this study will be conducted to investigate the effect of planter flexors spasticity on postural stability, risk of falling and function outcomes in patients with stroke

Lower limb spasticity is a common following a cerebrovascular attack (CVA) or stroke, which can affect the balance and gait of patients. This then not only affects independence, and quality of life but increases the risk for other concerns, such as falling and an increased sedentariness, which could further affect health outcomes.The spasticity of the planter flexors disturbs walking, can impede toe clearance during the swing phase of gait causing the patient to fall as a result their toe 'catching' on the ground .In stroke patients characteristically the extensors of the leg are spastic and the flexors are weak . All these changes lead to gait disturbance as well as impaired functional mobility of patients.Studies have shown that patients with stroke have a higher risk of developing the fear of falling, which may be related to an increased risk of falling after stroke .The incidence of fear of falling after stroke has been reported to be approximately 32 to 66 percent. Fear of falling is associated with adverse consequences such as limited activity, increased incidence of falls, decreased quality of life, and increased hospitalization and case fatality rates

Inclusion Criteria:

• Sixty eight first-ever unilateral ischemic stroke patients as diagnosed by CT ''computed topography'' or MRI ''magnetic resonance imaging.
• Patients will be both sexes.
• Their age ranges from 45 to 60 years
• The patients will be divided into 2 groups based on their level of ankle plantar flexor spasticity according to the Modified Ashworth Scale (MAS):
• Low spasticity (grade 1 and 1+).
• High spasticity (grade 2 and 3).
• Duration of illness will be over 6 months post-stroke.
• Body mass index of patients will be ≤ 30 kg / m2
• Patients can stand independently.
• Normal cognitive abilities according to MOKA scale will be ≥ 24

Exclusion Criteria:

• Bilateral hemiplegia.
• Patients having any other neurological disorders affecting their lower limb extremity as MS, Parkinson disease, peripheral neuropathy.
• Patients with visual auditory impairment affecting their ability to complete task. 4.Patients with previous fracture of the lower limbs or any other musculoskeletal disorders such as severe arthritis, fixed ankle contracture, ankle surgery, leg length discrepancy or being treated with botulinum toxin injections within the past 3 months of study participation.

Sixty eight unilateral ischemic stroke patients as diagnosed by CT ''computed topography'' or MRI ''magnetic resonance imaging from both sexes and will be assigned to two groups depending on level of spasticity.

• Low spasticity (grade 1 and 1+).
• High spasticity (grade 2 and 3).