The Mason twist is a more advanced version of the Russian twist. It is performed in the same manner, except the legs are straight and the feet are held off the ground (in the V-sit position) for the duration of the exercise.
The Mason twist is a more advanced version of the Russian twist. It is performed in the same manner, except the legs are straight and the feet are held off the ground (in the V-sit position) for the duration of the exercise.