Flat bottom is one of the bottom forms of ceramic containers. That is, the whole bottom surface is relatively flat, with no obvious ups and downs. A slightly concave bottom shape also belongs to the category of flat bottom. Before the Tang Dynasty, flat bottom was the most basic and common bottom shape of ceramics, but after the Tang Dynasty, some pots, jars, altars and plates were still flat bottom.

Flat shoes (also known as flat shoes) refer to shoes whose soles have no slope. This kind of shoes has almost no heel and no arch support. Common flat shoes include flat shoes, board shoes, flat slippers and ballet shoes. Flat shoes are simple and generous in style and easy to manufacture. Men's flat shoes are simple and capable, while women's flat shoes are gentle and refined.

Flat shoes feel comfortable, but they are not suitable for all walking occasions, and their effects on foot health are also very different in the scientific community. Flat shoes, because there is no arch support and no heel buffer, may cause foot pain, muscle injury, flat feet and other symptoms when worn for a long time.

This is also why the common styles of shoes such as men's leather shoes, women's shoes and sports shoes on the market have a certain height of heels. There are no absolute advantages and disadvantages between flat shoes and heel shoes, and both should be analyzed and selected according to the situation of individual feet.

Health effects

The influence of flat shoes on foot health has always been the focus of scientific research. China medical journal "Health Guide" points out that flat shoes have insufficient support for feet, especially the arch and heel. There are plantar ligaments, plantar aponeurosis and muscles on the upper arch of human body, and there is not enough arch support.

It may lead to excessive tension in the soft tissue that maintains the arch of the foot, which may lead to flat feet. Flat feet can cause knee pain, spinal nerve injury and back pain. Low-heeled shoes and middle-heeled shoes can make the stress on the soles of the feet uniform, slow down the arch strain, increase the cushioning of the heels, and make the wearer walk longer.