To evaluate the effects of the combining transcranial direct current stimulation with core stability exercises on trunk performance in poststroke hemiparetic patients, the secondary outcome is to evaluate the balance and the functional performance of the participants.

This study will conduct to 60 male and female patients with post stroke hemiparesis with age ranged between 55 to 70 years, the patients will be categorized to two equal groups.

• Group A (study group): will receive simultaneously a combination of transcranial direct current stimulation combined with core stability exercise.
• Group B (control group): will receive core stability exercise. All patients will be assessed for trunk performance, balance, and functional performance before and after interventions.

Inclusion Criteria:

• Patients will be included if they are ≥ 55 years old of both sex, had a first-time right or left stroke within the preceding six months that damaged the cerebral cortex verified by (computed tomography or MRI report, neurological examination, and medical chart).
• Patients can stand and walk independently.
• Modified Ashworth Scale (MAS) of upper limb muscle ≤ 1+.
• All the patients received a conventional physiotherapy program in the acute stage and post-discharge from the hospital.
• None of the patients participated in any other study or placebo

Exclusion Criteria:

• Patients with neurological or orthopedic problems, paralysis neglect, behavioral abnormalities, dementia any shoulder dysfunction before or post-stroke (dislocation or subluxation), or those who using upper limb splints.
• Recurrent strokes or hemiparesis due to other neurological causes rather than stroke eg .(Brain tumor).
• Obesity (BMI ≥ 30 kg/m2).