lactic acid
There are many muscles in the body that are used in a roundhouse kick. The abs are used, side muscles, thigh muscles, and the butt muscles.
They contract and release to move your body
ATP is used by the body as a source of energy for the muscles.
Your Heart!
11 muscles are used in your body while talking.
Most of the muscles of the body are exercised when running. Of course the foot and leg muscles are needed the most but the muscles of the torso and upper body are used as well.
Skeletal muscles help regulate body temperature by generating heat through muscle contractions. When the body is cold, muscles shiver to produce heat, raising body temperature. Conversely, when the body is hot, muscles relax to release heat, helping to cool the body down.
The gluteus muscles are used when walking. They support the upper body in an upright posture.
the tongue and jaw
lower body parts
The strongest muscles in the human body are the masseter muscles, which are located in the jaw. They are capable of generating the most force compared to other muscles in the body. These muscles are used for chewing and biting, and are able to exert a significant amount of pressure.
your leg muscles mostly and you also move your whole body really