In general the frontal lobe although much of the work is done by the pre-central gyrus.
THe central nervous system
motor cortex
The brain stem controls these functions
The frontal lobe contains the motor strip.
The cerebellum is the part of the brain that controls and coordinates complex motor activities using signals from other parts of the brain and the spinal cord. It is located in the back of the head at the base of the brain.
The medulla oblongata connects the brain to the spinal cord and controls involuntary actions. In comatose patients, it's the only part of the brain that functions.
The part of the brain where balance is processed is the cerebellum. The cerebellum also controls posture and other motor functions.
The part of the brain known as the motor cortex controls all voluntary movements, including running.
The Cerebral Cortex is part of the brain. It controls the motor functions of the human body. It is what is active when you are physically moving.
The motor cortex in the left side of the brain controls voluntary movements of the right leg. The signals from the motor cortex travel through the spinal cord to the muscles in the right leg, enabling movement.
Motor functions are controlled in the motor cortex (particularly, the primary motor cortex and premotor cortex), which are substantially located in the parietal lobe (roughly the rear third of the top of the brain).
The left side of the brain primarily controls the right side of the body. This is due to the crossing over of nerve fibers, known as decussation, in the brainstem. This means that if there is damage to the left side of the brain, it can affect motor function on the right side of the body and vice versa.