Question

Differentiate between isometric, isotonic and isokinetic exercises.

Differentiate between Isometric and Isotonic exercise with suitable example.

Answer 1

Isometric Exercises	Isotonic Exercises	Isokinetic Exercises
It develops maximum strength.	It develops explosive strength.	It develops explosive strength as well as strength endurance.
Isometric exercise involves static muscle contraction against a stationary resistance.	Isotonic exercise involves dynamic movement but doesn't require a constant movement speed.	This involves movement but maintains a constant speed.
It is used only in a few games like gymnastics and weightlifting, wrestling, etc.	Isotonic exercise is the most popular and effective type of strength training used in almost all games/sports.	Isokinetics generally involves muscle contraction against electronic resistance and is specific to a particular sport.
Iso-same, metric-length: this is a type of muscle contraction in which muscle remains at the same length.	Iso-same, tonic-tension. A type of muscle contraction in which the muscle changes the length, either shortening or lengthening.	Iso-same kinetic speed. Isokinetic exercises are done with a machine that regulates movement, velocity and resistance.
It can rehabilitate immobilised joints.	Does not contribute to rehabilitation.	It cannot rehabilitate immobilized joints.
The amount of strength developed does not last long.	Strength developed through this method remains for a longer period.	The amount of strength developed is excellent.
Poor development of coordination and skill.	It develops excellent coordination.	It develops good coordination.
Does not contribute to the development of endurance and speed.	It contributes to the development of strength, endurance and speed.	Better development of speed as compared to isotonic.
Examples are Pushing against a wall and flexing arm hang, etc.	Its examples are push-ups and pull-ups, rope climbing, bench press, overhead press, etc.	Its examples are treadmill, cybex and butterfly strokes in swimming, etc.