Background: Plantar fasciitis, a condition commonly observed in older adults, mostly caused by recurrent microtrauma or overloading of the fascia. It is the leading cause of heel pain. Purpose: Were to compare between the effect of instrument assisted soft tissue mobilization versus positional release technique on pain pressure threshold and foot function level among patients suffering from chronic plantar fasciitis. Subjects: Sixty patients from both genders with chronic plantar fasciitis took part in this study.