Abstract
An inexpensive knee exerciser which closely approximates the performance of state-of-the-art isokinetic equipment has been constructed and a preliminary evaluation has been carried out. Unlike other exercisers, the lower limb angular velocity cannot be set a priori but, on the basis of patient performance it is possible to restrict limb velocity to within upper and lower bounds. The exerciser makes use of a shock absorber and lever mechanism which allow easy calibration of the system while elementary electronics and computer interfacing allow the measurement angle, velocity and torque in real time. A significant advantage of this exerciser over some isokinetic knee exercisers currently on the market is that limited arc rotation can be enforced. This type of limb restriction is important in many rehabilitation programs.
Highlights
SummaryAn inexpensive knee exerciser which closely approximates the perfor mance of state-of-the-art isokinetic equipment has been constructed and a preliminary evaluation has been carried out
Ever since isokinetic exercise was introduced by Thistle et all it has been widely used for research, clinical testing and rehabilitation, and has become an indispensable tool in the field of sports science
During late 1990 it came to the attention of South African physiotherapists that the Bioenergetics of Exercise Research Unit (BERU ) at the University of Cape Town (UCT) are “conside ring the development of an isokinetic unit which will be calibratable, give reproducible results over the entire range of movement and will measure torque and angle simultaneously in real time”
Summary
An inexpensive knee exerciser which closely approximates the perfor mance of state-of-the-art isokinetic equipment has been constructed and a preliminary evaluation has been carried out. A significant advantage of this exerciser over some isokinetic knee exercisers currently on the market is that limited arc rotation can be enforced. This type of limb restriction is important in many rehabilitation pro grams. Kan die rotasie snelheid van die onderste ledemaat nie a priori verstel word nie, maar 'n minimum en maksimum perk kan gehandhaaf word soos bepaal deur die pasient se krag. Die oefenmasjien maak gebruik van 'n skokbreker en hefboom meganisme wat kalibrasie vergemaklik. Hierdie masjien het ’n aansienlike voordeel bo vele ander isokinetiese knie oefenmasjiene in gebruik omdat die rotasie hoek van die ledemaat beperk kan word soos verlang.
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