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[Purpose] The purpose of this study was to evaluate pressure redistribution on the supporting area of healthy volunteers when using different cushions. [Subjects and Methods] Twenty healthy individuals ranging in age from 19–23 years old and 20 older adults age 60 or above participated in the study. All participants lived in urban communities in South Korea. Group differences according to gender, age, and cushion types were analyzed with one-way analysis of variance and post-hoc analysis. [Results] Statistically significant differences in peak pressure and mean pressure were identified between age, gender, and cushion types. Peak pressure and mean pressure were higher on firm surfaces and on the air cushion than other cushion types. The pressure ratio was lower when an air cushion was used in the buttock area and was higher when it was used under the thighs compared to that in other conditions. [Conclusion] This study showed that interface pressure can be distributed differently depending on what cushions are used. Therefore, when using seat cushions, individuals should seek advice to help them choose the appropriate cushion for their needs.

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[Purpose] The objective of this study was to investigate changes from resting of the evoked cortical activity when participants performed three levels of therapeutic activities. [Subjects and Methods] Twenty-five students participated in this study. Changes in the amplitude of 16 pairs of evoked potentials were compared for three different activities: adjunctive, enabling, and purposeful. Data were analyzed using descriptive statistics and one-way ANOVA. [Results] Significant differences were found among the selected three activities for the Alpha 1 waveform. The complexity hierarchy was confirmed by descriptive statistics, as well as analyses of the three brain regions: central position (motor) Beta 1; parietal lobes, Beta 2, and occipital lobes, Alpha 1. In each instance, purposeful activity was confirmed as the most complex activity, followed by enabling, and then adjunctive. [Conclusion] This study will provide rehabilitation professionals with valuable information regarding what type of activity they should choose for a correct level of therapeutic challenge when they work with patients to plan meaningful interventions.