JMIR Serious Games最新文献

Background: Alzheimer disease (AD) is the leading cause of dementia worldwide. With aging populations and limited access to effective treatments, there is an urgent need for innovative markers to support timely preventive interventions. Emerging evidence highlights spatial cognition (SC) as a valuable source of cognitive markers for AD. This study presents NavegApp, a serious game (SG) designed to assess 3 key components of SC, which show potential as cognitive markers for the early detection of AD.

Objective: This study aimed to determine the content validity and usability perception of NavegApp across multiple groups of interest.

Methods: A multistep process integrating methodologies from software engineering, psychometrics, and health measurement was implemented to validate the software. Our approach was structured into 3 stages, guided by the software life cycle for health and the Consensus-Based Standards for the Selection of Health Status Measurement Instruments (COSMIN) recommendations for evaluating the psychometric quality of health instruments. To assess content validity, a panel of 8 experts evaluated the relevance and representativeness of tasks included in the app. In addition, 212 participants, categorized into 5 groups based on their clinical status and risk level for AD, were recruited to evaluate the app's digital ergonomics and usability at various stages of development. Complementary analyses were performed to identify group differences and to explore the association between task difficulty and user agreeableness.

Results: NavegApp was validated as a highly usable tool by both experts and users. The expert panel confirmed that the tasks included in the game were representative (Aiken V=0.96-1.00) and relevant (Aiken V=0.96-1.00) for measuring SC components. Both experts and nonexperts rated NavegApp's digital ergonomics positively, with minimal differences between groups (r_rb 0.08-0.29). Differences in usability perceptions were observed among participants with sporadic mild cognitive impairment compared to cognitively healthy individuals (r_rb 0.26-0.29). A moderate association was also identified between task difficulty and user agreeableness (Cramér V=0.37, 95% CI 0.28-0.54).

Conclusions: NavegApp is a valid and user-friendly SG designed for SC assessment, developed by integrating software engineering and psychometric evaluation methodologies. While the results are promising, further studies are warranted to evaluate its diagnostic accuracy and construct validity. This work outlines a comprehensive framework for SG development in cognitive assessment, emphasizing the importance of incorporating psychometric validity measures from the outset of the design process.

Background: Virtual reality (VR) active gaming is growing in popularity, but little is known about physical activity during gameplay. Two popular VR games are Gorilla Tag (Another Axiom Inc) and Beat Saber (Beat Games). Little is known about physical activity during these games in youth.

Objective: The purpose of this study was to investigate the enjoyment, intensity, and amount of physical activity while playing Gorilla Tag and Beat Saber in early adolescent youth.

Methods: Sixteen participants, 13 males and 3 females with an average age of 10.7 (SD 0.34) years, played 2 VR games (Gorilla Tag and Beat Saber) in a single session. Both games followed the same procedure: a maximum of 10-minute familiarization period, 5 minutes of rest, 15 minutes of gameplay, and 10 minutes of rest. Participants wore a heart rate monitor to track heart rate reserve (%HRR) and accelerometers on the wrist and waist to monitor time in sedentary activity, light physical activity, and moderate to vigorous physical activity of the arm and whole body. The Physical Activity Enjoyment Scale-Child Version (PACES) and ratings of perceived exertion (RPE) were completed after each game. Dependent t tests compared measures between games.

Results: The results revealed that average and maximum %HRR were significantly higher during Gorilla Tag than during Beat Saber, with heart rate-based physical activity intensity reaching light for Beat Saber and moderate for Gorilla Tag. Arm moderate to vigorous physical activity and whole-body moderate to vigorous physical activity and light physical activity were greater during Gorilla Tag than during Beat Saber. Arm and whole-body sedentary time were significantly lower during Gorilla Tag than during Beat Saber. Gorilla Tag and Beat Saber were rated as highly enjoyable. There were no differences between games for maximum (P=.352) or average (P=.362) RPE. Both games were rated as light intensity for average RPE (Gorilla Tag: mean 4.3, SD 1.9; Beat Saber: mean 4.7, SD 2.3) and moderate intensity for maximum RPE (Gorilla Tag: mean 5.4, SD 1.9; Beat Saber: mean 5.8, SD 2.4).

