Twenty-five cerebral palsied hemiplegic children will be treated by the traditional physical therapy program ( balance board, single limb support, standing with throwing ball ) based on Neurodevelopmental technique for 6 month

twenty-five cerebral palsied hemiplegics will be included in this group; they will be receive the regular physical therapy program in addition to training by Virtual reality with use of the HMD helmet allows users to perceive a 3D stereoscopic images that enable participants to interact with different balance games as football Soccer, football heading (known as Soccer Heading), the tight rope walks and the Penguin slide game.

Twenty-five cerebral palsied hemiplegics will be included in this group; they will be receive the regular physical therapy program in addition to training by standing and walking in balance beam by differentiate levels of walking balance proficiency as varying widths of beam and walking in different direction (forward or backward).

children treated by Virtual Reality for 15 min. besides the traditional physical therapy program

Evaluation materials that used in assist balance :

HUMAC Balance Assessment system consists of:

1- The force platform 2- The HUMAC CD holding the operating program This test will be use assess the sensory integration of balance and postural control in the conditions of eyes open and eyes closed from standing, lasts for 30 second and the test was repeated for three times and the mean value is calculated from the result of each trial which appears in the form of percent of stability in each trial

Evaluation materials

Six Minute Walk Test (6MWT) it is a valid and reliable instrumentation using to asses walking capacity The child of this test is to walk as far as possible for 6 minutes. You will walk back and forth in this hallway, after the test, measured walking capacity exercise (BP, HR and SpO2) were re-measured.