However, no special equipment is required for any of these initial four best ab exercises for beginners. (lasting-weight-loss.com)
Below I have collected the best 21 best ab workouts which proven to be the most efficient sorts of exercises to train the abdominal as well as lower back. (abmachinesguide.com)
We have come to the end of our list of best ab machines for 2018. (dbstrength.com)