Effect of theory-based intervention to promote physical activity among adolescent girls: a randomized control trial

Developing a knowledge, attitude, and practice questionnaire on nutrition, physical activity, and body image for 13-14-year-old female adolescents

Objectives

The objective of this study was to develop and validate a Knowledge, Attitude, and Practice Questionnaire (KAPQ) on nutrition, physical activity, and body image for 13-14-year-old female adolescents.

Method

The KAPQ initially consisted of 73 items, covering knowledge (30), attitude (22), and practice (21) related to nutrition, physical activity (PA), and body image (BI). The content and face validity were tested to identify the relevance of the questionnaire items to the content and their relevance to nutrition, PA, and BI. Construct validity was assessed using an exploratory factor analysis (EFA). Internal consistency was determined by Cronbach's α value, and stability was determined based on test-retest reliability.

Results

Based on the EFA, each scale had several dimensions. The Cronbach's α ranged between 0.977 and 0.888 for knowledge, 0.902 and 0.977 for attitude, and 0.949 and 0.950 for practice. The test-retest reliability revealed that the kappa of knowledge was 0.773-1.000, while the intraclass correlation (ICC) values for attitude and practice were 0.682-1.000 and 0.778-1.000, respectively.

Conclusion

The final KAPQ, which included 72 items, was valid and reliable for assessing the KAP levels for nutrition, PA, and BI of 13-14-year-old female students in KSA.

School-based physical activity interventions among children and adolescents in the Middle East and Arabic speaking countries: A systematic review

BACKGROUND

It is widely recognised that noncommunicable diseases are on the rise worldwide, partly due to insufficient levels of physical activity (PA). It is a particularly concerning health issue among children and adolescents in Arabic countries where cultural and environmental factors may limit their opportunity for engaging in physical activities.

AIM

This review sought to assess the effectiveness of school-based PA interventions for increasing PA among schoolchildren aged six to 18 years in Middle Eastern and Arabic-speaking countries.

METHODS

A systematic literature search was developed to identify studies reporting the evaluation of school-based PA interventions in Arabic-speaking countries. Four different databases were searched from January 2000 to January 2023: PubMed/MEDLINE, Web of Science, Scopus and CINAHL. Article titles and abstracts were screened for relevance. Full article scrutiny of retrieved shortlisted articles was undertaken. After citation searches and reference checking of included papers, full data extraction, quality assessment and narrative synthesis was undertaken for all articles that met the inclusion criteria. This review adhered to PRISMA guidelines for conducting systematic reviews.

RESULTS

Seventeen articles met the inclusion criteria. Eleven articles reported statistically significant improvements in the levels of PA among their participants. Based largely on self-reported outcomes, increases in PA between 58% and 72% were reported. The studies with a follow-up period greater than three months reported sustained PA levels. There are a limited range of types of programmes evaluated and evaluations were only identified from 30% of the countries in the region. Relatively few studies focused solely on PA interventions and most of the interventions were multi-component (lifestyle, diet, education).

CONCLUSIONS

This review adds to the existing body of research about the efficacy of school-based interventions to increase physical activity levels. To date, few evaluations assess PA specific interventions and most of the interventions were multi-component including education components on lifestyle and diet. Long-term school-based interventions combined with rigorous theoretical and methodological frameworks are necessary to develop, implement and evaluate PA interventions for children and adolescents in Arabic-speaking countries. Also, future work in this area must also consider the complex systems and agents by which physical activity is influenced.

