Planning In Sports — Physical Education STD 12 Commerce — Question

Isotonic strength (Dynamic Strength): The word isotonic is comprised of two word "ISO" means ‘same’ and tonic means tone. Involves movement of muscles ie. Shortening and lengthening of muscles. In these type of exercise we can observe movements directly. The length of muscle can be seen and called, eccentric contraction and concentric contraction accordingly, Eg. When we throw a ball, jump, Run, weight training. We can observe these type of movement widely in games and sports. These exercises can be done with or without equipments. They are best for strength development and are good for conditioning in sports like, callisthenic exercise, light Rhythmic exercise, exercise with light weight.