Effect of self-selected handgrip position on maximal handgrip strength.

Objective: To assess whether participants were able to select the handgrip position on a Jamar hand dynamometer with which the maximal handgrip strength could be delivered, while sitting and while standing.

Design: A criterion standard comparison study.

Setting: A university campus in the Netherlands.

Reliability of upper extremity tests measured by the Ergos work simulator: a pilot study.

The objective of this paper was to assess the reliability of functional capacity evaluation (FCE) tests of the upper extremity in Ergos from three perspectives: human performance (in terms of a learning effect); order of the physical intensity (force) of the subtests (intensity effect); and performance in time (time of day effect). An experimental within-subjects design was performed. Twelve healthy males/females were tested in the morning or in the afternoon.