Knee cross over to kick
Kneel with knees aligned under hips, left elbow on ground under left shoulder and right hand on ground under right shoulder. Lift right leg, keeping knee bent and toe pointed, and cross it behind left knee. Shift weight to your left side as you straighten right arm slightly and lift right leg up to shoulder height then kick out with control, keeping toe pointed. Repeat for one minute, then switch sides.
Modified hundreds
Sit tall with knees bent 90 degrees and toes on the ground (heels lifted). Extend arms forward at chest level, palms facing down, and lean back about 45 degrees to engage the abs. Pulse straight arms up and down (raise and lower an inch or less) for one minute or until you reach 100 pulses. Halfway through, lift your feet off the ground. Keep your core tight and chest lifted so you don’t sink down.
Standing side plank
Stand on left foot and raise arms out to shoulder level, palms facing ground. Bend over from hips and raise right leg out to the side as high as you can, toe pointed. Keeping arms and torso still, lower toes to the ground. Raise leg again and repeat for 90 seconds, then switch sides.