Psychometric property and measurement invariance of perceived benefits and barriers of physical activity in Chinese adolescents.

Background: The perceived benefits and barriers to physical activity play crucial roles in determining daily physical activity levels. However, previous studies have employed tools lacking adequate validation, leading to inconsistent conclusions about the impact of these two factors. Therefore, this national, population-based study was conducted to assess the psychometric properties, measurement invariance, and predictive validity of the Chinese versions of the perceived benefits (C-PBEPA) and barriers to physical activity (C-PBAPA) scales. Methods: The final sample (N = 2942, 49.3 % for boys) was randomly split into two subsamples. The first subsample was used for exploratory factor analysis and the second subsample was used for confirmatory factor analysis. Measurement invariance across gender and age groups were examined. Structural equation models were developed to examine the predictive validity of the revised C-PBEPA and C-PBAPA on moderate to vigorous PA. Results: The results showed that both scales were unidimensional, had excellent model fit (e.g., X 2/df < 3, CFI >0.9, RMSEA <0.06) and demonstrated convergent validity. Findings also revealed lack of scalar invariance for C-PBAPA between preadolescents and adolescents' groups (ΔCFI >0.01) and supported the predictive validity of both scales (p < 0.001). Conclusion: The study demonstrated that the revised C-PBEPA and C-PBAPA are valid scales for measuring Chinese adolescents' perceived benefits and barriers to PA.

Peer Support and Adolescents' Physical Activity: The Mediating Roles of Self-Efficacy and Enjoyment.

Objective: The present study aimed to contrast the mediating magnitude of self-efficacy and enjoyment connecting peer support and adolescents' physical activity (PA). Methods: Participants were 9th-12th grade students ( N = 409; 56.5% boys) who were randomly chosen from six public schools located in Fuzhou city in southeast China. The bootstrapping method in structural equation modeling was conducted to examine the direct and indirect effects of peer support on adolescents' PA. Results: Peer support did not directly impact PA. Rather, peer support indirectly influenced PA through either self-efficacy or enjoyment, with self-efficacy demonstrating a stronger mediating effect. Additionally, we found a significant serial mediating effect with enjoyment, and self-efficacy sequentially mediated the relationship between peer support and PA. Conclusion: The findings highlight the role of self-efficacy and enjoyment as mediators connecting peer support and PA. Self-efficacy seems to be more important, as it demonstrated a significantly greater mediating effect.

Do Physical Activity Patterns Across the Lifecourse Impact Birth Outcomes?

The significant impact of physical activity during, or immediately prior to pregnancy on a range of pregnancy and birth outcomes has been established. However, lifecourse theory posits that the antecedents of poor outcomes occur across a larger trajectory of time. The objective of this study was to examine whether physical activity patterns over the lifecourse impact birth outcomes. The sample (n = 1,713) was derived from Waves I, III, and IV of the National Longitudinal Study of Adolescent Health and limited to women who had their first, singleton live birth between Waves III and IV; respondents who had missing data were excluded. Outcome variables included preterm birth (<37 weeks) and low birth weight (<5.5 pounds). Physical activity was categorized as follows: long-term physically active (active at Waves I and III); short-term physically active (active at only Wave I or III); and not physically active (not active at Waves I and III). Survey-weighted logistic regression controlled for socio-demographic and established predictors of poor birth outcomes. Women categorized as long-term physically active had lower rates of preterm births (12.2 vs. 18.7 %) and low birth weight (9.1 vs. 11.1 %) compared to women categorized as not physically active. However, when controlling for covariates, adjusted analysis revealed that physical activity consistency only predicted preterm birth (aOR = 0.55, 95 % CI = 0.33-0.91). Findings suggest that physical activity patterns across the lifecourse may decrease risk of preterm birth. Implications include efforts supporting patterns of physical activity over longer periods of time prior to pregnancy.

Community level predictors of physical activity among women in the preconception period.