The Effects of a Physical Activity, Nutrition, and Body Image Intervention on Girls in Intermediate Schools in Saudi Arabia

This cluster-randomized study aimed to evaluate the effects of an intervention focused on physical activity, nutrition, and body image perception among girls in intermediate schools in Saudi Arabia. A seminar was delivered to the mothers of the girls in the experimental group. The experimental group then attended six interactive sessions within 3 months featuring physical activity, nutrition, and body image perception, followed by a 3-month follow-up period. A total of 138 respondents (68 in the experimental group and 70 in the control group) completed the intervention. Each participant's body mass index-for-age z-score and waist circumference were measured, and they completed a physical activity, sedentary behavior, and body image perception questionnaires before and after the intervention and at the follow-up. The intervention was evaluated using within- and between-groups generalized estimating equations. There were no significant changes in the respondents' body mass index-for-age z-score or waist circumference (p > 0.05). However, immediate significant improvements were seen in physical activity, sedentary behavior, and body image satisfaction among the experimental group, and these improvements remained at follow-up (p < 0.001). These differences were more significant among the experimental group than among the control group. We found this intervention effective. Future studies can adapt this intervention for adolescent boys and extend its duration to improve the body mass index outcome.

Perceived behavioral control regarding regular physical activity and healthy diet: An observational study among school-going adolescents in an urban area of West Bengal, India

BACKGROUND

Healthy children are the foundation for a healthy and developing nation. Perceived behavioral control (PBC), comprising control belief and perceived power, is a person's perception of the ease or difficulty of performing the behavior of interest. For facilitating regular physical activity and regular healthy dietary practices among the adolescents, PBC is an important construct to develop and implement appropriate interventions. The aim is to assess PBC to perform regular physical activity and regular healthy dietary practices and measure their statistical relationship among the school-going adolescents in an urban area in West Bengal.

MATERIALS AND METHODS

A school-based cross-sectional study was conducted among 251 adolescents aged 12-16 years after taking consent and assent for participation in the study. Data were collected with self-administered questionnaire on sociodemographic variables and the two domains of PBC, i.e., control beliefs and perceived power, related to regular physical activity and regular healthy dietary practices. Each PBC total score was calculated by multiplying control belief score and perceived power score for each respondent. Partial correlation coefficient was calculated between regular healthy dietary practices and regular physical activity.

RESULTS

Among the total 251 responses analyzed, 34.7% and 27.5% students belonged to age group 14 and 15, respectively. It was observed that the mean (± standard deviation) score of PBC regarding regular healthy dietary practices was 100.7 (±27.7) and for regular physical activity was 106.0 (±21.4). The correlation between PBC of regular healthy dietary practices and regular physical activity was 0.421 and was statistically significant.

CONCLUSION

In case PBC score over any behavior is higher, behavioral intention and ultimately chances of performing that particular behavior increases. Designing appropriate school-based health promotion strategies can lead to healthier children fostering regular healthy dietary practices and regular physical activity in their homes and communities.

Physical activity intention and attendance behaviour in Finnish youth with cerebral palsy - results from a physical activity intervention: an application of the theory of planned behaviour

Physical activity is associated with better health in individuals with cerebral palsy (CP). Numerous physical activity interventions have been designed to promote physical activity among youth with CP. No previous studies have explored the factors contributing to the intention to participate and predicting attendance behaviour for these interventions. Using theory of planned behaviour (TPB), this study explored the prediction of physical activity intention and attendance behaviour in a physical activity intervention aiming to promote physical activity in a sample of young individuals with CP. Males with CP aged 9–21 years were asked to complete measures of attitude, subjective norms, perceived behavioural control and, intentions towards a physical activity intervention. Participants had no cognitive impairments to understand and follow instructions, were categorised into Gross Motor Function Classification System I–III, did not receive any specific lower limbs’ medical treatment, or did not participate in a strength training program for lower limbs within 6 months before the study. Subjective norms were found to be the only significant predictor of intention, accounting for 83% of variance in intention. Intention and perceived behaviour control were found to be a nonsignificant predictor of attendance behaviour in youth with CP. The results show that TPB is a relevant tool in the prediction of intention towards a physical activity intervention in Finnish youth with CP.

Effect of educational intervention on improvement of physical activities of middle-aged women

BACKGROUND

Regular physical activity has important health benefits for women. The present study aimed to investigate the effect of theory-based educational interventions on the improvement of physical activities of middle-aged women.

