Efficacy of Biodex Balance Training Versus Whole Body Vibration Training in Patients With Knee Osteoarthritis

Sixty Subjects of both genders aged 40-60 years old with grade 2 knee osteoarthritis years will diagnosed by orthopedists they will assigned randomly into three groups: * Group A Will receive WBV Training with frequency of 35 Hz, peak-to-peak amplitude of 4- to 6-mm Vertical sinusoidal vibration, and the total exposure time of 30 minutes (vibration 60 seconds, interval rest 60 seconds) in addition to traditional exercises,3 sessions per week for four weeks. , A vibration device (My7™ model Personal Plate, Power Plate, Northbrook, IL, USA) will used in all WBVT sessions. * Group B will receive Biobex training and traditional exercises Total time of training was 10 minutes each set is 3 minutes with 20-second rest intervals * Group C Patients will receive only traditional exercises, 3 sessions per week for four weeks. a good general guideline is 2-3 sets of 10-15 repetitions for each exercise.

WBV Training with frequency of 35 Hz, peak-to-peak amplitude of 4- to 6-mm Vertical sinusoidal vibration, and the total exposure time of 30 minutes (vibration 60 seconds, interval rest 60 seconds) in addition to traditional exercises,3 sessions per week for four weeks. , A vibration device (My7™ model Personal Plate, Power Plate, Northbrook, IL, USA) will used in all WBVT sessions.

1. Stretch exercises (flexibility exercise) Rectus femoris, Iliotibial band, Hamstring and self-stretch for calf muscle (3sets, each stretch 30 sec hold, between each set 5sec rests). 2. Strengthen exercises(resistance exercise) 1. Isometric Exercises for quadriceps (10 rep,3sets) 2. Hip abductors strengthening 45 degree (10 rep,3sets) 3. Hip extensor strengthening 15 degree (10 rep,3sets) 4. Straight leg raising 45-70 degree (10 rep,3sets) 5. Short arc knee extension (10 rep,3sets)