Physical Illiteracy and Obesity Barrier: How Physical Education Can Overpass Potential Adverse Effects? A Narrative Review

Contradictions in Chilean public education policy: physical education and health case

The purpose of this text is to point out the contradiction existing in Chilean educational public policy regarding the curricular reform that converted the subjects of Physical Education and Health, History, Arts, and Religion into optional subjects for the 3rd and 4th years of high school. As far as Physical Education is concerned, scientific evidence shows that such conversion to the status of optional subject goes against the policies of other executive ministries and against the possibilities of reversing the statistics that show Chile as one of the countries in America with the highest percentage of overweight and obese children and adolescents.

Relationship between perceived physical literacy and obesity-related outcomes in adolescents: the EHDLA study

Purpose

The aim of the present study was to examine the relationship between perceived physical literacy and obesity-related outcomes among adolescents from Spain.

Methods

This is a secondary cross-sectional analysis including a total sample of 845 Spanish adolescents (55.3% girls) aged 12-17 years from the Valle de Ricote (Region of Murcia) from the Eating Healthy and Daily Life Activities (EHDLA) project. Physical literacy was evaluated using the Spanish Perceived Physical Literacy Instrument for adolescents (S-PPLI). Body mass index was computed by taking the participants' body weight in kilograms and dividing it by the square of their height in meters, and body mass index (z score) and overweight/obesity and obesity were computed by the World Health Organization age- and sex-specific thresholds. Waist circumference was measured using a constant tension tape. Moreover, the waist-to-height ratio was calculated, and therefore, abdominal obesity was determined. Skinfold measurements were taken at the triceps and medial calf using calibrated steel calipers.

Results

In general, the overall trend was downward (i.e., the higher the PPLI score the lower the obesity-related indicators), with the approximate significance of smooth terms being statistically significant for all models examined (p < 0.001). Adolescents with lower perceived physical literacy (PPL) showed the highest estimated marginal means of body mass index, body mass index z score, waist circumference, waist-to-height ratio, and skinfold (triceps and calf) and predictive probabilities of having excess weight, obesity, and abdominal obesity, while their counterparts with high PPL had the lowest. In addition, significant differences were observed for all the obesity-related indications between adolescents with low PPL and those with medium PPL (p-adjusted < 0.05 for all indicators), as well as with those with high PPL (p-adjusted < 0.05 for all indicators). Moreover, these significant differences were also shown for most indicators between adolescents with medium PPL and those with high PPL (except for obesity).

Conclusion

Physical literacy could play a crucial role in maintaining more desirable obesity-related outcomes in adolescents. Adolescents with high perceived physical literacy showed lower obesity-related indicators (i.e., body mass index, body mass index z score, waist circumference, waist-to-height ratio, skinfolds), as well as a lower probability of having excess weight, obesity, and abdominal obesity.

The validity of the Physical Literacy in Children Questionnaire in children aged 4 to 12

BACKGROUND

Given the growing evidence on the health benefits associated with physical literacy (PL), it is necessary to develop sound measures to assess the levels of PL in children. The Physical Literacy in Children Questionnaire (PL-C Quest) is the first self-report pictorial-based scale to assess children's perceived PL. It has good validity and reliability in Australian children aged 7 to 12 years, but little is known in younger children and in other cultural contexts. The aim of this study was to examine the validity and reliability in an expanded age range.

METHODS

A total of 1,870 Chinese children (girls, n = 871; 46.6%), aged 4 to 12 years (M = 8.07 ± 2.42) participated in validity testing. Structural equation modeling with the Weighted Least Squares with Mean and Variance approach was used to assess construct validity. The hypothesized theoretical model used the 30 items and four hypothesized factors: physical, psychological, social and cognitive capabilities. Multigroup confirmatory factor analysis was used to assess sex and age group (4-6 years, 7-9 years and 10-12 years) measurement invariance. Internal consistency analyses were conducted using polychoric alpha. A random subsample (n = 262) was selected to determine test-retest reliability using Intra-Class Correlations (ICC).

RESULTS

All items except one (moving with equipment-skateboarding) loaded on sub-domains with λ > 0.45. The hypothesized model had a good fit (CFI = 0.954, TLI = 0.950, RMSEA = 0.042), with measurement equivalence across sex and age groups separately. Internal consistency values were good to excellent (overall: α = 0.94; physical: α = 0.86; psychological: α = 0.83; social: α = 0.81; cognitive: α = 0.86). Test-retest reliability was adequate to excellent (overall: ICC = 0.90, physical: ICC = 0.86, psychological: ICC = 0.75, social: ICC = 0.71, cognitive: ICC = 0.72).

