## 5 Discussion, Conclusions, and Future Work
### Discussion of Results
#### 5.1.2 Innovation Effectiveness in Intergenerational Interaction Design  
This study achieved significant results, in terms of innovative intergenerational interaction design through systematic empirical studies. As shown in Table 4, the intergenerational interaction group's system usability score (\(92.12\pm 2.31\)) showed a 14.15% improvement over that of the elderly-only group (\(80.70\pm 2.45\)) (\(p<0.001\), [PERSON]'s d = 1.24). These findings not only validate [PERSON] and [PERSON]'s [8] assertions about the importance of social connections in preventing cognitive decline, but also highlight the key role of social facilitation effects in enhancing elderly users' technology usage motivation. Particularly in terms of the learnability metric, the intergenerational group (\(94.12\pm 1.98\)) showed a 5.46% improvement over the elderly-only group (\(89.25\pm 2.12\)) (\(p<0.01\)), supporting [PERSON] and [PERSON]'s [34] research findings on intergenerational technology's learning patterns.  
A further analysis of the intergenerational interaction benefits revealed three significant findings. Firstly, regarding the learning facilitation effects, our qualitative observations showed that cross-generational learning processes effectively reduced elderly users' technology anxiety, supporting [PERSON] and [PERSON]'s [35] proposed intergenerational technology acceptance model. Secondly, regarding the social facilitation effects, this study found that group contexts demonstrated higher participation and sustained usage motivation compared to individual use, reflected in the high scores in the social interaction dimension. Thirdly, regarding the health promotion effects, the 12-week tracking data showed that the participants' coordination was improved by 23.5%, with continuously increasing activity participation, confirming the system's benefits, in terms of health promotion.  
The innovation in intergenerational interaction design was specifically manifested in three breakthrough aspects. In terms of interface design, using pillows as interaction media successfully lowered the usage barriers, enabling natural interactions between different generations. In terms of game design, the dual-mode design, incorporating both competitive and collaborative elements (as shown in Figure 5), effectively promoted intergenerational interaction and emotional exchange. In terms of functional design, the system's adaptive design allowed users with various physical and mental conditions to participate successfully, reflected in the high usability scores across the different user groups.  
Notably, the research results support [PERSON] et al.'s [14] theoretical perspective on intergenerational relationships in the 21 st century. Technology products can indeed become effective mediators of intergenerational connections, rather than sources of generational gaps. This finding has important implications for elderly technology development: intergenerational interaction should not be viewed as an additional design consideration but as a core strategy to enhance elderly users' technology acceptance. Through appropriate design, technology products can effectively strengthen intergenerational connections while improving elderly users' motivation to use technology.