Search Results (792)

The purpose of this paper is to describe ongoing research on appropriate instrumentation and analysis techniques to characterize postural stability, postural agility, and dynamic stability, which collectively comprise the postural control spectrum. This study had a specific focus on using emerging sensors to develop protocols suitable for use outside laboratory or clinical settings. First, we examined the optimal number and placement of wearable accelerometers for assessing postural stability. Next, we proposed metrics and protocols for assessing postural agility with the use of a custom force plate-controlled video game. Finally, we proposed a method to quantify dynamic stability during walking tasks using novel frequency-domain metrics extracted from acceleration data obtained with a single body-worn IMU. In each of the three studies, a surrogate for instability was introduced, and the sensors and metrics discussed in this paper show promise for differentiating these trials from stable condition trials. Next steps for this work include expanding the tested population size and refining the methods to even more reliably and unobtrusively characterize postural control status in a variety of scenarios. Full article

Procedural content generation (PCG) algorithms have become increasingly vital in video games developed by small studios due to their ability to save time while creating diverse and engaging environments, significantly enhancing replayability by ensuring that each gameplay experience is distinct. Previous research has demonstrated the effectiveness of PCG in generating various game elements, such as levels and weaponry, with unique attributes across different playthroughs. However, these studies often face limitations in processing efficiency and adaptability to real-time applications. The current study introduces an improved spawn algorithm designed for 2D map generation, capable of creating maps with multiple room sizes and a decorative object. Unlike traditional methods that rely solely on agent-based evaluations, this constructive algorithm emphasizes reduced processing power, making it suitable for generating small worlds in real time, particularly during loading screens. Our findings highlight the algorithm’s potential to streamline game development processes, especially in resource-constrained environments, while maintaining high-quality content generation. Full article

Background/Objectives: This systematic and bibliographic review examines publications in the field of dementia and video game research from 2004 to 2023. The main objective is to assess developments and trends in video game technology for dementia care and detection. Methods: The PubMed database was the primary source for publications. PRISMA guidelines were applied to structure this review. Ten variables were defined, investigated, and split into three main categories: bibliographic, medical, and technical. Results: The results were synthesized using a quantitative approach to reduce bias through interpretation. Of 209 initial results, 77 publications have been included in the investigation. More studies focus on rehabilitation over assessment and detection of dementia. Clinical trials are typically conducted with limited participants. The most populated trials rarely enrol over 300 subjects. On average, around 38 subjects were enrolled in the trials. These studies are commonly supervised by a trainer or technology specialist, suggesting a technology gap in familiarity in the trial demographic. Conclusions: Most interventions assessed were custom-designed applications with a specific outcome, focusing on physical activity and cognitive exercises. As the first of its kind, this publication focuses on the technical aspects of applied technologies and development methods. Using video games to treat and detect patients with cognitive impairments like dementia can benefit healthcare professionals, caretakers, and patients. Full article

(1) Background: Growth in the use of video games has spurred innovations in the health sector, especially through exergames, which promote physical activity using interactive technologies like augmented reality. Exergames are shown to enhance exercise motivation and engagement, yet enjoyment remains inconsistent across studies. This pilot study aims to provide evidence on how different exergaming doses affect exercise heart rate, perceived exertion, adverse effects, and enjoyment in older adults. (2) Methods: A pilot randomized controlled trial was conducted to compare different doses of exercise through video games (13 vs. 28 min) in older adults living in a nursing home. A single bout of exergaming was provided to assess the outcomes: heart rate, rate of perceived exertion, physical activity enjoyment scale score, and adverse effects. (3) Results: Thirty-two older adults were recruited. This study revealed no significant differences in heart rate between groups (p = 0.1). There is a weak correlation between the rate of perceived exertion and the level of enjoyment (r_s = −0.193) and between the total time of the intervention and the incidence of adverse effects (r_s = 0.295). (4) Conclusions: The use of a higher dose of exergaming is effective in achieving moderate physical intensity. Also, the results suggest the intervention was generally well tolerated and enjoyed by older adults, with no serious adverse effects reported. Full article

