Twenty respondents, with an average age of 68.9 ± 4.8 years old and predominantly male respondents, were recruited for this study (Table 1). The PA, SIS, and QoL scores were shown as means ± SD at baseline engagement, week 4, week 8, and week 12 for the follow-up sessions (Table 2). It revealed the baseline of a moderate level of GPAQ and the good levels of all domains of QoL. For SIS, hand function showed the lowest mean score (49.5 + 39.8); communication showed the highest mean score (94.6 ± 12.2), followed by memory (84.8 + 4.2), emotion (82.9 + 3.0), ADL (78.9 + 3.7), and mobility (75.6 + 16.0). As a result, the mean participation score was lower than the recovery score.
Step I: Development of working hypothesis. Coding and analysis began after interviewing the first six respondents (code A). The initial codes revealed PAs regarding their meanings based on living style, experience, and personal belief, which were barriers or facilitators of maintaining family relationships and socioeconomic survival. They reflected positive and negative perceptions of their currently practicing PAs concerning their QoL. These contributed to constructing the working hypothesis, as shown in Fig. 3.
The meanings of PAs were evolving since attending rehabilitation programs until returning to their daily life at home in the community. In the beginning, PA meant ‘stroke rehabilitation’, which was an intervention expected to cure their disability from stroke. Eventually, it meant activity training to improve their physical functioning and ability to perform ADL to avoid dependence on others. Later on, it meant the activities were accountable to their meaningful roles in the family and community, which required advanced mobility abilities such as walking, bicycling, modified motorcycling, engaging in traditional events, and participating as volunteers. Some other meanings came from their experience of a proud and successful life, expected future life goals, and religious beliefs.
Step II: Testing the working hypothesis. The second-round interview (code B) was done to test the working hypothesis. The initial codes were confirmed, and the meaning of the joyfulness of PA was added. Then, they were categorized into axial codes to which social participation was added meaning. It was ascertained that meaningful PAs related to social involvement commonly required a higher level of physical ability. Being in a physically dependent state, particularly when performing ADL, created negative feelings regarding family relationships. To live a dignified life, some PAs meant a little pocket money earned by themselves, whereas some meant the value of a friend’s relationship.
Finally, six categories of the meanings of PA were determined; the positive ones included independently doing ADL, working according to roles and contributions, and social participation to maintain personal existence and some particular value, while the negative ones were around being a burden, losing an accountable role, and unbalancing reciprocity relationships. They were regrouped into three core categories: initial, identity, and optimizing PAs (Fig. 4). The ‘initial PA’ included independently doing ADL and avoiding being a burden. The respondents tried practicing ADL and household ambulation to live independently. Thus, it would not burden the family members. Doing the initial PAs themselves helps mitigate the respondents’ embarrassment. The ‘identity PA’ refers to accountability in family roles such as household income generator, motherhood, and housekeeper. The ‘optimizing PA’ focused on participating and contributing to the society they were living in, which reassured their meaningful existence, value, and dignity in the community.
Step III: Adjusting working hypothesis. To further explore the meanings of PA and adjust the working hypothesis, the core categories and categories were sorted into four quadrants of the theory of everything (TOE)(14) (Table 3). The first quadrant (Q1) showed the personal meanings underpinned by the intention to do PA to improve his/her QoL, whereas the second one (Q2) showed an individual’s explicit behaviors in doing PAs. The third quadrant (Q3) revealed the collective or social values affecting the personal meanings of doing PAs, such as the value of family roles, relationships, social transactions, and contribution, while the fourth one (Q4) reflected the explicit services and supporting system, including rehabilitation and long-term care, public transportation, accessible environment, and legislations that assured and protected elderly’s rights. Using the TOE framework, the third cohort of six respondents was recruited and interviewed to better enlighten the core categories' relationship. The theoretical saturation of the working hypothesis was considered reached after the completion of step III. To enhance active aging by increasing the level of PA, the cognitive theories that supported the explanation of given meanings of the disabled elderly were also matched; direct incentive or motivation can serve for initial PA, whereas self-determination theory can be used for identity PA, and SLCT was appropriate for optimizing PA.
Step IV: Confirmation for saturation of working hypothesis. The fourth cohort of two respondents was additionally interviewed to re-confirm core categories and their relationships. It reassured that social welfare, such as public transportation and disability pension, was essential. Furthermore, an accessible environment was confirmed as enabling for doing all kinds of PA.
“I want to resume car driving since our community has no public transport, but my son did not allow it. I have to hire someone with a car to take me to the hospital, the market, and my friends’ houses.” (Code C217)
Thus, an integrative theoretical model of the meaningful PA of the hemiplegic elderly emerged (Fig. 5). There were three hierarchical meaningful of PA, with specific goals and underpinned cognitive theories. The initial PA aims for functional recovery, the identity PA aims to retain visibility and value recognition, and the optimizing PA expects to achieve fulfillment, enjoyment, and life satisfaction. The driving forces can come from internal motivation and external incentives, while the continuing social and cognitive learning platform needs a facilitator.
Dynamic Correlation of GPAQ, QOL-BREF, and SIS scores
Serial quantitative data collection and analysis were conducted in parallel. The additional insights were embedded within the grounded data collection and analysis process. Explicitly, it revealed the score improvement of all domains of SIS, especially in strength, ADL, mobility, hand function, participation, and the level of PA. Whereas the QoL was not much changed as compared with baseline data (Table 2), there was a significant correlation between GPAQ and the relationship domain of QoL (r = .547, p < 0.05) as shown in week 4 (Table 4). The significant correlations between GPAQ and some domains of SIS: communication in weeks 8 and 12, mobility in week 8, hand function in weeks 4, 8, and 12, and recovery in week 8 were also demonstrated (Table 5). The gradual improvement during the interviewing and grounded analysis process was observed only in the hand function and mobility domains.