Maintaining Active Lifestyle Through Pickleball: A Qualitative Exploration of Older Pickleball Players.

This study aimed to explore the experiences of older adults engaged in pickleball. In particular, we collected views from the USA Pickleball Association (USAPA) ambassadors to identify how their experiences facilitate successful aging. A qualitative case study was utilized to obtain naturalistic data. Purposive sampling was used to recruit a total of 15 USAPA ambassadors, all of whom were interviewed in person. Data were analyzed using interpretive thematic analysis, and four overarching themes were generated: (a) a new way to stay active, (b) pickleball is social, (c) an intergenerational pastime, and (d) reestablishing an identity through pickleball. The findings support the view that engaging in pickleball is a promising means of achieving a healthy life as a senior citizen. The participants maintained a physically and mentally active lifestyle through pickleball, and their commitment to this sport led to their engagement as ambassadors in their communities.

Geographically varying associations between mentally unhealthy days and social vulnerability in the USA.

OBJECTIVES: A growing body of research has incorporated the Social Vulnerability Index (SVI) into an expanded understanding of the social determinants of health. Although each component of SVI and its association with individual-level mental health conditions have been well discussed, variation in mentally unhealthy days (MUDs) at a county level is still unexplored. To systematically examine the geographically varying relationships between SVI and MUDs across the US counties, our study adopted two different methods: 1) aspatial regression modeling (ordinary least square [OLS]); and 2) locally calibrated spatial regression (geographically weighted regression [GWR]). STUDY DESIGN: This study used a cross-sectional statistical design and geospatial data manipulation/analysis techniques. Analytical unit is each of the 3109 counties in the continental USA. METHODS: We tested the model performance of two different methods and suggest using both methods to reduce potential issues (e.g., Simpson's paradox) when researchers apply aspatial analysis to spatially coded data sets. We applied GWR after checking the spatial dependence of residuals and non-stationary issues in OLS. GWR split a single OLS equation into 3109 equations for each county. RESULTS: Among 15 SVI variables, a combination of eight variables showed the best model performance. Notably, unemployment, person with a disability, and single-parent households with children aged under 18 years especially impacted the variation of MUDs in OLS. GWR showed better model performance than OLS and specified each county's varying relationships between subcomponents of SVI and MUDs. For example, GWR specified that 69.3% (2157 of 3109) of counties showed positive relationships between single-parent households and MUDs across the USA. Higher positive relationships were concentrated in Michigan, Kansas, Texas, and Louisiana. CONCLUSIONS: Our findings could contribute to the literature regarding social determinants of community mental health by specifying spatially varying relationships between SVI and MUDs across US counties. Regarding policy implementation, in counties containing more social and physical minorities (e.g., single-parent households and disabled population), policymakers should attend to these groups of people and increase intervention programs to reduce potential or current mental health illness. The results of GWR could help policymakers determine the specific counties that need more support to reduce regional mental health disparities.

FPGA Implementation of Efficient CFAR Algorithm for Radar Systems.

The constant false-alarm rate (CFAR) algorithm is essential for detecting targets during radar signal processing. It has been improved to accurately detect targets, especially in nonhomogeneous environments, such as multitarget or clutter edge environments. For example, there are sort-based and variable index-based algorithms. However, these algorithms require large amounts of computation, making them difficult to apply in radar applications that require real-time target detection. We propose a new CFAR algorithm that determines the environment of a received signal through a new decision criterion and applies the optimal CFAR algorithms such as the modified variable index (MVI) and automatic censored cell averaging-based ordered data variability (ACCA-ODV). The Monte Carlo simulation results of the proposed CFAR algorithm showed a high detection probability of 93.8% in homogeneous and nonhomogeneous environments based on an SNR of 25 dB. In addition, this paper presents the hardware design, field-programmable gate array (FPGA)-based implementation, and verification results for the practical application of the proposed algorithm. We reduced the hardware complexity by time-sharing sum and square operations and by replacing division operations with multiplication operations when calculating decision parameters. We also developed a low-complexity and high-speed sorter architecture that performs sorting for the partial data in leading and lagging windows. As a result, the implementation used 8260 LUTs and 3823 registers and took 0.6 µs to operate. Compared with the previously proposed FPGA implementation results, it is confirmed that the complexity and operation speed of the proposed CFAR processor are very suitable for real-time implementation.

Results From South Korean 2022 Para Report Card on Physical Activity for Children and Adolescents With Disabilities.

