Some considerations in the use of isometric, isoinertial and isokinetic strength models for predicting lifting capability

Abstract In order to predict lifting capacity of individuals, various mathematical models have been developed. These models have been based on several strength measurements of individuals including isometric, isokinetic and isoinertial strengths. A study was conducted to review and compare prediction models based on their performance. The results indicate that models based on dynamic (isokinetic and isoinertial) strengths are superior to models based on static (isometric) strength. Furthermore, different types of equipment used in measurement of strengths are discussed, and the advantages and disadvantages of each are cited. Their safety, accuracy, price and mobility are compared.

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