The Effect of Whole Body Vibration on Neck Disability and Proprioception in Patients With Forward Head Posture

The participants will be instructed to stand on the vibration platform bare footed and distribute their weight evenly on both feet (fig 3). Next, they will be asked to do a head and neck retraction while looking forward with their knees at 30 degrees of flexion. In order to prevent fatigue in the subject's cervical area due to holding their head and neck in retraction, they will be asked to hold this position for 15 seconds then rest for 5 seconds. Since each set will last 60 second this allowed the subjects to do 3 retractions in each set. In total each subject will perform 15 retractions during the training. The subjects will experience a vertical vibration at a frequency and amplitude of 30 Hz and 4 mm during the sets (Salami et al., 2018).

Posturalcorrectionexercisesintheformofstretchingandstrengthening exercise. Manual stretching exercises as passive stretch to (upper trapezius, levator scapulae, sub occipitalis, scalene, sternocleidomastoid, and pectoralis major muscles), 30 seconds of 3-5 repetitions for each muscle, followed by 30 seconds of rest, as well as isotonic exercises (to strength deep neck flexors and scapular retractor muscles) 3 sets of 12 repetitions each with a 6 second hold in between, with a 1-2-minute rest between sets (Kisner. and Colby 2012).