2014 | OriginalPaper | Chapter
Effect of Different Visual Feedback Conditions on Maximal Grip-Strength Assessment
Authors : A. Chkeir, R. Jaber, D. J. Hewson, J. -Y. Hogrel, J. Duchêne
Published in: XIII Mediterranean Conference on Medical and Biological Engineering and Computing 2013
Publisher: Springer International Publishing
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Grip strength was assessed using the Grip-ball dynamometer for twenty-one subjects (11 men and 10 women). Five different verbal feedback conditions were tested: no visual feedback (NVF), non-quantified visual feedback (IVF), accurate visual feedback (CVF), and both over-estimated (OVF) and under-estimated (OVF) visual feedback. In the latter three conditions, subjects were presented with a target force to strive for. Significantly greater grip strength was observed for the CVF condition in comparison with the NVF and IVF conditions (6% increase for both comparisons, p<0.05). No other significant differences were observed. The magnitude of the differences suggests that visual feedback could be of clinical relevance when maximal grip strength testing is performed.