The global VTuber market is experiencing rapid growth, with VTubers extending beyond mere content creators to be utilized in various fields such as social interaction, public relations, and health. VTubers have the potential to expand the existing content market and contribute to increasing economic and public value. This study aims to investigate the perception of VTubers in South Korea and to provide insights that can contribute to the global activation of the VTuber entertainment industry. For this purpose, unstructured data on VTubers from the past three years, during which interest in VTubers has significantly grown in South Korea, was collected. A total of 57,891 samples were gathered from Naver, Daum, and Google, of which 50 highly relevant data points between VTubers and users were selected for analysis. First, key terms such as ‘Broadcast’, ‘YouTube’, ‘Live’, ‘Game’, ‘Youtuber’, ‘Japan’, ‘Character’, ‘Video’, ‘Sing’, ‘Virtual’, ‘Woowakgood’, ‘Fan’, ‘Idol’, ‘Korea’, ‘Twitch’, ‘IsegyeIdol’, ‘Communication’, ‘Worldview’, ‘VTuberIndustry’, ‘Contents’, ‘AfricaTV’, ‘Nijisanji’, and ‘Streamer’ were extracted. Second, CONCOR analysis revealed four clusters: ‘Famous VTubers’, ‘Features of VTubers’, ‘VTuber Industry’, and ‘VTuber Platforms’. Based on these findings, the study offers various academic and practical implications regarding VTubers in South Korea and explores the potential for global growth in the VTuber industry. Full article

With the evolution of cellular networks and wireless-local-area-network-based communication technologies, services for smart device users have appeared. With the popularity of 4G and 5G, smart device users can now consume larger bandwidths than before. Consequently, the demand for various services, such as streaming, online games, and video conferences, has increased. For improved quality of experience (QoE), streaming services utilize adaptive bitrate (ABR) algorithms to handle network bandwidth variations. ABR algorithms use network bandwidth history for future network bandwidth prediction, allowing them to perform efficiently when network bandwidth fluctuations are minor. However, in environments with frequent network bandwidth changes, such as wireless networks, the QoE of video streaming often degrades because of inaccurate predictions of future network bandwidth. To address this issue, we utilize the gated recurrent unit, a time series prediction model, to predict the network bandwidth accurately. We then propose a buffer-based ABR streaming technique that selects optimized video-quality settings on the basis of the predicted bandwidth. The proposed algorithm was evaluated on a dataset provided by Zeondo by categorizing instances of user mobility into walking, bus, and train scenarios. The proposed algorithm improved the QoE by approximately 11% compared with the existing buffer-based ABR algorithm in various environments. Full article

Mobile gaming accounts for more than 50% of global online gaming revenue, surpassing console and browser-based gaming. The success of mobile gaming titles depends on optimizing applications for the specific hardware constraints of mobile devices, such as smaller displays and lower computational power, to maximize battery life. Additionally, these applications must dynamically adapt to the variations in network speed inherent in mobile environments. Ultimately, user engagement and satisfaction are critical, necessitating a favorable comparison to browser and console-based gaming experiences. While Quality of Experience (QoE) subjective evaluations through user surveys are the most reliable method for assessing user perception, various factors, termed influence factors (IFs), can affect user ratings of stimulus quality. This study examines human influence factors in mobile gaming, specifically analyzing the impact of user delight towards displayed content and the effect of gaze tracking. Using Pupil Core eye-tracking hardware, we captured user interactions with mobile devices and measured visual attention. Video stimuli from eight popular games were selected, with resolutions of 720p and 1080p and frame rates of 30 and 60 fps. Our results indicate a statistically significant impact of user delight on the MOS for most video stimuli across all games. Additionally, a trend favoring higher frame rates over screen resolution emerged in user ratings. These findings underscore the significance of optimizing mobile gaming experiences by incorporating models that estimate human influence factors to enhance user satisfaction and engagement. Full article

Pathfinding is the process of finding the lowest cost route between a pair of points in space. The aforementioned cost can be based on time, distance, the number of required turns, and other individual or complex criteria. Pathfinding in dynamic environments is a complex issue, which has a long history of academic interest. An environment is considered dynamic when its topology may change in real time, often due to human interference. Influence mapping is a solution originating from the field of video games, which was previously used to solve similar problems in virtual environments, but achieved mixed results in real-life scenarios. The purpose of this study was to find whether the algorithm could be used in real indoor environments when combined with information collected by remote sensors. Full article

