Which sport from ancient china is said to be the predecessor of modern soccer

Cuju, the soccer-like game in China, was introduced during the time of Qin Dynasty from 255 BC to 206 BC. Its popularity grew during the reign of the Han Dynasty's Emperor from 206 BC to 220 AD. 

Initially, Cuju was played to train soldiers during the Qin Dynasty. It became a part of the Emperor's birthday celebration during the Han Dyanasty.

Cuju was played by both men and women. Its ball was made out of leather stuffed with soft fillings like fur. No hands must be used in playing the game. The ball must be kicked inside a net or a small hole. Team work is not needed since the focus of the game is to observe an individual's skills.

Muscles in the body us with a lot of things for example, if i wanted to lift a heavy box and had no muscle i would just collapse where i was because of the fact muscles hold us together. overall they are 650 muscle in the human body, all of them have different purposes and ways to keep us together. there are three types of muscle in the body skeletal, smooth, and cardiac muscle. skeletal muscle are attached to the bone and with movement. smooth muscle, this is found in the wall of our organs, such as our stomach, this muscle with movement   as well, without this muscle, we would only be allowed to eat small amounts. the cardiac muscle is the heart muscle and probably the most important one. these are only found in the walls of the heart and the heart pump blood to the other parts of your body. we have two different types of muscle fibers, slow twitch and fast twitch. slow twitch muscles enable long-endurance feats such as distance running. fast twitch fatigue faster but are used in powerful bursts of movements like sprinting. there are three different types of muscle contractions concentric, eccentric, isometric. concentric contraction causes muscles to shorten, thereby generating force.   eccentric contractions cause muscles to elongate in response to a greater opposing force. isometric contractions generate force without changing the length of the muscle.: //athleticquickness.com/muscle-contraction-types-part-1/