Shiatsu is a traditional Japanese healing art, it is an oriental massage technique. In Japanese the word means "finger pressure".
Shiatsu uses acupressure to stimulate the flow of energy around your body, to make you feel balanced and relaxed. Shiatsu can help in a wide range of conditions from specific injuries to more general symptoms of poor health.
The organs of your body have their sensory touches at the bottom of your foot, if you massage these points you will find relief from aches and pains as you can see the organs are on right and left foot, the heart is on the left foot..
This time, it put organs on the feet as they are. Typically they are shown as points and arrows to show which organ it connects to.It is indeed correct since the nerves connected to these organs terminate here. This is covered in great details in acupressure studies or textbooks.
God created our body so well that he thought of even this. He made us walk so that we will always be pressing these pressure points and thus keeping these organs activated at all times.
For more info about Shiatsu please visit : www.shiatsu.org/