Athletic InjuriesGaitFractures, BoneFracture HealingRunningHip FracturesFemoral FracturesSpinal FracturesGait Disorders, NeurologicFracture Fixation, InternalFracture FixationFractures, ComminutedRadius FracturesOsteoporotic FracturesFractures, StressWounds and InjuriesFractures, SpontaneousFemoral Neck FracturesUlna FracturesFracture Fixation, IntramedullaryRib FracturesSkull FracturesMandibular FracturesBrain InjuriesGait AtaxiaTooth FracturesBiomechanical Phenomena