Although physical activity is a key behavior targeted during the preconception period given its significant impact on pregnancy/birth outcomes and psychological well-being, few women meet national guidelines. While intrapersonal factors influencing physical activity among this population have been studied, community factors remain unexplored. The objective of this study was to examine community level predictors of physical activity among preconception women. Data from Add Health were limited to women (Wave III; age 18-28; n = 7,596) and excluded respondents who were pregnant, physically disabled, and missing data. The outcome variable was ≥5 instances of moderate-vigorous physical activity (MVPA) in 1 week. Community predictor variables included neighborhood-level structural and social determinants (e.g., socio-demographic composition; landscape diversity; urbanization; access to resources; crime; vehicle availability). Multilevel logistic regression modeling was used to estimate the odds of engaging in ≥5 instances of MVPA. Few women (26 %) reported ≥5 instances of MVPA in 1 week. Adjusted multilevel analysis revealed women in the preconception period were more likely to report high MVPA when living in communities with larger population densities (OR 1.34, 95 % CI 1.02-1.77) and median household income greater than $50,000 (OR 1.33, 95 % CI 1.06-1.66). Additionally, a significant inverse trend was found between high MVPA and proportion of the community without a high school diploma. Findings suggest that neighborhood composition may have an impact on preconception physical activity status. Implications include increased efforts targeting community conditions for facilitating physical activity; ultimately, improving health among women and subsequent offspring.

Physical activity on the mental health of children and adolescents during COVID-19 pandemic-induced school closures-A systematic review.

PROPOSE: To review published Physical Activity (PA) on the Mental Health of Children and Adolescents aged 5 to 18 years during COVID-19 pandemic-induced school closures. METHODS: From the database creation to April 2022, 10 databases are retrieved, with 4427 records filtered, 14 included in this research. The research takes Agency for Healthcare Research and Quality (AHRQ) evaluation standards. RESULTS: The thesis selects 14 studies from 6 countries, involving 400009 children and adolescents. These studies happened during the lockdown of COVID-19 (from December 2019 to April 2021). During the lockdown of COVID-19, schools were closed, which was considered part of a more extensive lockdown. Schools were closed for 1 to 4 weeks. There were 10 high quality studies (71.4%) and 4 medium quality studies (28.6%). 4 studies report that the pandemic reduces the time of PA but increases the time of watching screen and sitting. 10 studies (71.4%) identify that PA is positive for the mental health, because it helps reduce mental symptoms to a certain extent, especially anxiety, depression, and emotional disorders. 5 studies show that PA may not improve the mental health of children and adolescents under 12 during the pandemic. 4 studies indicate that the influence of PA on mental health of children and adolescents is determined by the amount of activity, including the extent, intensity, frequency, and duration, etc. CONCLUSIONS: In this narrative synthesis of reports from the class suspension period, reports that PA has a improve on the mental health of children and adolescents to a certain extent. it is found that PA may be helpful in reducing mental health symptoms of children and adolescents who are influenced by class suspension because of the COVID-19 pandemic. Therefore, stakeholders of the mental health of children and adolescents around the world should recommend PA because it is a practicable and beneficial way for long-term mental support.

Validation of Physical Activity Correlates Questionnaire from Social Ecological Model in College Students.

More than 50% of Chinese college students rarely engage in any type of physical activity (PA). The literature shows several issues in college students' health due to lack of PA. Promoting college students' PA participation across the country has become a challenging task. This study aims to create a questionnaire into the correlates that affect Chinese college students' engagement in leisure time PA. We first determined the factor structure of college students' PA engagements. Then, we tested and verified the reliability and validity of the factor structure of the questionnaire. The Chinese college students' PA correlates questionnaire was designed according to the Social Ecological Model. Exploratory factor analysis (EFA) extracted all the included items, whereas confirmatory factor analysis (CFA) verified the validity of the model. We recruited 1290 college students to complete the questionnaire. A second-order structural model was constructed. Specifically, the first-order included individual, social, and environmental as dimensions, while the second-order had interest, media, social support, traditional culture, facilities, and environment as factors. The six factors have polymerized 22 items. The model demonstrated a good fit (X2/df = 1.4; CFI = 0.98; GFI = 0.94; RMSEA = 0.02; SRMR = 0.05). In conclusion, the newly established questionnaire of college students' PA correlates is reasonable, and the results of factors reliabilities and model fit are acceptable.

