FAST & Active Mobility makes a huge difference Canberra Running Coach, July 19, 2022February 8, 2024 When athlete’s hips are stiff and inflexible, muscle imbalance may occur and increase the risk of injury. Muscle imbalance in the hip often causes knee and hip pain, due to the hip flexors and quadriceps overworking in order to compensate for weaker muscles. FAST proactively works with its members to… Continue Reading