About this trial
This prospective, single-center, two-arm, parallel-group randomized non-inferiority trial will compare physician-led face-to-face exercise instruction with standardized video-based exercise instruction in adults with plantar fasciitis. Participants will be randomized in a 1:1 ratio to receive either face-to-face exercise training by an orthopedic physician or access to a standardized exercise video via QR code/web link. The exercise content will be identical in both groups; only the method of instruction will differ. The primary outcome will be the change in the Foot Function Index total/index score from baseline to 3 months. Secondary outcomes will include pain score, Foot Function Index subscales, exercise knowledge, exercise adherence, education time, video viewing status, additional treatment requirement, and patient satisfaction.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults aged 18 to 70 years
Clinical diagnosis of plantar fasciitis
Plantar heel pain lasting for at least 3 months
Heel pain that is most prominent with the first steps in the morning or after rest
Disqualifiers
Previous foot or ankle surgery on the affected side
History of foot fracture, foot tumor, advanced neuropathy, Charcot arthropathy, or tarsal tunnel syndrome
Corticosteroid injection, extracorporeal shock wave therapy, platelet-rich plasma injection, or other interventional treatment for plantar fasciitis within the last 6 months
Inflammatory arthritis or systemic rheumatologic disease affecting the foot
Trial design
Parallel
Treatments tested in this trial
Physician-Led Face-to-Face Exercise Instruction
BehavioralFace-to-face instruction and demonstration of a standardized home exercise program by an orthopedic physician. The program includes plantar fascia-specific stretching, gastrocnemius/soleus stretching, plantar fascia self-massage, gradual toe raises, and towel pull exercises.
Video-Based Exercise Instruction
BehavioralAccess to a standardized home exercise video prepared by the study team via QR code or web link. Participants will be instructed to watch the video at home and perform the same exercise program used in the physician-led group.
Treatment groups
Trial outcomes
Primary outcomes
Change in Foot Function Index Total/Index Score From Baseline to 3 Months
The Foot Function Index total/index score is a patient-reported measure of foot pain, disability, and activity limitation, converted to a 0-100 score. Higher scores indicate worse foot-related function. The primary endpoint will be the change from baseline to 3 months, calculated as baseline FFI score minus 3-month FFI score; higher positive values indicate greater clinical improvement.
Secondary outcomes
Change in Numeric Rating Scale Pain Score From Baseline to 1 and 3 Months
Heel pain while walking during the previous week will be assessed using an 11-point numerical rating scale ranging from 0 to 10, where 0 indicates no pain and 10 indicates unbearable pain. Change scores will be calculated from baseline to each follow-up visit.
Change in Foot Function Index Pain Subscale Score From Baseline to 1 and 3 Months
The pain subscale of the Foot Function Index will be used to assess foot-related pain. Scores will be converted according to the standard Foot Function Index scoring method; higher scores indicate worse pain.
Change in Foot Function Index Disability Subscale Score From Baseline to 1 and 3 Months
The disability subscale of the Foot Function Index will be used to assess foot-related functional disability. Higher scores indicate greater disability.
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