Immediate Effects of Abdominal Hypopressive Technique Versus PNF Stretching in Shortened Hamstring Syndrome: A Pilot Randomized Controlled Trial

Both AHT and PNF techniques produced immediate improvements in hamstring flexibility in adults with shortened hamstring syndrome. However, these findings are exploratory, and, given the pilot nature of the trial, no conclusions can be drawn regarding the superiority of one method over the other.