Abdominales / ABS L-sit Tutorial – Progressions and Muscles worked surpassinggravity | agosto 15, 2014 L-sit Tutorial Video L-sit Tutorial here: https://www.youtube.com/watch?v=BYAS4N4hoeE L-sit is a great bodyweight exercise, that works your abs, hip flexors, triceps and back muscles isometricly. L-sit Tutorial STEP 1 : Leer más