum extent in grasping movements; Grade 1+: slightly increased muscle tone, with minor resistance felt during flexion/extension to more than 1/2 range in grasping movements; Grade 2: heavy resistance felt in most ranges of motion, but passive activities can be performed Grade 3: muscle tone is significantly elevated and passive activities are not easily performed; Grade 4: the affected portion of the limb exhibits tonic extension or flexion.

1 point: gripping action can be completed, but can not resist tiny resistance; 2 points: can hold an object for 5s, but can not resist medium resistance, or grip is not standard, uncoordinated; 3 points: grip is normal, can hold an object against larger resistance for 5s, and can release the hand like normal people, the total score is 24 points, the higher the score, the The higher the score, the better the hand function.

Grade 0: complete muscle paralysis, palpation muscle completely no contraction; Grade I: slight muscle contraction, but can not cause joint movement; Grade II: can drive the joint horizontal activity, but can not fight gravity; Grade III: can fight gravity to do active joint activity, but can not fight resistance; Grade IV: can fight a larger resistance, but weaker than normal; Grade V: normal muscle strength .

Clinical efficacy was assessed using the nimodipine method as a percentage reduction in CSS score: [(pre-treatment score - post-treatment score)/pre-treatment score] × 100%. Basic healing: reduction rate ≥90%; Significant improvement: 46%≤ minus rate <90%; Progress: 18%≤ minus rate <46%; The ratio of the sum of basic healing, obvious progress, and progress to the sample size of a single group is the total effective rate of the group.