Heavy-slow Resistance Training and Ultrasound-guided Corticosteroid Injection in Plantar Fasciopathy

Inclusion Criteria: * History of inferior heel pain for at least three months before enrolment * Pain on palpation of the medial calcaneal tubercle or the proximal plantar fascia * Thickness of the plantar fascia of 4 mm or greater * Mean heel pain of 30 mm or above on a 0 to 100 mm VAS during the previous week Exclusion Criteria: * Below 18 years of age * History of inflammatory systemic diseases * Prior heel surgery * Pregnancy * Pain or stiffness in the 1st metatarsophalangeal joint to an extent where the exercises cannot be performed * Corticosteroid injection for plantar fasciopathy within the previous six months * Known hypersensitivity to corticosteroids or local anaesthetics * Skin or soft tissue infection near the injection site