METHODS

This experimental study was conducted on 160 middle-aged women referred to Ahwaz health centers Iran in 2017 who were selected through the cluster sampling method. They were randomly divided into two groups: intervention (n = 80) and control (n = 80). The educational intervention for the experimental group consisted of 4 consultation and 4 follow-up sessions. The study outcomes included physical activity change, self-efficacy, decision-making balance, and the International Physical Activity Questionnaire, which were measured before the intervention and 2 months after that. The data were analyzed using the SPSS19 software as well as the Chi-square, independent t-test and paired t-test.

RESULTS

After the intervention, the mean scores of preparedness for change, decision-making balance, perceived self-efficacy, pre-thinking, thinking, preparation, practice and maintenance were significantly different in both the experimental and control groups (P value < 0.05). The t-test showed that after the educational intervention, the mean score of physical activity was significantly higher in the experimental group than in the control group (726.3 ± 201.6 and 339.8 ± 90.2, respectively) (P value < 0.001).

CONCLUSION

The findings of this study showed that the theory-based educational intervention was effective on the improvement of the middle-aged women's physical activities. Therefore, it is suggested that a theory-based educational program be designed and implemented in order to increase the physical activities of this group.

School-based physical activity programs for promoting physical activity and fitness in children and adolescents aged 6 to 18

BACKGROUND

Physical activity among children and adolescents is associated with lower adiposity, improved cardio-metabolic health, and improved fitness. Worldwide, fewer than 30% of children and adolescents meet global physical activity recommendations of at least 60 minutes of moderate to vigorous physical activity per day. Schools may be ideal sites for interventions given that children and adolescents in most parts of the world spend a substantial amount of time in transit to and from school or attending school.

OBJECTIVES

The purpose of this review update is to summarise the evidence on effectiveness of school-based interventions in increasing moderate to vigorous physical activity and improving fitness among children and adolescents 6 to 18 years of age. Specific objectives are: • to evaluate the effects of school-based interventions on increasing physical activity and improving fitness among children and adolescents; • to evaluate the effects of school-based interventions on improving body composition; and • to determine whether certain combinations or components (or both) of school-based interventions are more effective than others in promoting physical activity and fitness in this target population.

SEARCH METHODS

We searched CENTRAL, MEDLINE, Embase, CINAHL, PsycINFO, BIOSIS, SPORTDiscus, and Sociological Abstracts to 1 June 2020, without language restrictions. We screened reference lists of included articles and relevant systematic reviews. We contacted primary authors of studies to ask for additional information.

SELECTION CRITERIA

Eligible interventions were relevant to public health practice (i.e. were not delivered by a clinician), were implemented in the school setting, and aimed to increase physical activity among all school-attending children and adolescents (aged 6 to 18) for at least 12 weeks. The review was limited to randomised controlled trials. For this update, we have added two new criteria: the primary aim of the study was to increase physical activity or fitness, and the study used an objective measure of physical activity or fitness. Primary outcomes included proportion of participants meeting physical activity guidelines and duration of moderate to vigorous physical activity and sedentary time (new to this update). Secondary outcomes included measured body mass index (BMI), physical fitness, health-related quality of life (new to this update), and adverse events (new to this update). Television viewing time, blood cholesterol, and blood pressure have been removed from this update.  DATA COLLECTION AND ANALYSIS: Two independent review authors used standardised forms to assess each study for relevance, to extract data, and to assess risk of bias. When discrepancies existed, discussion occurred until consensus was reached. Certainty of evidence was assessed according to GRADE. A random-effects meta-analysis based on the inverse variance method was conducted with participants stratified by age (children versus adolescents) when sufficient data were reported. Subgroup analyses explored effects by intervention type.