Learning Science-Based Fitness Knowledge in Constructivist Physical Education.

Teaching fitness-related knowledge has become critical in developing children's healthful living behavior. The purpose of this study was to examine the effects of a science-based, constructivist physical education curriculum on learning fitness knowledge critical to healthful living in elementary school students. The schools (N = 30) were randomly selected from one of the largest school districts in the United States and randomly assigned to treatment curriculum and control conditions. Students in third, fourth, and fifth grade (N = 5,717) were pre- and posttested on a standardized knowledge test on exercise principles and benefits in cardiorespiratory health, muscular capacity, and healthful nutrition and body flexibility. The results indicated that children in the treatment curriculum condition learned at a faster rate than their counterparts in the control condition. The results suggest that the constructivist curriculum is capable of inducing superior knowledge gain in third-, fourth-, and fifth-grade children.

Learners' motivational response to the Science, PE, & Me! curriculum: A situational interest perspective.

BACKGROUND: The Science, PE, & Me! (SPEM) curriculum is a concept-based physical education curriculum that offers students coherent educational experiences for constructing health-related fitness knowledge through movement experiences. The purpose of this study was to evaluate students' motivational response to the SPEM curriculum from the situational interest perspective. METHODS: The study used a cluster randomized controlled design in which 30 elementary schools in one of the largest metropolitan areas in the eastern United States were randomly assigned to an experimental or comparison condition. Although all students in the 3rd, 4th, and 5th grades in the targeted schools were eligible to participate in the study, a random sample of students from the experimental (n = 1749; 15 schools) and comparison groups (n = 1985; 15 schools) provided data. Students' motivational response to the SPEM curriculum or comparison curriculum was measured using the previously validated Situational Interest Scale-Elementary. Data were analyzed using structural mean modeling. RESULTS: The results demonstrated that the experimental group (as reference group) showed significantly higher enjoyment (z = -2.01), challenge (z = -6.54), exploration (z = -12.195), novelty (z = -8.80), and attention demand (z = -7.90) than the comparison group. CONCLUSION: The findings indicate that the SPEM curriculum created a more situationally interesting context for learning than the comparison physical education curriculum.

Health-related fitness knowledge growth in middle school years: Individual- and school-level correlates.

BACKGROUND: Health-related fitness knowledge (HRFK) has been an essential concept for many health and physical education programs. There has been limited understanding and longitudinal investigation on HRFK growth. This longitudinal study examined HRFK growth and its individual- and school-level correlates in middle school years under 1 curriculum condition: Five for Life. METHODS: Participants were 12,044 students from 47 middle schools. Data were collected at both individual/participant and school/institution levels. Individual-level variables included gender, grade, and HRFK test scores. School-level variables included percentage of students receiving free and reduced meals (FARM), student-to-faculty ratio for physical education, and school academic performance (SAP). We used hierarchical linear modeling to examine HRFK 3-year growth in relation to individual- and school-level correlates. RESULTS: The average HRFK score at 6th grade for females was 42.81% ± 1.32%. The predicted HRFK growth was 17.06% ± 1.02% per year, holding other factors constant. A 1-standard deviation increase in FARM correlated with a 14.68%-point decrease in predicted test score (p = 0.02). A 1-standard deviation increase in SAP was associated with an 11.90%-point increase in HRFK score. Males had a significantly lower growth rate than females during the middle school years (0.78%/year, p = 0.02). CONCLUSION: The result showed that both individual- and school-level variables such as gender, FARM, and SAP influenced HRFK growth. Educators should heed gender differences in growth curves and recognize the correlates of school-level variables.

The Effects of Active Videogame Feedback and Practicing Experience on Children's Physical Activity Intensity and Enjoyment.