Background: Enhancing working memory performance in cognitively and physically healthy individuals is a popular area of research. The results from a large number of studies have now been summarized in multiple meta-analyses. In these reviews, various training methods have been examined, including mindfulness training, adaptive working memory training, physical activity training, and video game training, to examine whether working memory capacity can be improved. This report aggregated the results of these meta-analyses using second-order meta-analytic approaches to ascertain the extent to which working memory functioning can be enhanced in healthy adults. Methods: A total of six meta-analyses of randomized controlled trials that compared working memory interventions to a control group were included in the analyses. These studies were identified after systematically searching three electronic databases: APA PsycInfo, ERIC and Medline. Collectively, the meta-analyses investigated the effects of cognitive programs, mindfulness, video games and physical activity on working memory. Only meta-analyses undertaken with healthy adults aged between 18 and 55 years were included in the report. Results: The results revealed an average improvement in working memory across the included studies compared to the control groups. The findings indicated a small yet significant enhancement in working memory, with a standardized mean difference of 0.335 (95% CI [0.223; 0.447], p < .001). Further analysis tests for superiority effects between the different working memory training programs revealed no significant differences between intervention effect sizes. Conclusion: Based on the findings, it can be concluded that the working memory capacity of healthy adults can be improved through training. However, the effect size is small, so the utility of this type of training in real-life improvements in cognition may be minimal. The evidence does not indicate that one type of working memory training is superior to another. Full article

What are the political, gender, and theological implications at stake when associating Jesus with modern combat and righteous violence? Jesus is rendered in combative form across media—i.e., live-action films and shorts, animated television, sketch comedy, graphic novels, and video games. This rendition occurs at a confluence of meaning, most immediately for the sake of generating comedy through juxtaposition (in this case, rendering the meek with a sword) and/or reaffirming Jesus’ prominent cultural value through an association with other popularly mediatized entities. Beyond these initial layers of significance, however, I argue that Jesus becomes associated with violence and brutality for the sake of de/legitimizing politically conservative ideologies with respect to Christianity and American exceptionalism, redeeming the crisis of “domesticated masculinity” and fortifying traditional masculine norms, and theologically reinstituting popular paradigms of low Christology. Ideological “manhood” remains traced to one’s ability to perform traditional gender roles (i.e., family provider, community protector, and father/procreator). To capture the discrepancy that Jesus of Nazareth, as presented in canonical gospels, largely concerns none of these roles, I analyze the hypermasculine Christ, and the various weapons he employs, as part of a popular genealogy of Western value systems and discourse. Though in this article I reference some examples of non-American media, I reserve my analysis and commentary for the stakes and implications of what it means for U.S. Americans to produce and consume such content. In short, I submit that popular America idolizes itself in the form—one amidst many—of a naïve, combative, and boorish Christ: an arrogant and, at times, narcissistic man with delusional views of the world made dangerous through invasive power and authority. Western entertainment has deemed the United States (through its fictional stand-ins) as morally failing yet still chosen. Within this logic, American Christians need not reform their ways as long as they cultivate evidence of their exceptionalism. Full article

To permit the collection of quantitative data on start, turn and clean swimming performances in any swimming pool, the aims of the present study were to (1) validate a mobile in-field performance analysis system (PAS) against the Kistler starting block equipped with force plates and synchronized to a 2D camera system (KiSwim, Kistler, Winterthur, Switzerland), (2) assess the PAS’s interrater reliability and (3) provide percentiles as reference values for elite junior and adult swimmers. Members of the Swiss junior and adult national swimming teams including medalists at Olympic Games, World and European Championships volunteered for the present study (n = 47; age: 17 ± 4 [range: 13–29] years; World Aquatics Points: 747 ± 100 [range: 527–994]). All start and turn trials were video-recorded and analyzed using two methods: PAS and KiSwim. The PAS involves one fixed view camera recording overwater start footage and a sport action camera that is moved underwater along the side of the pool perpendicular to the swimming lane on a 1.55 m long monostand. From a total of 25 parameters determined with the PAS, 16 are also measurable with the KiSwim, of which 7 parameters showed satisfactory validity (r = 0.95–1.00, p < 0.001, %-difference < 1%). Interrater reliability was determined for all 25 parameters of the PAS and reliability was accepted for 21 of those start, turn and swimming parameters (ICC = 0.78–1.00). The percentiles for all valid and reliable parameters provide reference values for assessment of start, turn and swimming performance for junior and adult national team swimmers. The in-field PAS provides a mobile method to assess start, turn and clean swimming performance with high validity and reliability. The analysis template and manual included in the present article aid the practical application of the PAS in research and development projects as well as academic works. Full article

