Isokinetic (speed-controlled) eccentric actions can be performed two ways-by overcoming a predetermined load and having the lever arm drive the extremity at the predetermined velocity, or by having the individual work against a passively moving lever arm at the predetermined velocity.
30Īnother use of isokinetics involves the evaluation of eccentric actions.
#Fitday isokinetic exercise software
The information collected from these machines is in a machine-specific format different machines handle the collected data through different software programs. 28,29 One of the primary advantages of this type of assessment is the ability to evaluate individual muscle patterns in a dynamic orientation while providing some inherent stability to the testing positions. Isokinetic exercise devices involve speed-controlled movements as the patient accelerates a lever arm to a predetermined maximal velocity and then moves through a range of motion and decelerates at the end of the range to the terminal position. Malone, in The Athlete's Shoulder (Second Edition), 2009 Isokinetic Assessment 34 The speeds selected for training should reflect the need to generate an appropriate loading force and the anticipated functional requirements of the patient. The maximal torque for concentric isokinetic contractions decreases with increasing velocity, 33 whereas the reverse is true for eccentric isokinetic contraction.
One unique concern of isokinetic training is the specificity of the velocity of training: velocity chosen for training should correspond to the velocity required for the ultimate (functional) activity. A particularly useful feature of several of these machines is a printout or graphic documentation of a subject's progress. The machine allows the individual to exert maximum force throughout the range of motion and provides a corresponding resistance to maintain the velocity of contraction. Isokinetic exercise requires special equipment, now produced by a number of manufacturers, to provide a constant velocity (measured in degrees per second) during muscle contraction. MOLDOVER, JOANNE BORG-STEIN, in The Physiological Basis of Rehabilitation Medicine (Second Edition), 1994 Isokinetic Training
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