OBJECTIVE: The study aims to explore the effects of receiving active videogame (AVG) feedback and playing experience on individuals' moderate-to-vigorous physical activity (MVPA) and perceived enjoyment. MATERIALS AND METHODS: This was a within-subject design study. The participants included 36 (n = 15 and 21 for boys and girls, respectively) fourth graders enrolled in a rural elementary school in southern Georgia area. The experiment lasted for 6 weeks with each week including three sessions. The participants were assigned in either front row (sensor feedback) or back row (no sensor feedback) during practice, which was alternated in different sessions. Two different dance games were played during the study with each game implemented for 3 weeks. The MVPA was measured with GT3X+ accelerometers. Physical activity (PA) enjoyment was assessed after the completion of the first two and last two sessions of each game. A repeated one-way ANOVA (analysis of variance) was used to examine the effects of AVG feedback and game on MVPA. A repeated one-way MANOVA (multivariate analysis of variance) was conducted for each game to examine the effects of experience and AVG feedback on enjoyment and MVPA. RESULTS: No effects of AVG feedback were found for MVPA or enjoyment (P > 0.05). The effects of experience on MVPA were found for Just Dance Kids 2014 with experience decreased MVPA (P < 0.05). CONCLUSION: Students who practiced dance AVG without receiving feedback still demonstrated positive affection and accumulated similar MVPA than when practicing while receiving feedback. Experience for certain dance games tends to decrease PA intensity.

Effects of Active Videogame and Sports, Play, and Active Recreation for Kids Physical Education on Children's Health-Related Fitness and Enjoyment.

OBJECTIVE: The purpose of the study was to compare the effects of a Kinect active videogame (AVG) and the Sports, Play, and Active Recreation for Kids (SPARK) intervention in improving children's health-related fitness and physical activity (PA) enjoyment. MATERIALS AND METHODS: A total of 65 students from both third and fourth grade in a rural elementary school participated in the study. The third graders (N = 29, mean age = 9.1 years, 10 boys, mean body mass index [BMI] = 20.1) were assigned to a SPARK physical education group, while the fourth graders (N = 36, mean age = 10.2 years, 15 boys, mean BMI = 20.3) were enrolled in the Kinect AVG group. The intervention lasted for 6 weeks, with each week including three practice sessions (∼40 minutes per session). All participants were measured on their health-related fitness by testing their performance in the 15-m Progressive Aerobic Cardiovascular Endurance Run (PACER), curl-ups, and push-ups both before and after the interventions. Participants' PA enjoyment was measured immediately after the first and last session's practice. Various ANCOVA tests were conducted to analyze the intervention effects on the changes of health-related fitness performances and enjoyment while controlling for baseline values, gender, and BMI. Various MANOVA tests were used to examine the intervention effects on PA levels during three practice sessions. RESULTS: Participants in AVG group had greater improvement in 15-m PACER test (P < 0.001), as well as PA enjoyment (P < 0.05), than those in SPARK group. The AVG group generated higher light PA and lower sedentary time for three (P < 0.05 to P < 0.001) and two sessions (P < 0.05 and P < 0.001), respectively. In addition, the AVG group accumulated higher moderate-to-vigorous physical activity (MVPA) for the first session (P < 0.01), while the SPARK group generated higher MVPA for the third session (P < 0.001). No MVPA difference was found between groups for another session. CONCLUSION: A 6-week (40 minutes × 3 times/week) program using AVG could be an effective strategy in improving children's cardiorespiratory fitness while maintaining PA enjoyment.

Effects of Physical Activity on Motor Skills and Cognitive Development in Early Childhood: A Systematic Review.

OBJECTIVE: This study synthesized literature concerning casual evidence of effects of various physical activity programs on motor skills and cognitive development in typically developed preschool children. METHODS: Electronic databases were searched through July 2017. Peer-reviewed randomized controlled trials (RCTs) examining the effectiveness of physical activity on motor skills and cognitive development in healthy young children (4-6 years) were screened. RESULTS: A total of 15 RCTs were included. Of the 10 studies assessing the effects of physical activity on motor skills, eight (80%) reported significant improvements in motor performance and one observed mixed findings, but one failed to promote any beneficial outcomes. Of the five studies investigating the influence of physical activity on cognitive development, four (80%) showed significant and positive changes in language learning, academic achievement, attention, and working memory. Notably, one indicated no significant improvements were observed after the intervention. CONCLUSIONS: Findings support causal evidence of effects of physical activity on both motor skills and cognitive development in preschool children. Given the shortage of available studies, future research with large representative samples is warranted to explore the relationships between physical activity and cognitive domains as well as strengthen and confirm the dose-response evidence in early childhood.