Physical exercises are crucial for enhancing postural balance and muscle strength in children and adolescents with Down syndrome (DS). Virtual reality-based therapy (VRBT), which utilizes exergames, can favor performing physical activity. The aim of this review was to assess the effectiveness of VRBT in improving balance and muscular endurance in children and adolescents with DS. Since inception up to August 2024, we screened in PubMed Medline, SCOPUS, WOS, CINAHL, and PEDro studies that assessed the effectiveness of VRBT, compared to conventional therapy (CT) or usual care (UC), in improving balance and muscular endurance in DS. Methodological quality was assessed using the PEDro scale. Effect size in meta-analyses was calculated with the Cohen’s standardized mean difference (SMD) and its 95% confidence interval (95% CI). Nine studies providing data from 424 participants with good methodological quality (PEDro: 6.3 ± 1.2 points) were included. Our meta-analysis showed that VRBT is more effective than controls in increasing function (SMD = 1.22; 95% CI 0.64 to 1.81; p < 0.001), dynamic balance (SMD = −2.2; 95% CI −3.1 to −1.25; p < 0.001), and muscular endurance (SMD = 1.37; 95% CI 0.58 to 2.2; p < 0.001). This is the first meta-analysis to exclusively focus on children and adolescents with DS, demonstrating the effectiveness of VRBT in enhancing balance and muscular endurance. Full article

In this article, I analyse the function of supporting child-characters in contemporary videogames. I integrate Stephen Zimmerly’s typology of sidekicks in Young Adult literature with critical writing on the ‘Daddening’ of videogames, a coinage that refers to the rise in the number of videogames that centre on the filial bond between a father figure and a child. Bringing these ideas into conversation with each other allows me to expand Zimmerly’s sidekick typology to include the ‘Ludic Gateway’, the ‘Morality Certificate’, and the ‘Disciplinary Tool’. I explore each category in greater depth using two case studies: The Last of Us series (2012; 2014; 2020) and the God of War series (2008; 2018; 2022). These commercially successful, critically acclaimed franchises rely on young deuteragonists to humanize and redeem the gruff, aggressive, violent male player character. Furthermore, the child sidekicks also serve to regulate the player’s in-game behaviour by way of a parasocial relationship. Using a close reading approach, I demonstrate that the supporting child-characters function as meta-critical devices to discipline gaming communities and the video game medium itself. Full article

With the rapid development of multimedia services and smart devices, 360-degree video has enhanced the user viewing experience, ushering in a new era of immersive human–computer interaction. These technologies are increasingly integrating everyday life, including gaming, education, and healthcare. However, the uneven spatiotemporal distribution of wireless resources presents significant challenges for the transmission of ultra-high-definition 360-degree video streaming. To address this issue, this paper proposes a multi-layer non-uniform coding-based adaptive transmission method for 360° video (MNCATM). This method optimizes video caching and transmission by dividing non-uniform tiles and leveraging users’ dynamic field of view (FoV) information and the multi-bitrate characteristics of video content. First, the video transmission process is formalized and modeled, and an adaptive transmission optimization framework for a non-uniform video is proposed. Based on this, the optimization problem required by the paper is summarized, and an algorithm is proposed to solve the problem. Simulation experiments demonstrate that the proposed method, MNCATM, outperforms existing transmission schemes in terms of bandwidth utilization and user quality of experience (QoE). MNCATM can effectively utilize network bandwidth, reduce latency, improve transmission efficiency, and maximize user experience quality. Full article

Objectives: The study aimed to assess the impact of interactive video games (IVGs) as a form of physical activity (PA) on the quality of life. Methods: The study used a quality-of-life questionnaire (KIDSCREEN-10) and the HBSC questionnaire. In order to determine individual IVGs training parameters, an initial assessment of cardiorespiratory fitness level was performed, using the Cardio Pulmonary Exercise Test—Godfrey’s progressive protocol. Children in the intervention group participated in 12 interval training sessions using IVGs (Microsoft’s Xbox 360 S console with Kinect,). Results: The study included 21 patients (7–13 years old; 12 boys and 9 girls) treated for acute lymphoblastic leukemia (n = 13) and acute myeloid leukemia (n = 8). Before the IVGs, all children had insufficient PA levels (90% of children in the intervention group and 90.91% of children in the control group did not engage in any PA during the last 7 days). After the intervention, 80% of the children in the IVGs group undertook PA lasting at least 60 min a day, three times a week. They exhibited better well-being, a subjective feeling of improved physical fitness (p < 0.0001), a greater subjective sense of strength and energy (p < 0.0001), and less feeling of sadness (p = 0.0016) than the children from the control group (p = 0.0205). Conclusions: The results of our study confirmed that an attractive form of virtual game or sport is willingly undertaken by children undergoing cancer treatment, and has significant benefits in improving the quality-of-life parameters. There is a clear need to create specific recommendations and rehabilitation models for children with cancer. Full article