Pronation
Pronation is the motion that turns the palm of the hand downward or backward.
Pronation
Pronation is the motion that turns the palm of the hand downward or backwards. It involves rotating the forearm so that the palm faces posteriorly or downwards.
Pronation of the hand results in the distal end of the radius being medial to the ulna and the palms facing backward or downward. This position is in contrast to the supination of the anatomic position.
When you walk on the outside edges of your feet
Commonly used bike hand signals for indicating turns include extending the left arm straight out to the side for a left turn, and bending the left arm at a 90-degree angle upward for a right turn. To indicate a stop, cyclists can extend the left arm downward with the palm facing backward.
To indicate that you are braking while riding a bicycle, you should use your left hand to extend downward with your palm facing backward.
In American Sign Language, you can sign "afternoon" by combining the signs for "after" and "noon." Start by signing "after" by moving your dominant hand in a backward motion, then sign "noon" by tapping your wrist with the hand in an upward motion.
When walking on the ground, the left leg is moved forward simultaneously with the right hand because of the motion of the torso. The torso twists slightly causing a pendulum motion with the arms and hands.
When the palm of the hand faces backward, the radius crosses over the ulna in the forearm. This movement helps to rotate the forearm and allow the hand to face backward.
In American Sign Language (ASL), you can sign "goodnight" by using your dominant hand to make a flat palm facing downward, and then moving your hand in a downward motion close to your body. It's a simple and common sign used to wish someone a peaceful night.
To sign "boy" in American Sign Language (ASL), make a downward motion with your flat hand from your forehead to your chin, keeping your fingers together.