The foot is a dynamic, load-bearing structure essential for running efficiency, shock absorption, propulsion, and injury prevention. Yet, foot strength, particularly in the intrinsic muscles, is often neglected in runners. Weak foot muscles can lead to faulty mechanics, increasing the risk of injuries such as plantar fasciitis, tibial stress syndrome, and stress fractures. Test 1: Single-Leg Calf Raise How to Perform: Stand on one foot, barefoot. Push through your toes and your heel as high as p