South Korea has developed its first Para Report Card on physical activity (PA) for children and adolescents with disabilities. Five national surveillance databases were used to evaluate PA indicators based on the benchmarks and grading rubric provided by Active Healthy Kids Global Alliance. Report card evaluation committees were invited to grade and assess the results using strengths, weaknesses, opportunities, and threats analysis. Five indicators (overall PA, D+; organized sports and PA, D-; active transportation, D-; physical fitness, D+; and government, A+) and one additional indicator (sleep, C-) were assigned a letter grade. The other five indicators were graded as incomplete. The Para Report Card revealed a significant gap between the behavioral-indicator grades (D- to D+) and the policy-indicator grade (A+), suggesting that government strategies and investment have not yet been translated into behavioral PA among children and adolescents with disabilities.

Body positivity through creative immersion: A qualitative study of women's pole dancing experiences.

Perceptions of body image are shaped by sociocultural influences and have been extensively examined in relation to physical and psychological health outcomes. Our study explores concepts of body image manifested through experiences of "flow" among women in South Korea who participate in pole dancing as a recreational physical activity. A qualitative research design incorporating the hermeneutic phenomenological approach revealed that pole dancing serves as a creative medium which embodies a central role in the lives of women of diverse cultural and socioeconomic backgrounds by promoting body appreciation, self-acceptance, improving physical health, enhancing confidence, providing a sense of enjoyment, and establishing social support. Our findings affirm the significance of leisure based physical activities that emphasize functionality and promote positive body image such as pole dancing may be an effective self-care strategy which can be incorporated in health interventions for women within community programs on an international scale.

Dispersive silicon-nitride optical phased array incorporating arrayed waveguide delay lines for passive line beam scanning.

As optical phased arrays (OPAs), used as solid-state beam scanning elements, swiftly stride towards higher efficiency and faster scanning speed, the line beam scanner is emerging as a viable substitute for its counterpart relying on point-beam-incorporated raster scanning. However, line-beam scanners require active phase shifters for beam scanning; thus, they consume more power and have complex device designs. This study proposes and demonstrates a dispersive silicon-nitride OPA that allows for passive wavelength-tuned steering of a line beam with an elongated vertical beamwidth. To steer the line beam passively covering the two-dimensional field of view, we deployed an array of delay lines with progressive delay lengths across adjacent channels. Furthermore, adiabatic tapers that allow precise effective array aperture adjustment are used as emitter elements to flexibly realize different vertical beamwidths. Combinations of different delay-length differences and taper tip-widths resulted in beam coverage (lateral × vertical) ranging from 6.3° × 19° to 23.8° × 40° by tuning the wavelength from 1530 to 1600 nm. The main lobe emission throughput was as small as - 2.8 dB. To the best of our knowledge, the embodied OPA is the first demonstration of a passive line beam scanner facilitating an adjustable beam coverage with quick operation and enhanced efficiency.

Leisure Activity, Leisure Satisfaction, and Hedonic and Eudaimonic Well-Being Among Older Adults With Cancer Experience.

Older adults with cancer experience are more likely to encounter a notable reduction of participation in physical and social leisure activities, which may threaten their overall well-being. The purpose of this study was to explore how specific types of leisure activities and leisure satisfaction were linked to hedonic and eudaimonic well-being among older adults who had experienced cancer. A nationally representative sample of 2,934 older adults with lifetime cancer experience was retained from the Health and Retirement Study. The results of regression analysis revealed that walking for 20 minutes was reported as the only type of leisure activity related to hedonic well-being for the oldest-old (85+ years old). The current study also found that TV watching was significantly, but negatively associated with eudaimonic well-being for the young-old (50-74 years of age). In contrast, using a computer was positively linked to hedonic and eudaimonic well-being among the young-old and old-old (75-84 years of age). The current study made a significant contribution to build the body of knowledge that the different age groups of older adults who had experienced cancer can enhance eudaimonic and hedonic well-being by participating in different types of leisure activities. Implications for further research are discussed.

Tearing down the barriers to exercise after mastectomy: a qualitative inquiry to facilitate exercise among breast cancer survivors.

OBJECTIVE: Proper exercise immediately after breast cancer surgery (BCS) may prevent unnecessary physical and psychological decline resulting from the surgery; however, patients' attitude, barriers and facilitators for exercise during this period have not been studied. Hence, this study aims to explore the barriers and facilitators of exercise among patients with breast cancer through multiple interviews immediately after surgery through 4 weeks after BCS. METHODS: We conducted three in-depth interviews of 33 patients with breast cancer within 1 month after BCS. RESULTS: We identified 44 themes, 10 codes and 5 categories from interview results. Physical constraints and psychological resistance were identified as the barriers to exercise, while a sense of purpose and first-hand exercise experience were identified as the facilitators of exercise. By conducting the interviews over the course of 4 weeks after surgery, we monitored patterns of changes in barriers and facilitators over time. Overall, our analyses identified that professional intervention based on the time since surgery and the physical state after BCS is essential. The intervention would counteract the overwhelming psychological resistance in the early weeks by developing a sense of purpose in the later weeks. CONCLUSIONS: We made suggestions for future research and exercise intervention programmes that can benefit breast cancer survivors based on the categories, codes and themes identified in this study.

