control group (A) will receive physical therapy program The exercise session for one hour for each child in both groups, conducted 3times/ week for 3 successive months.

1. Flexibility exercises for shorted muscles and spastic muscles.
2. Strengthening training focusing on the trunk lower limb and upper limb muscles for weak muscles.
3. Postural control exercise in different positions and different surfaces
4. General endurance training (Sherief et al., 2020).
5. Exercises to facilitate hand function including basic reaching grasping, carrying, release and the more complex skills of in-hand manipulation and bilateral hand use were conducted.

Group (B) will receive the same physical therapy program as group (A) in addition to combined FES (wrist extensors) and mirror therapy while doing specific exercises (including, grasping and release) conducted 3 times / week for 3 successive months.

1. The treatment will be explained to every child and his/her parent emphasizing its benefits.
2. Subjects were treated with a combination therapy of task specific mirror therapy and functional electrical stimulation, consisting of two tasks, for a total duration of thirty minutes.
3. The subject was positioned on a height adjustable table with the mirror placed in front of the midline.
4. The positive electrode and negative electrode of the muscle stimulator were placed over the muscle belly of the wrist extensors on forearm over the motor point of extensor digitorum communis/ extensor carpi radialis brevis/ extensor carpi radialis longus (between one-third and half-way from the proximal end of the dorsal forearm) of the affected upp

• Subjects were treated with a combination therapy of task specific mirror therapy and functional electrical stimulation, consisting of two tasks, for a total duration of thirty minutes.
• The subject was positioned on a height adjustable table with the mirror placed in front of the mid line.
• The positive electrode and negative electrode of the muscle simulator were placed over the muscle belly of the wrist extensors on forearm over the motor (between one-third and half-way from the proximal end of the dorsal forearm) of the affected upper limb.
• The subject was then instructed to observe the mirror reflection for one to two minutes, trying to visualize the mirror image as the affected limb, asked to perform slow, easy to achieve simultaneous bilateral movements (perceived bilateral movements) while continuing to look at ,with the affected limb performing synchronously with the duty cycle of electrical stimulation.

functional ability is assesed by The Pediatric Evaluation of Disability Inventory (PEDI) is an interview-based tool that assesses functional abilities, level of independence and extent of modification needed for a child to carry out functional activities. Originally published in 1992 by Haley et al., it has been translated into multiple languages and developed into a computer-adaptive test called Pediatric Evaluation of Disability Inventory-Computer Adaptive Test (PEDI-CAT).

It is scored on a four-point scale:

0 - unable to perform the task

1. - can perform the task with assistance
2. - can perform the task independently but with some difficulty
3. - can perform the task independently and without difficulty

Quality of life will be assessed by The Pediatric Quality of Life Inventory (PedsQL

The PedsQL 4.0 Generic Core Scales instrument is the last version of PedsQL contain 23-items, including formats for typically developing children and adolescents 2 to 18 years old, and consists of the following:

Physical functioning (8 items). Emotional functioning (5 items). Social functioning (5 items). School functioning (5 items).

Each item of the instrument is scored on a 5-point scale from 0- 4 for ages 8-18, (0 = never a problem, 1 = almost never a problem, 2 = sometimes a problem, 3 = often a problem, 4 = almost always a problem) ad 3-point scale for young child self-reporting (ages 5- 7) as following (0 = not at all a problem, 2 = sometimes a problem, 4 = a lot of a problem) the large score means worst symptoms , scores are linearly transformed to a 0-100 scale (0 = 100, 1 = 75, 2 = 50, 3 = 25, 4 = 0) in which high score means better condition.

A goniometer will be used to evaluate active range of motion of wrist extension. The child will sit on chair and the examiner palpates the relevant bony landmarks and aligns the goniometer and the child moves the joint through the available range of motion.

, the ROM will be measured as follow: Wristn extension: Centre the fulcrum of the goniometer over the lateral aspect of the wrist over the triquetrum and align the stabilized arm with the lateral midline of the ulna using the olecranon process and ulna styloid for reference. Align the moving arm of the goniometer with the lateral midline of the fifth metacarpal.