Coordination refers to the linking together of the activities of different organs, so that they work at an appropriate time and rate required by the body.
During physical exercise several organs are involved, these include the heart, skeletal muscles, blood vessels and lungs. Hence for any activity to take place smoothly these organs must function in a coordinated manner. Without coordination body activities become disordered the body may fail to function properly.
Coordination of various organs in the body requires a system which can detect changes in the environment and transfer of information to the appropriate organs so that the body can change in such a way as to ensure its survival.
Coordination is affected by nervous system and hormonal coordination. Hormonal coordination involve organs which secrete chemical substance in response to a certain change in the environment both internal and external stimuli.