Approximately 10% of patients with plantar fasciitis experience persistent and often severe symptoms, though little is known about its etiology. The goal of this study was to employ an objective, simple, and economical approach to measure the change in length of the windlass and assess the efficiency of a specified therapy protocol applied in this study over a one-month period. Age, weight, normal foot type, and gender were employed as matching factors in a matched design. Fifty individuals diagnosed with unilateral plantar fasciitis and an equal number of healthy volunteers all fulfilled the inclusion criteria and took part in this research. Pain assessment utilized a visual analogue scale and the pain subscale of the foot function index, while a valid goniometric method was employed to evaluate weight-bearing windlass, dorsiflexion and plantar flexion ranges of motion. Additionally, foot plantar pressure (both static and dynamic measures) and tape measurement of windlass change in length were assessed. The assessment was completed by all patients before and after their treatment program. Normal subjects were evaluated for control. Treatment methods encompassed ultrasonic therapy, application of an electrical heating pad, utilization of a night splint, engagement in stretching activities for the plantar aponeurosis and Achilles tendon, as well as both extrinsic and intrinsic strengthening exercises. After one month, the patients were reassessed and compared to control volunteers. In those suffering from plantar fasciitis, a substantial link was found between clinical measurements (tape measurement, windlass range of motion) and foot plantar pressure, indicating improvement. The chosen treatment protocol was effective in 96% of patients. For windlass length change, the measurement technique was found to be valid and objective. The chosen therapy procedure was successful in treating persistent plantar fasciitis in patients.