Conclusions: These results suggest that Beat Saber produced light-intensity physical activity and Gorilla Tag produced light- to moderate-intensity physical activity in early adolescent youth, with both games rated as highly enjoyable.

Background: The exponential growth of new technologies has resulted in the need for updating the field of education. From the educational point of view, there are some studies that have promoted the implementation of new technologies. These facts have raised the need to implement augmented reality in the university environment, especially among students of health sciences. The use of augmented reality can mean a new approach to teaching by teachers and better learning by students.

Objective: We aimed to analyze the degree of usability of two augmented reality applications and to compare the academic performance between the control group and the experimental group at the Universities of Cádiz and Málaga. The students at the University of Málaga used the Zapworks augmented reality software, while those at the University of Cádiz used the Aumentaty augmented reality software for their respective experimental groups. The secondary objective was to measure the relationships between all the studied variables.

Methods: This was a quasi-experimental design with a posttest as the only evaluation measure. We followed the SPIRIT (Standard Protocol Items: Recommendations for Interventional Trials) statement and the ethical and legal aspects of the Principles of the Declaration of Helsinki. An intervention was carried out using two augmented reality applications on the subject of General Procedures in Physiotherapy II at the Universities of Málaga and Cádiz.

Results: A total of 199 participants took part in the study. Demographic variables, ratings, and usability were assessed, followed by statistical analysis, with the results and their interpretation being described in the study. Significant differences (P<.001) were found in the ratings at both the universities. In addition, significant differences (P<.001) were found between the experimental group and the control group. Regarding the degree of usability in the univariate analysis, no significant differences were found (P=.049). A multiple regression analysis of the rating and usability was performed. The rating showed significant differences, with a beta of 1.4 (P<.001), and usability was also significant (P=.03) in favor of the Aumentaty group.

Conclusions: Significant differences were observed in those who used augmented reality compared to the control group, with higher values observed in the University of Cádiz. There are no correlations between the variables of usability and qualifications.

Background: Physical activity (PA) is vital for physical and mental health, but many college students fail to meet recommended levels. Artificial intelligence (AI)-powered gamification interventions through mobile app have the potential to improve PA levels among Chinese college students.

Objective: This study aimed to assess the feasibility and usability of an AI-powered gamification intervention.

Methods: A quasi-experimental study spanning 2 months was conducted on a sample of college students aged 18 to 25 years old from 18 universities in Beijing. PA data were recorded using the ShouTi Fitness app, and participant engagement was evaluated through surveys. User satisfaction was gauged through the System Usability Scale, while the intervention's feasibility was assessed through Spearman rank correlation analysis, Mann-Whitney tests, and additional descriptive analyses.

Results: As of July 2023, we enrolled 456 college students. In total, 18,073 PA sessions were recorded, with men completing 8068 sessions and women completing 10,055 sessions. The average PA intensity was 7 metabolic equivalent of energy (MET)s per session. Most participants preferred afternoon sessions and favored short-duration sessions, with men averaging 66 seconds per session and women 42 seconds. The System Usability Scale score for the intervention based on app is 65.2. Users responded positively to the integration of AI and gamification elements, including personalized recommendations, action recognition, smart grouping, dynamic management, collaborative, and competition. Specifically, 341 users (75%) found the AI features very interesting, 365 (80%) were motivated by the gamification elements, 364 (80%) reported that the intervention supported their fitness goals, and 365 (80%) considered the intervention reliable. A significant positive correlation was observed between the duration of individual PA and intervention duration for men (ρ=0.510, P<.001), although the correlation was weaker for women (ρ=0.258, P=.046). However, the frequency of PA declined after 35 days.

Conclusions: This study provides pioneering evidence of the feasibility and usability of the AI-powered gamification intervention. While adherence was successfully demonstrated, further studies or interventions are needed to directly assess the impact on PA levels and focus on optimizing long-term adherence strategies and evaluating health outcomes.