Isokinetic exercises are exercises performed using a specialized apparatus -a dynamometer- that provides variable resistance to a movement, so that no matter how much effort is exerted, the movement takes place at a constant speed.
Without specialized equipment, it almost impossible to carry out voluntary isokinetic muscle contractions i.e. contractions at uniform speed. An isokinetic contraction is therefore, a dynamic contraction but the speed of the entire movement is controlled by the machine. This control prevents injury and also measures areas of strength and weakness in muscles. Any exercise involving the contraction of muscles can be isokinetic if a dynamometer is being used.
Isokinetic exercises are often used in therapeutic settings. Using a dynamometer to control the contraction, isokinetic exercise helps build strength in stroke victims or in patients with limited use of their muscles.
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