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Abstract

The objectives of this study were to investigate the maximum holding times (MHT) of two highly stressful postures: standing in a forward bend position and performing elevated work in a standing position. The relationship between perceived exertion and MHT was also studied. Subjects were 44 young adults, age 20-29 years (25 female, 19 male). A test-retest design was used to establish reliability. Mean maximum holding times for forward bending and elevated work were respectively 14.51 and 16.18 min with large interindividual variations. A logarithmic rather than a linear relation between perceived exertion and performance is found. It is not possible to reliably predict MHTs from subjective data. Test-retest correlation is high (n = 19, r = 0.716 and 0.813, p < 0.001), and the scores did not differ significantly (p < 0.005), indicating a reliable procedure. The average holding times of the population studied are higher than expected from literature. Neither generic formulas, curve estimations, or predictions can reliably predict an individual's MHT. An individual's MHTs are best tested through performance based testing.

The reliability of WorkWell Systems Functional Capacity Evaluation: a systematic review

“…The first author applied the inclusion criteria to the full texts of the remaining 14 articles [12,19-31]. Four references were excluded: one [21] because it did not report any data on the reliability of specific items, two because the investigators tested FCE systems other than the WWS FCE [27,31], and one because relevant statistics were not reported [22]. Our search update in February 2014 identified two potentially relevant studies [32,33].…”