The Additional Effect of Hallux Valgus Correction on Runners With First Ray Instability and Patellofemoral Pain Syndrome

The whole intervention period will last for 6 weeks, 2 visits per week, 1 hour per visit in the Research Building Room 630 of National Yang Ming University. All programs will be under the supervision of a physiotherapist with 2-year experience individually. 1. Hallux valgus correction: 1.1 Joint alignment correction (Grade II joint mobilization, 10 times/set, 3 sets/visit) - 1st MTP joint distraction - Proximal talofibular joint anteroposterior glide - (Grade III joint mobilization if any restriction being found) 1.2 Biomechanical taping (using Dynamic taping, 1 time/ visit, keep the taping for 2 days minimum) 1.3 Foot intrinsic muscle strengthening (10 times/set for each exercise, 3 sets/visit): - Short foot exercise - Toespread out exercise - Heel-rise exercises 2. Lower extremity neuromuscular exercises: (10-15 times/set, 3 sets/visit) 2.1 Single lunge 2.2 Stepping down 2.3 Vertical squat 2.4 Vertical jumping

1\. Lower extremity neuromuscular exercises: (10-15 times/set, 3 sets/visit) 1.1 Single lunge 1.2 Stepping down 1.3 Vertical squat 1.4 Vertical jumping All exercises will first start on firm surface without additional resistance/weight. Later, settings will be gradually shifted into on firm surface with resisted band from random direction, on a cushion with/ without resisted band, on a BOSU balance trainer. Progression are made every 2 weeks ideally, while adjustments may be taken into concern due to individual differences.