MAIN RESULTS

Based on the three new inclusion criteria, we excluded 16 of the 44 studies included in the previous version of this review. We screened an additional 9968 titles (search October 2011 to June 2020), of which 978 unique studies were potentially relevant and 61 met all criteria for this update. We included a total of 89 studies representing complete data for 66,752 study participants. Most studies included children only (n = 56), followed by adolescents only (n = 22), and both (n = 10); one study did not report student age. Multi-component interventions were most common (n = 40), followed by schooltime physical activity (n = 19), enhanced physical education (n = 15), and before and after school programmes (n = 14); one study explored both enhanced physical education and an after school programme. Lack of blinding of participants, personnel, and outcome assessors and loss to follow-up were the most common sources of bias.  Results show that school-based physical activity interventions probably result in little to no increase in time engaged in moderate to vigorous physical activity (mean difference (MD) 0.73 minutes/d, 95% confidence interval (CI) 0.16 to 1.30; 33 studies; moderate-certainty evidence) and may lead to little to no decrease in sedentary time (MD -3.78 minutes/d, 95% CI -7.80 to 0.24; 16 studies; low-certainty evidence). School-based physical activity interventions may improve physical fitness reported as maximal oxygen uptake (VO₂max) (MD 1.19 mL/kg/min, 95% CI 0.57 to 1.82; 13 studies; low-certainty evidence). School-based physical activity interventions may result in a very small decrease in BMI z-scores (MD -0.06, 95% CI -0.09 to -0.02; 21 studies; low-certainty evidence) and may not impact BMI expressed as kg/m² (MD -0.07, 95% CI -0.15 to 0.01; 50 studies; low-certainty evidence). We are very uncertain whether school-based physical activity interventions impact health-related quality of life or adverse events.

AUTHORS' CONCLUSIONS

Given the variability of results and the overall small effects, school staff and public health professionals must give the matter considerable thought before implementing school-based physical activity interventions. Given the heterogeneity of effects, the risk of bias, and findings that the magnitude of effect is generally small, results should be interpreted cautiously.

Structured, multifactorial randomised controlled intervention to investigate physical activity levels, body composition and diet in obese and overweight adolescents

INTRODUCTION

There has been a steep increase in the prevalence of adolescent overweight and obesity globally and in India, demonstrating that present prevention strategies are insufficient. Available evidence suggests that multifactorial interventions may improve short-term physical activity (PA), nutrition and psychological behaviour of overweight and obese adolescents but long-term follow-ups and strategies are needed. This study will investigate the effects of a structured multifactorial (school-based and family-based) intervention on adolescent obesity, compared with a single or no intervention.

METHODS AND ANALYSIS

A pragmatic, clustered randomised controlled trial with 12 weeks of interventions and 3-month, 6-month and 12-month follow-ups will be conducted at multiple participating schools in Karnataka, India. The participants will be overweight and obese male and female adolescents aged 11-16 years and will be randomly assigned by school into three groups: group A (multifactorial intervention, exercise and dietary advice); group B (exercise only); and group C (controls, no interventions). Primary outcome measures are the level of PA and body composition. Secondary outcomes are dietary change, behaviour change, food behaviours, cardiovascular and muscular fitness, quality of life, parental behaviours (physical and mental) and family functioning. Positive intervention results may reduce obesity in adolescents and promote a healthier lifestyle for students and families. A larger, culturally diverse population can benefit from a similar methodology.

ETHICS AND DISSEMINATION

The study has been approved by the Institutional Research and Ethics Committee (IEC 536-2018), Kasturba Hospital, Manipal, Udupi District, Karnataka, India. A written and verbal informed consent (supplemental material) will be provided to the participants prior to participation. On completion of the trial, the results can be communicated to adolescents and their parents on request, and will be published at national and international conferences and in peer-reviewed journals.

TRIAL REGISTRATION NUMBER

CTRI/2019/04/018834.

The Effect of Theory-Based HIV/AIDS Educational Program on Preventive Behaviors Among Female Adolescents in Tehran: A Randomized Controlled Trial

BACKGROUND

Adolescents are increasingly at risks of HIV infection through high-risk sexual behaviors. This paper aimed to assess the effectiveness of a HIV/AIDS educational intervention among female adolescents in Tehran.

METHODS

A randomized controlled trial was conducted among high school girls aged 12-16 years studying in Tehran in 2016-17. The sample was selected using multistage random cluster sampling. Four schools per district were randomly selected using probability-proportional to size. Adolescents were randomly assigned to the experimental (n=289) and the control (n=289) groups. The theory of planned behavior (TPB) was the basis of both the intervention and the evaluation phase. Both experimental and control groups completed a questionnaire designed for HIV related behaviors for female adolescents (HBQFA) at baseline and after six months follow up. A theory-based educational program was implemented for the experimental group.

