Ted Lewis, also currently credited as Ed Paul, is one of NY's most well-known voice actors.
circular movement around an axis: dorsiflexion: decreasing the angle of the ankle joint so that the foot bends backwards (upward) plantar flexion: the motion that extends the foot downward toward the ground as when pointing the toes: plant/o: sole of the foot: supinaton: as applied to the hand, the act of turning the palm forward, or up: pronation
This stretch targets the ankle joint ligaments and tendons of the top of the foot. To increase the range of the stretch, rotate your foot clockwise and counter-clockwise, making an imaginary circle with your toes. This is a good warm-up for the ankle joint, especially if you're prone to ankle sprains or tendonitis.