In isokinetic exercises, the speed of the movement matches the amount of resistance. The more muscle force you apply, the more resistance you encounter. If you pull harder, you will pull against more resistance.
Equipment for isokinetic exercises includes hydraulic equipment and some electronic resistance machines. Generally, the equipment provides resistance only when your muscles are performing concentric actions, though some electronic equipment also works during eccentric actions.You can get detailed feedback using isokinetic exercises. Also, they seem to work without producing much muscle soreness. However, the equipment is costly and not widely available.