Cross education is a neurophysiological

Neurophysiology

Neurophysiology is a part of physiology. Neurophysiology is the study of nervous system function...

 phenomenon where an increase in strength

Physical strength

Physical strength is the ability of a person or animal to exert force on physical objects using muscles. Increasing physical strength is the goal of strength training.-Overview:...

 is witnessed within an untrained limb following unilateral strength training in the opposite, contralateral limb.

Cross education can also be seen in the transfer of skills from one limb to the other.

Examples

A resistance trainer witnesses strength gains in her left and right biceps

Biceps

Biceps may refer to:*Biceps brachii muscle, a muscle located on the inside of the upper arm*Biceps femoris muscle, one of the hamstring muscles of the back of each thigh*Biceps , a point in a metrical pattern...

 after participating in a strength training program for only her right biceps. This phenomenon is due to factors both at the muscular, spinal

Vertebral column

In human anatomy, the vertebral column is a column usually consisting of 24 articulating vertebrae, and 9 fused vertebrae in the sacrum and the coccyx. It is situated in the dorsal aspect of the torso, separated by intervertebral discs...

 and neural levels.

A basketball player learns to dribble a basketball with his right hand and then successfully performs the task with his left hand even though he had undergone no previous training with his left side.