CONCLUSION

The Chinese version of the PL-C Quest is valid and reliable for testing the self-reported PL of Chinese children aged 4 to 12. This study provides the first evidence of validity for this tool in children aged 4-6 years and also evidence that the PL-C Quest would be a meaningful instrument to assess PL in Chinese children.

Synthesising physical literacy research for 'blank spots': A Systematic review of reviews

The holistic concept of physical literacy (PL) has gained considerable attention worldwide and integrates different determinants (e.g., physical, affective, and cognitive) of physical activity. The purpose of this systematic review (PROSPERO registration: CRD42022312764) was to broadly synthesise PL research and determine "blank spots". We performed standardized searches for PL reviews in 23 databases. Inclusion criteria were English language, any review with a systematized search, publication by June 2023 and PL relevance in an article's main body. The content and insights of the identified reviews were assigned to six literature-driven "problem fields": (i) theory/concept, (ii) measurement/levels/trends, (iii) determinants, (iv) outcomes, (v) interventions, and (vi) policy. We employed nine items for assessing the methodological quality of the reviews (including six items from AMSTAR-2). The screening resulted in an inclusion of 41 PL reviews of different methodology. Existing reviews most frequently analysed aspects of measurement (n = 20) as well as theory/definition (n = 19), followed by interventions (n = 17). In contrast, determinants (n = 6), outcomes (n = 5) and policy aspects (n = 4) were discussed less often. Accordingly, the major "blank spots" are: empirical studies on determinants and outcomes; PL levels and trends; pivotal moderators of interventions; and policy aspects. We recommend the scientific community to address these to move the field forward.

Effects of Musical Classes on Motor Creativity According to Age, Sex, and Weight Status in Young Students: A Music-Oriented versus Conventional Education Plan

Motor creativity can be influenced by the specificity of the school-class environments (music-based education plans) and individual characteristics. This study aimed to investigate the effects of music oriented and conventional education plans on rhythmic perceptive capacity, motor creativity, and skill- and health-related fitness components in young students according to age, sex, and weight status. One hundred sixty-three young Italian students from elementary (second and fourth grade) and middle school (sixth and eighth grade) were enrolled in the study according to their education plan (music oriented or conventional). All participants were tested for rhythmic perceptive capacity (Stambak's test), motor creativity (Divergent Movement Ability test), skill-related (Körperkoordinationstest Für Kinder), and health-related (Multistage Fitness test) components. Individuals were also considered according to age (elementary and middle school), sex, and weight status. Significant age × education plan and sex × education plan interactions (p < 0.01) were found in motor creativity (locomotor and stability skills) and motor competence (balance and jumping-like activities). No significant weight status × education plan interaction was found. The predominant role of music in the music-oriented education plan appeared to foster the ability to enhance motor creativity in elementary and middle school students compared to the conventional plan. Moreover, music-oriented experience also seems relevant for expressing and exhibiting motor competence (i.e., balance) in relation to sex.

Biochemical assessment of insulin and vitamin D levels in obese adolescents after diet and physical activity: A retrospective observational study

Study aim: Obesity is a serious public health problem that has spread over the past 40 years in industrialized countries. This condition can predispose to the onset of several chronic diseases for instance hyperlipidemia which is involved in multiple signaling pathways for bone homeostasis. There is a communication between adipose tissue and bone, which can regulate each other through feedback mechanisms including glucose consumption by bone, also regulating insulin levels. In our observational study, we analyzed the effects of low-impact training, particularly swimming, combined with a mediterranean diet on obese pre-adolescents.

Material and methods: Six-month of an observational study was performed involving twenty pre-adolescents aged between 8 and 12 years with diagnosed obesity with z-BMI >2, according to the World Health Organization guidelines.

Results: The assessment was carried out at the beginning of the intervention (T0) and at the end of treatment (T1). All participants were randomly assigned to either: the control group (CG) just followed the mediterranean diet whilst the experimental group (EG) over the mediterranean diet followed a planned physical activity.

The results showed statistically significant differences between T0 and T1 in both CG and EG, especially concerning 1,25(OH)2D and insulin levels. However, the differences were more impressive in EG (1,25(OH)2D 9.27 vs 25.64; Insulin 29.31 vs 12.66) compared with CG (1,25(OH)2D 8.7 vs 13.7; Insulin 28.45 vs 22.76).

Conclusions: In conclusion, these results showed the importance of diet and low-impact exercise intervention to improve pre-adolescent’s health especially those with obesity.