Y-Balance Test performance for predicting plantar fasciitis in male recreational marathon runners: a prospective cohort study

YBT-PL interlimb asymmetry was associated with a greater likelihood of developing PF, and YBT-PL interlimb asymmetry greater than 4.5 cm was a strong risk factor for the development of PF in male recreational marathon runners. For every 1-cm increase in the interlimb asymmetry of YBT-PL, the risk of developing PF increased 1.183-fold. Practitioners should consider improving interlimb asymmetry as an injury prevention and treatment strategy.