Pickleball, Personality, and Eudaimonic Well-Being in Middle-Aged and Older Adults.

This study explored how personality and serious leisure activities, such as playing pickleball, contribute to eudaimonic well-being in middle-aged and older adults. Data were collected at pickleball events at the 2017 Huntsman World Senior Games from a convenience sample of 250 players aged between 50 and 91 years (M = 65.11, SD = 7.49). Of the five personality dispositions examined, conscientiousness (ß = 0.32, p < .001), neuroticism (ß = -0.22, p < .01), and openness to experience (ß = 0.18, p < .01) were discovered to be significant predictors of eudaimonic well-being. Serious leisure also contributed to eudaimonic well-being (ß = 0.28, p < .01). The findings of this study enhance the understanding of the behaviors exhibited by older adults and elucidate the positive impact exerted on eudaimonic well-being by personality and serious leisure.

"When I Sing, I Feel Peaceful": Experiences of Older Choral Singers From North Korea.

North Korean (NK) defectors fled their homeland and traveled thousands of miles in search of a better life. This qualitative study explored the experiences of older NK defectors who were part of a serious leisure choral group. In-depth interviews were conducted with eight NK defector members of a South Korean choir group, from which four central themes emerged: (a) conquering adversity and promoting health; (b) making good friends and having great adventures; (c) providing an arena to develop a new identity; and (d) developing proficiency through vigorous efforts. Involvement in choral singing as a serious leisure activity assisted the members in overcoming the various adversities they were facing, promoted their physical and mental health, and helped them develop comradery and new social identities.

Leisure and Social Supports in Relation to Positive Affect Among Older Adults.

The current study examined the extent to which leisure activities were related to different forms of social support and its association with positive affect. A secondary data analysis was employed using data drawn from the Health and Retirement Study (HRS) in 2014. The study sample was composed of 4,303 individuals whose ages ranged from 65 to 105 (M = 75.78, SD = 7.42; 57.8% females). Employing bootstrapping technique, the hypothesized relationship between leisure, social support, and positive affect was examined. Mediating effect of social support was also determined. Results indicated that leisure activity, social support, and positive affect were significantly associated, but the relationship varied. The study findings expanded our understanding of the divergent leisure paths to positive social support and emotional well-being of the older adults. Promoting diverse recreational settings is necessary in leisure interventions that can facilitate frequent and positive social exchanges in both in-home and out-of-home environments.

FPGA Implementation of an Efficient FFT Processor for FMCW Radar Signal Processing.

This paper presents the design and implementation results of an efficient fast Fourier transform (FFT) processor for frequency-modulated continuous wave (FMCW) radar signal processing. The proposed FFT processor is designed with a memory-based FFT architecture and supports variable lengths from 64 to 4096. Moreover, it is designed with a floating-point operator to prevent the performance degradation of fixed-point operators. FMCW radar signal processing requires windowing operations to increase the target detection rate by reducing clutter side lobes, magnitude calculation operations based on the FFT results to detect the target, and accumulation operations to improve the detection performance of the target. In addition, in some applications such as the measurement of vital signs, the phase of the FFT result has to be calculated. In general, only the FFT is implemented in the hardware, and the other FMCW radar signal processing is performed in the software. The proposed FFT processor implements not only the FFT, but also windowing, accumulation, and magnitude/phase calculations in the hardware. Therefore, compared with a processor implementing only the FFT, the proposed FFT processor uses 1.69 times the hardware resources but achieves an execution time 7.32 times shorter.

Older women's perspectives on leisure commitment for coping with chronic illnesses.

Commitment to leisure is recognized as an important aspect in understanding older adults' leisure behavior. Older adults' participation in Flow and Balance (FAB) is an exemplary instance of such engagement. We interviewed 11 older women who participate in FAB to explore how this experience contributed to coping with chronic illnesses. Our analysis revealed six central themes: (a) overcoming adversities; (b) investing personal effort; (c) stages of a leisure career; (d) health benefits and belongingness; (e) developing a special social world; and (f) centrality in life. Our findings emphasize the pivotal role of committed leisure in successful aging among older women.

Physical Activity Levels and Well-Being in Older Adults.

The objective of this study was to identify the interconnectedness of different intensity levels of physical activity and psychological (life satisfaction and positive affect) and physical (physical health) well-being. Participants were from the National Study of Midlife in the United States with assessments in 2004 and aged 25 to 74 living in the United States were included in the analyses. We conducted bivariate correlations to examine significant relationships among the study variables. In addition, after multicollinearity among the independent variable was checked, a series of hierarchical regression analyses with physical health, positive affect, and life satisfaction as criterion variables were conducted. The results showed that light physical activities were positively associated with physical health and life satisfaction in summer, whereas light physical activities and all dependent variables were positively correlated in winter. Furthermore, engaging in moderate physical activities was positively related only with physical health. Meanwhile, vigorous physical activities were not associated with life satisfaction, physical health, and positive affect in summer and winter.

