Effect of Foot Core Control Training on Dorsiflexion Function and Gait Biomechanical Characteristics of Patients With Chronic Plantar Fasciitis

Effect of Foot Core Control Training on Dorsiflexion Function and Gait Biomechanical Characteristics of Patients With Chronic Plantar Fasciitis

The pain and abnormal gait postures observed in CPF patients may be associated with impaired foot function. However, few studies have examined the dorsiflexion function of the big toe in CPF patients, and the effectiveness of foot core control training in alleviating pain and improving gait remains unclear. Restricted movement of the metatarsophalangeal joint (MTPJ1) may severely compromise foot function, leading to gait pattern alterations and subsequent instability. To address this, our study aims to improve symptoms, functional outcomes, and gait through foot core control training interventions. We recorded kinematic parameters and biomechanical data during the foot's plantar phase at toe-off before and after functional training for CPF patients. Comparative analysis between intervention groups revealed whether foot core control training can effectively enhance big toe dorsiflexion function and gait biomechanics in CPF patients. This research clarifies the therapeutic efficacy of foot core control training for CPF patients.

Inclusion Criteria:

• (1) Ultrasound findings indicating plantar fascia thickness>4 mm or 20% thickening compared to the contralateral side; (2) Age 25-45 years; (3) Ankle dorsiflexion range <65° in weight-bearing standing position; (4) Persistent heel pain lasting ≥3 months but ≤1 year; (5) No prior treatment within 1 month prior to hospital admission; (6) Subjects without prior CPF surgical intervention.

Exclusion Criteria:

• (1) Concurrent presence of severe malignant diseases; (2) Abnormal conditions such as skin ulcers or infections on the sole; (3) Concurrent neurological or immunological disorders; (4) Concurrent heel deformity or fracture; (5) Secondary CPF caused by rheumatoid arthritis, ankylosing spondylitis, or other conditions; (6) Concurrent cognitive impairment, mental abnormalities, or difficulty completing relevant assessment scales.