Quantifying repetitive hand activity for epidemiological research on musculoskeletal disorders - Part I: Individual exposure assessment

Article Abstract:

An exposure measurement approach is described for quantifying repetitive hand activity of individual workers in a prospective epidemiological study on musculoskeletal disorders. The exposure assessment approach seems to be able to quantify force level and repetitiveness of hand activities, and that individual exposure assessment is important in this research as there are interactions between the individual subjects and the measured parameters, and these interactions may vary between exposure parameters.

Manual work

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Muscle fatigue and endurance during repetitive intermittent static efforts: Development of prediction models

Article Abstract:

A description of the relationships between static intermittent efforts and muscle endurance and fatigue is presented. The results showed influence of contraction level and duty cycle on the majority of fatigue measures used, while cycle time tended to affect electromyography (EMG) spectral measures, and good correspondence was generally found between discomfort rating and other measures of fatigue, suggesting the usefulness of this measure for rapid assessments of local fatigue in the workplace.

Muscle strength, Work, Work (Labor)

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Muscle fatigue during intermittent isokinetic shoulder abduction: Age effects and utility of electromyographic measures

Article Abstract:

A study of differences in muscle fatigue in relation to age during submaximal dynamic efforts, in young and old participants showed age-related fatigue resistance in older group at higher effort level.

Health aspects, Aging, Electromyography, Aging (Biology), Strengthening exercises

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