Abstract
Prohibitive costs technologically advanced dynamometers need not dissuade rehabilitationists from making useful assessments of musculo-skeletal performance in clinical settings. The use of simple strain-gauge measures of isometric torque is demonstrated using knee flexor-extensor capacities, dominance ratios, contralateral asymmetries and sexual dimorphism ratios. Functional restoration of knee-injured active young adults, using normative charts as a data base, is a cheap and feasible option.
Highlights
Few physiotherapists in South Africa can afford the expense of sophisticated isokinetic dynamometers for measuring muscular strength increments during rehabilitation, or the time to interpret the subtleties of muscle dynamics revealed by these technologies
Subject AB has about the same “distance” to go to bring right quadriceps and left hamstrings to within an acceptable approximation of their contralateral counterparts (Figure 6)
Summary
Few physiotherapists in South Africa can afford the expense of sophisticated isokinetic dynamometers for measuring muscular strength increments during rehabilitation, or the time to interpret the subtleties of muscle dynamics revealed by these technologies. Neither sex showed significant isometric torque differences between right and left limbs, for either extensors or flexors. Left-right differences were within 2%, for both sexes and for extensor and flexor torques.
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