Agility can be defined as the ability to maintain the position of body while moving rapidly and changing directions. It is related to athletic abilities like power, speed strength, and balance and it is a determinant of sport performance in the field and also court sports like volleyball, rugby, etc. T-test is a well-accepted test for agility which is easy to administer. It does not require complex equipment and long hours of preparation. T-test appeared to be a highly reliable tool in measuring a combination of physical components including speed, agility and power of lower limbs. 

 

Countermovement jumping ability is correlated with agility and can be used as a predictor of agility test time especially in volleyball. Technical skills like spiking, serving, setting, blocking and passing accuracy along with tactical skills seem to play a vital role in volleyball performance. 505-test is also a reliable and valid test for the evaluation of agility in many sports but it requires the use of dual beam electronic timing gates which can be otherwise called photocells.