Customized Foot Orthoses on Muscle Activity During Standing and Gait in Plantar Heel Pain

Inclusion Criteria: * Reaching the specific criteria of PHP including * A complaint of tenderness from the palpation of the medial calcaneal tubercle and the medial aspect of the proximal portion of the plantar fascia, or pain along the plantar fascia at medial longitudinal arch side * The presence of heel pain immediately during the first few steps of walking in the morning or after a prolonged period of inactivity; and gradually decreased throughout the day with ordinary walking, and worsened with prolonged activity * Having the symptom of heel pain for at least 6 weeks, indicates the chronic condition * Having the maximum level of pain intensity during last week using the visual analog scale (VAS) at least 3 out of a full 10 scores Exclusion Criteria: * Having positive sciatica test, indicating the L5-S1 nerve root irritation * Having a history of lower extremity fracture * Having a history of lower extremity surgery * Having been diagnosed with gout, diabetic neuropathy, rheumatoid arthritis, systemic lupus erythematosus (SLE), cancer, infectious disease, and tumor