volume 34, issue 4, P321-336 2003
DOI: 10.1076/brhm.34.4.321.26229
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Abstract: In this review various sources of measurement error are considered in the context of investigating rhythms in human performance. The reproducibility of performance in any exercise task is an important factor if rhythmic variations are to be detectable. Available physical performance tests range from simple efforts lasting only a couple of seconds to sustained endurance exercise. When measuring muscle strength, the options include static or dynamic actions, slow or fast movements, voluntary or electrically sti…

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