Correlates of long-term physical activity adherence in women.

BACKGROUND: Little is known about the factors that may influence women's adherence to moderate-to-vigorous physical activity (MVPA) using longitudinal data. The purpose of this study was to examine the correlates of long-term physical activity (PA) participation among women. METHODS: Female data from Waves I, III, and IV (n = 5381) of the National Longitudinal Study of Adolescent to Adult Health (Add Health) were used for the analysis. The outcome of PA adherence was operationalized as (1) consistently physically active (at least 5 instances during the week) in both Waves III and IV (during adulthood), and (2) consistently not physically active or only physically active in either Wave III or IV. Predictor variables from Wave I (during adolescence) included race/ethnicity, PA level, self-perception of being physically fit, general health status, attempt to change weight, parents' income level, parents' education, well-being, depression, access to PA resources, days of physical education (PE), and grade level. Crude and adjusted logistic regression models were utilized to estimate the adjusted odds ratio (aOR) and 95% confidence interval (95%CI) for the outcome variable. RESULTS: PA levels during adolescence significantly predicted PA adherence (aOR = 1.67, 95%CI: 1.35-2.05). Additionally, wanting to lose weight (aOR = 1.49, 95%CI: 1.20-1.85), using fitness center in the neighborhood (aOR = 1.29, 95%CI: 1.05-1.58), and having 5 days of PE a week (aOR = 1.48, 95%CI: 1.09-2.02) were significant predictors. Women who did not perceive being physically fit (aOR = 0.65, 95%CI: 0.44-0.95) and Black, non-Hispanics (aOR = 0.60, 95%CI: 0.44-0.82) were less likely to adhere to PA. CONCLUSION: The findings suggested that physically active adolescents were more likely to become active adults. Future research should address interventions (e.g., PE program, community resources) that may promote lifetime PA in women, with the goal of decreasing morbidity and mortality.

Impact of an active educational video game on children's motivation, science knowledge, and physical activity.

BACKGROUND: Active educational video games (AVGs) appear to have a positive effect on elementary school students' motivation leading to enhanced learning outcomes. The purpose of this study was to identify the effectiveness of an AVG on elementary school students' science knowledge learning, physical activity (PA) level, and interest-based motivation. METHODS: In this randomized controlled study, 53 elementary school students were assigned to an experimental condition or a comparison condition. The experimental condition provided an AVG learning environment, whereas the comparison condition was based on sedentary educational video games. RESULTS: The results of repeated measures analysis of variance (ANOVA) on the knowledge test showed that students in both groups performed better on the post-test than they did on the pre-test (p < 0.001, η 2 = 0.486), and their post-test scores did not differ significantly. The experimental condition provided a more active environment since the students' average heart rates (HRs) were in the Target-Heart-Rate-Zone (HR = 134 bpm), which was significantly higher than the average HR (103 bpm) from the comparison condition (t = 7.212, p < 0.001). Students in the experimental condition perceived a higher level of situational interest than their counterparts in the comparison group (p < 0.01, and η 2 = 0.301). CONCLUSION: These results suggest that AVGs benefit children more in terms of PA and motivation than traditional video games by providing an enjoyable learning experience and sufficient PA.

Metabolic Equivalents of Selected Sedentary and Physical Activities in Chinese Youth.

BACKGROUND: This study determined the metabolic equivalents (METs) of several activities typically performed by Chinese youth. METHODS: Thirty youth (12 years) performed 7 activities that reflected their daily activities while Energy Expenditure (EE) was measured in a metabolic chamber. RESULTS: METs were calculated as activity EE divided by participant's measured resting metabolic rate. A MET value ranging from 0.8 to 1.2 was obtained for sleeping, watching TV, playing computer games, reading and doing homework. Performing radio gymnastics had a MET value of 2.9. Jumping rope at low effort required 3.1 METs. Except for watching TV, METs for other activities in this study were lower than Youth Compendium values. CONCLUSIONS: The results provide empirical evidence for more accurately assessing EE of activities commonly performed by Chinese youth. This is the first study to determine METs for radio gymnastics and jump rope in Chinese youth.

