Testing 1RM uses isotonic movement which may be associated with increased risk of injury as it may include high speed of movement, inability to spread workload evenly over the entire ROM, unsafe for pathological joints, delayed onset of muscle soreness, requirement of equipment which can be expensive, and increased risk of injury, if the movement is done incorrectly. Measuring of 1 RM using the traditional way and by using prediction equation, both involve risk, therefore it brings us to an idea of the use of isometric type of movement in predicting 1RM.