Kneel with a resistance band anchored behind you and hold the band ends near your shoulders. Crunch your torso downward while twisting toward one side, engaging your core and obliques. Return to the start with control, then alternate sides to maintain tension and strengthen rotational stability through the waist.
Log your band kneeling twisting crunch sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.