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Abstract

Abstract:The purpose of this study was to examine the possible jumping gain when drop jumping from various dropping heights in people with mental impairment. For this purpose, 11 adults with mental impairment participated in this study. Participants performed drop jumps on a force plate from three dropping heights that represented 75%, 100% and 150 % of the maximum squat jump height. The following parameters were analyzed: Jumping height, contact time and vertical Ground Reaction Force. One-way analysis of variance with repeated measures was used for the statistical analysis. The obtained results showed that the different dropping height did not affect all the examined parameters. Additionally, all drop jump heights did not exceed the squat jump height. In conclusion, it seems that adult people with mental impairment were not able to procure jumping gain at the examined dropping heights. This finding requires further research concerning the mechanisms lagging behind this phenomenon.