RESULTS

The mean age of participants was 14.1 years (SD=0.96). In the experimental group, significant improvements were shown in adolescents' HIV knowledge (31.9%, 95% CI: 28.8-35.0), attitudes towards HIV (16.6%, 95% CI=14.4-18.8), subjective norm (16.8%, 95% CI=12.9-20.6) and perceived behavioral control (19.1%, 95% CI=16.2-22.1), perceived parental support (17%, 95% CI=13.8-20.2), behavioral intention to prevent HIV (19%, 95% CI=16.3-21.6), and HIV preventive behavior (17.3%, 95% CI=13.9-20.6) (p<0.001).

CONCLUSION

Theory-based educational intervention on HIV/AIDS prevention can significantly protect adolescents from misconceptions, wrong attitudes and risky behaviors and unsupportive social environment that expose them to greater HIV risk. Health policy -makers are advised to consider effective training programs related to HIV/AIDS prevention behaviors in the school system.

Using Gamification and Social Incentives to Increase Physical Activity and Related Social Cognition among Undergraduate Students in Shanghai, China

Gamification and social incentives are promising strategies to increase the effectiveness of web-based physical activity (PA) interventions by improving engagement. In this study, we designed a PA intervention integrating gamification and social incentives based on the most popular social networking service in China, WeChat. A controlled trial involving 52 Chinese undergraduate students was implemented to evaluate the effectiveness of the intervention. Subjects in the intervention group received a 7-week intervention. PA behavior and related social cognitive variables according to the theory of planned behavior were measured at the baseline and after the intervention. Daily physical activity duration was measured during the intervention. The results showed that PA-related subjective norms, perceived behavior control, and intention, as well as self-reported vigorous physical activity and moderate physical activity in the intervention group, were increased after the intervention, compared with the control group (p <0.05). During the intervention, perceived daily physical activity duration in the intervention group was on the rise, while it declined in the control group (p <0.001). The findings indicate that WeChat-based intervention integrating gamification and social incentives could effectively increase subjectively measured PA and related social cognition among Chinese undergraduate students and that it is a promising way to ameliorate the problem of insufficient PA among youths.

Development and Psychometric Properties of Menstrual Health Seeking Behaviors Questionnaire (MHSBQ-42) in Female Adolescents

BACKGROUND

Lack of accurate menstrual knowledge, attitude, and practices leave female adolescents ignorant of the necessary health behaviors during menstruation. This study aimed to develop a menstrual health-seeking behavior questionnaire based on the theory of planned behavior to evaluate its psychometric properties in female adolescents in Tehran.

METHODS

This study was conducted on 578 female adolescents aged 12-15 years in Tehran. The first draft of the menstrual health-seeking behavior questionnaire containing 52 items was developed based on the theory of planned behavior (TPB). The content and face validity of the questionnaire was assessed by a panel of experts. Construct validity was also assessed using exploratory factor analysis (KMO=0.73) with varimax rotation. Cranach's alpha and test-retest were used to examine the reliability of the questionnaire. All statistical analysis was performed using SPSS 23.0 and AMOS 23.0.

RESULTS

The content and face validity of the 42 items were finally confirmed. Content validity index was greater than 0.73 for all six TPB constructs. Explanatory factor analysis yielded an acceptable fit for the six-factor model (RMSE=0.053, 95% CI 0.042-0.064). These factors jointly explained 65% of the variance in the outcome variables. Cranach's alpha coefficients ranged from 0.79 to 0.91, demonstrating an excellent internal consistency and high reliability of the questionnaire. Test-retest reliability was also satisfactory for all items (ICC=0.86-0.94).

CONCLUSION

The results illustrate that the menstrual health-seeking behavior questionnaire is psychometrically adequate and highly reliable. This theoretically grounded questionnaire can be well applied in future interventions for female adolescents to assess their menstrual health-related knowledge, attitude, and practices.