Laying on ground with knees bent and feet on the ground, have arms outstretched at sides and with a dumbbell in one hand, then crunch up torso while bringing both arms up, in a circular motion keeping arms straight, in front of you, pass the dumbbell to your other hand, always keeping both arms straight, and as you release the crunch bringing torso back to ground, also bring both arms back to ground, stretched out at sides with the opposite hand holding onto dumbbell. (robinskey.com)
Lying on ground with knees bent hold Ugi on ground with arms outstretched behind head. (robinskey.com)
Stand straight and hold sandbag or other weight at arm's length, around thigh level, bring one leg off ground with knee slightly bent and bend torso at waist, pivoting body forward and bringing down sandbag in front to ground and lifting raised leg out straight behind you, keeping balance on one leg and then come back to start position. (robinskey.com)