BreEStim is voluntary breathing controlled transcutaneous electrical nerve stimulation.

EStim is transcutaneous electrical nerve stimulation.

BreEStim will be applied for 10 to 20 minutes per session for multiple sessions

MAS will be performed to check changes of finger flexor spasticity after one session of treatment.

The Modified Ashworth scale (MAS) scoring is categorical and ranges from 0 to 4, as follows:

0: No increase in muscle tone

1. Slight increase in muscle tone, manifested by a catch and release or by minimal resistance at the end of the range of motion when the affected part(s) is moved in flexion or extension 1+: Slight increase in muscle tone, manifested by a catch, followed by minimal resistance throughout the remainder (less than half) of the range of motion (ROM)
2. More marked increase in muscle tone through most of the ROM, but affected part(s) easily moved
3. Considerable increase in muscle tone, passive movement difficult
4. Affected part(s) rigid in flexion or extension

FMA will be assessed to test function changes of finger extensors and hand function after one session of treatment.

The upper limb motor function domain of the FMA scale will be used, and the score range for this domain is 0 to 66, with a higher score indicating better function.