Relationship between motivation and learning in physical education and after-school physical activity.

PURPOSE: A primary goal of physical education is to develop physically literate individuals with the knowledge, skills, and confidence necessary for a physically active lifestyle. Guided by the expectancy-value and interest motivation theories, the purpose of this study was to identify the relationship between students' motivation and health-related fitness knowledge developed in physical education and their after-school physical activity participation. METHOD: Third-, 4th-, and 5th-grade students (N = 293) from 6 elementary schools in a large metropolitan school district in the United States provided data on expectancy beliefs and perceived task values, situational interest, health-related fitness knowledge, and after-school physical activity. Data were analyzed using descriptive statistics and a simultaneous multiple regression model. RESULTS: It was found that expectancy beliefs (ß = .20, t = 2.16, p = .03) and perceived exploration demand (ß = .25, t = 2.58, p = .01), a source for situational interest, were positively related to after-school physical activity. The 2 variables, however, accounted for only 11.2% of the variances for children's after-school physical activity participation. CONCLUSION: This study demonstrates that students' active exploration and expectancy beliefs for success in physical education have limited influence on leisure-time physical activity participation.

Sports game play: a comparison of moderate to vigorous physical activities in adolescents.

BACKGROUND: Research suggests participation in sports is an important contributor to overall adolescent physical activity (PA). Sports play has become increasingly important in physical education (PE) classes as a means for promoting healthful and enjoyable PA. Research is needed that investigates physiological and perceptual responses to sport play. METHODS: We studied 101 (55 males; 46 females, age 11-14) students who participated in flag football (FF), basketball (BB), and flag rugby (FR). Activity counts were collected using accelerometers. Perceived competence and enjoyment were measured using the intrinsic motivation inventory. RESULTS: Each sport activity produced acceptable levels of activity and positive perceptual responses, but differences among sports were noted. Accelerometry data indicated that FR and BB were more intense than FF (p < .001). Perceptual data indicated participation in FR elicited higher perceptions of competence and greater enjoyment when compared to FF and BB (p < .001). CONCLUSIONS: Participation in sport activity within middle school PE classes provides excellent opportunities for energy expenditure and positive perceptual responses. Most importantly, FR provides an activity stimulus that has potential benefits both physiologically and psychologically.

Exergaming impact on physical activity and interest in elementary school children.

In this study, I explored the impact of exergaming on in-class physical activity (PA) and motivation in physical education. Elementary children participated in a 4-week exergaming unit and a 4-week fitness unit. A t test showed the children's in-class PA in the exergaming unit was significantly lower than in the fitness unit. Results also indicated that students' situational interest in exergaming was significantly higher than in the fitness unit at the beginning and end of instruction. Children's interest declined significantly in both units and at the same rate. The evidence suggests that exergames may have strong motivational power but it is premature to claim they will increase physical activity enough for children to receive health benefits in physical education.

A service learning based project to change implicit and explicit bias toward obese individuals in kinesiology pre-professionals.

BACKGROUND: The objective of the study was to assess the efficacy of a multi-component intervention to reduce kinesiology pre-professionals' implicit and explicit bias. METHOD: A pre-post experimental design, which consisted of an experimental group (n = 42) and a control group (n = 36), was conducted to assess the efficacy of the intervention using both implicit and explicit obesity bias measures. RESULTS: On the pre-test, participants did not display overall explicit bias on the Anti-Fat Attitudes Test (AFAT) but had strong implicit bias and bias on the lazy/motivated semantic differential scale. Participation in the intervention reduced explicit bias on the AFAT social character disparagement and weight control/blame subscales but not implicit bias. CONCLUSION: Implicit bias remains difficult to change and appears to be deep-seated in individuals' minds. Future interventions may need methods to make sure all participants process and connect emotionally to all information.