Determinants of Engagement in Leisure-time Physical Activity - Dialogue with Senior Athletes.

This article explores the factors determining whether older adults engage in the Senior Games and related leisure-time physical activity through examining the adults' salient beliefs. We conducted 10 in-depth interviews with older adults who have participated in the Senior Games. Underpinned by the planned behavior theory's framework, we explored three types of beliefs: advantages and disadvantages (behavioral beliefs), social support and pressure (normative beliefs), and facilitators and impediments (control beliefs). Interview respondents were found to engage in the Senior Games and related physical activity to the extent that they associated various intangible advantages with the games and valued psychological satisfaction. They viewed their peers and families as supporting and approving of their engagement and recognized the physical capabilities required, and structural constraints necessary, to engage in the games and related activity. With these findings, pertinent beliefs can be combined with interventions designed to encourage leisure-time physical activities by older adults.

Life Satisfaction and Psychological Well-Being of Older Adults With Cancer Experience: The Role of Optimism and Volunteering.

Promoting health and well-being among individuals of advancing age is a significant issue due to increased incidence of cancer among older adults. This study demonstrates the benefits of expecting positive outcomes and participating in volunteer activities among older adults with cancer. We used a nationally representative sample of 2,670 individuals who have experienced cancer from the 2008 wave of the Health and Retirement Study. We constructed a structural equation model to explore the associations of optimism, volunteerism, life satisfaction, and psychological well-being. The level of optimism was a significant predictor of volunteerism, which in turn affected life satisfaction and psychological well-being. The level of engagement in volunteer activities was found to have significant path coefficients toward both life satisfaction and psychological well-being. Our study provides evidence that older adults who have experienced cancer and maintained a positive outlook on their lives and engaged in personally meaningful activities tended to experience psychological well-being and life satisfaction.

Internet use and well-being in older adults.

The Internet has become an important social context in the lives of older adults. Extant research has focused on the use of the Internet and how it influences well-being. However, conflicting findings exist. The purpose of the study was to develop an integrative research model in order to determine the nature of the relationships among Internet use, loneliness, social support, life satisfaction, and psychological well-being. Specifically, loneliness and social support were tested as potential mediators that may modify the relationship between Internet use and indicators of well-being. Data from the U.S. Health and Retirement Study (HRS) were used, and the association among Internet use, social support, loneliness, life satisfaction, and psychological well-being was explored. The sample consisted of 5,203 older adults (aged 65 years and older). The results indicated that higher levels of Internet use were significant predictors of higher levels of social support, reduced loneliness, and better life satisfaction and psychological well-being among older adults.

Exploratory examination of the relationship between acculturation and personal growth among Korean immigrants.

Korean immigrants are motivated to accept new cultural perspectives and/or transform their own cultural values into those of their new country. During this acculturation process, they encounter cultural differences, make adaptations, and thus may experience positive changes in social relationships, coping resources, personal strength, and cultural knowledge. The purpose of this study was to investigate the relationship between the dimensions of acculturation and personal growth. The results indicated that two dimensions of acculturation (e.g., self-control and collectivism), age, and length of stay were predictors of personal growth that involves social relationships, personal resources, life philosophy, and coping skills. This study suggests that high scores on two acculturation dimensions indicated lower acculturation, which predicts personal growth.

Health benefits of serious involvement in leisure activities among older Korean adults.

The existing literature suggests that serious engagement in leisure activities leads to happiness, life satisfaction, and successful aging among older adults. This qualitative study was used to examine the benefits of serious involvement in leisure activities among older Korean adults who were members of a sports club. Using an analytic data analysis, we identified three main themes associated with the benefits of serious engagement in leisure activities: 1) the experience of psychological benefits, 2) the creation of social support, and 3) the enhancement of physical health. These themes indicate that, through serious involvement in certain physical activities, participants gain various health benefits, which may contribute to successful aging.

The Exploration of Acculturation and Health Among Immigrants From Non-Eastern Cultures.

Literature on acculturation has been mainly focused on how acculturation influences the perception of health and well-being among immigrants from non-Western cultures. Conversely, we sought to explore immigration experiences associated with health and well-being among immigrants from non-Eastern cultures during their acculturation process. With a sample of 9 participants, we identified two major themes as outcomes of acculturation: psychological well-being and social benefits. We found that during acculturation, Western immigrants improved their sense of happiness, experienced reduced stress, and discovered meaning through activities, and that overall, acculturation facilitated personal growth. In addition, they developed a sense of cross-group friendships with Korean people and facilitated group cohesion within their own ethnic group. Further implications and future research avenues are discussed.