The participants will practice core strengthening exercises (3 sessions/ week) for eight weeks.

The participants will practice core strengthening exercises and sensory motor training (3 sessions/ week) for eight weeks.

The participants will perform warm-up exercises including Cat and Camel, spinal movement (spinal flexion and extension cycles), and stretching exercises for the calf, hamstrings, quadriceps and lower back for about 5 minutes. After that, the women will be asked to perform core stability exercises including abdominal hollowing, bilateral knee raise, supine extension Bridge, straight leg rise from prone and alternate arm and leg raise from quadruped. Each exercise will be repeated for 10 times with 7-8 seconds hold and will be increased by four repetitions each week throughout the interventions. During each repetition for every exercise, the patient will be asked to contract her abdominal muscles and maintain this contraction while maintaining her normal breathing pattern.

The Biodex Balance System(Model 950-300, Biodex, Inc., Shirley, NY, USA) will be used to assess posture stability including anterior posterior stability index. It offers 12 levels of platform control and provides up to 20⁰ of surface tilt. Before the participant stepped onto the Biodex Balance System, the platform was in the "locked" position. Participants' data and test parameters were inserted. The parameters will be included trial time (20 seconds), number of trials (3 trials), and in between trials rest (10 seconds). Initial and end stability levels will be set from more to less stable (8-1) respectively. Anterior-posterior stability index (APSI) represents fluctuations from the horizontal around the anteroposterior axis. The higher the value, the lower the anterior posterior stability.

The Biodex Balance System(Model 950-300, Biodex, Inc., Shirley, NY, USA) will be used to assess posture stability including mediolateral stability index. It offers 12 levels of platform control and provides up to 20⁰ of surface tilt. Before the participant stepped onto the Biodex Balance System, the platform was in the "locked" position. Participants' data and test parameters were inserted. The parameters will be included trial time (20 seconds), number of trials (3 trials), and in between trials rest (10 seconds). Initial and end stability levels will be set from more to less stable (8-1) respectively. Medio-lateral stability index (MLSI) represents fluctuations from the horizontal around the mediolateral axis The higher the value, the lower the mediolateral stability index.

The Biodex Balance System(Model 950-300, Biodex, Inc., Shirley, NY, USA) will be used to assess posture stability including overall stability index. It offers 12 levels of platform control and provides up to 20⁰ of surface tilt. Before the participant stepped onto the Biodex Balance System, the platform was in the "locked" position. Participants' data and test parameters were inserted. The parameters will be included trial time (20 seconds), number of trials (3 trials), and in between trials rest (10 seconds). Initial and end stability levels will be set from more to less stable (8-1) respectively. Overall stability index (OSI) is a composite of MLSI and APSI so it is sensitive to changes in both directions. These indices are standard deviations assessing fluctuations around the zero point from the horizontal rather than around the group mean. Higher values indicate more deviations and poor balance control

The Arabic version of Oswestry Disability Index (ODI) will be used to assess the function disability level of all participants before and after treatment. It consists of ten sections with six responses about daily activities. For each section the total score is 5; if the first statement is marked the score = 0; if the last statement is marked the score = 5. Intervening statements are scored according to rank. If more than one box is marked in each section, take the highest score. If all ten sections are completed the score is calculated as follows: Example: 16 (total score) of 50 (total possible score) × 100 = 32 %. If one section is missed (or not applicable) the score is calculated as follows: Example: 16 (total score)/45 (total possible score) × 100 = 35.6 %. A low score = low degree of disability, a high score = high degree of disability