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[This corrects the article DOI: 10.1371/journal.pone.0273496.].
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Introduction: The role of physical activity in children's healthy development is undisputed, with school-based interventions being seen as a priority. The promotion of physical literacy (PL) seems to be promising due to its holistic approach, combining physical, cognitive, and affective domains. To develop recommendations for possible measures, we compiled existing literature on existing school-based PL interventions. Methods: Five databases (MEDLINE, Web of Science, SPORTDiscus, ERIC, and PsycInfo) were searched between July 6 and July 10, 2023, by combining the terms "physical literacy," "school," "program," "workshop," "intervention," and "curriculum" as well as a manual search. Records were screened in a two-stage process by two independent authors using a priori criteria. Eligible studies concerned PL interventions in the school context. The included records were sorted according to school type/population, structure, content, PL domains addressed, and evaluation. Results: In total, 706 articles were found through the database search and an additional 28 articles through the manual search. After removing duplicates, 502 publications remained, which were screened by title and abstract, leaving 82 full texts. These were cut down to 37 articles describing 31 different programs (19 in primary schools, eight in secondary schools, one in both primary and secondary schools, and three unspecified). Most interventions were conducted during physical education classes (n = 12). All three PL domains were addressed by five interventions, while 11 interventions solely concerned the physical domain. In addition, 21 interventions evaluated their effects on PL. Most evaluations showed small to moderate but inconsistent effects on several PL-related constructs (e.g., self-efficacy, motivation, movement skills). Interventions incorporating all three domains reported positive effects on physical competence and enjoyment. Discussion: Although there is a growing body of data related to school-based PL promotion, their effects and practical application remains relatively underdeveloped: study designs, study quality, PL assessments, and results are heterogeneous. Corresponding research adhering to the holistic approach of PL will be crucial in clarifying the potential lifelong role of PL in promoting physical activity, increasing health and well-being and to actually enable development of recommendations for action.
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Ejercicio Físico , Promoción de la Salud , Instituciones Académicas , Humanos , Promoción de la Salud/métodos , Niño , Servicios de Salud Escolar , Alfabetización en Salud , AdolescenteRESUMEN
BACKGROUND: Mental disorders are important comorbidities in youth with obesity. Aim was to describe the clinical characteristics and outcome of youth with overweight or obesity having comorbid mental disorders. METHODS: Data from children, adolescents, and young adults (age 6-30 years) with overweight or obesity and mental disorders (depression, anxiety disorder, eating disorder, attention deficit disorder (ADHD)) from 226 centers in Germany and Austria participating in the Adiposity Patient Registry (APV) were analyzed and compared with those without reported mental disorders using regression modeling. RESULTS: Mental health comorbidity was reported in a total of 3969 out of 114,248 individuals with overweight or obesity: 42.5% had ADHD, 31.3% anxiety disorders, 24.3% depression, and 12.9% eating disorders. Being male (OR 1.39 (95%CI 1.27;1.52)), of older age (1.42 (1.25;1.62)), or with extreme obesity (1.45 (1.30;1.63)) were most strongly associated with mental health comorbidity. Regression analysis showed that mean BMI-SDS was significantly higher in the group of individuals with depression and eating disorders (BMI-SDS 2.13 (lower; upper mean:2.09;2.16) and 2.22 (2.17;2.26)) compared to those without reported mental health comorbidity (BMI-SDS 2.008 (2.005;2.011); p < 0.001). In youth with ADHD, BMI-SDS was lower compared to those without reported mental disorders (BMI-SDS 1.91 (1.89;1.93) vs 2.008 (2.005;2.011); p < 0.001). Proportion of severe obesity was higher in individuals with depression (23.7%), anxiety disorders (17.8%), and eating disorders (33.3%), but lower in ADHD (10.3%), compared to those without reported mental disorders (13.5%, p < 0.002). Proportions of dyslipidaemia and abnormal carbohydrate metabolism were not different in youth with and without reported mental health comorbidity. BMI-SDS change after one year of lifestyle intervention program ranged between -0.22 and -0.16 and was similar in youth without and with different mental disorders. CONCLUSION: Health care professionals caring for youth with overweight or obesity should be aware of comorbid mental disorders and regular mental health screening should be considered.
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Trastorno por Déficit de Atención con Hiperactividad , Obesidad Mórbida , Niño , Humanos , Masculino , Adolescente , Adulto Joven , Adulto , Femenino , Sobrepeso/complicaciones , Sobrepeso/epidemiología , Sobrepeso/diagnóstico , Salud Mental , Obesidad/complicaciones , Obesidad/epidemiología , Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Comorbilidad , Obesidad Mórbida/complicacionesRESUMEN
Endurance performance tests directly measuring cardiorespiratory fitness are complex, but field tests indirectly assessing maximum oxygen uptake (VO2max) are an alternative. This study aimed to validate the 6-minute run test in adults, comparing it to the established shuttle run test, and to create reference equations. The cross-over design involved healthy adults aged 18-65 undertaking both tests, separated by a two-hour interval. The 6-minute run test required participants to run around a volleyball court for six minutes, aiming to maximize distance covered. The shuttle run involved participants covering 20 meters in defined time intervals at increasing speeds. Parameters measured included 6-minute run test distance, heart rates, calculated maximum oxygen uptake during the shuttle run, and total shuttle count. The study enrolled 250 participants (134 men and 116 women). Men averaged 1195.7 m (SD=161.4), while women averaged 1051.2 m (SD=148.0) in six minutes. The strongest correlation was found between the distance covered in the 6-minute run test and the total shuttle count (r=0.91, p<0.001). Two predictive models for 6-minute run test distance were developed and normative values for different sex-specific age clusters were established. The study showed that the 6-minute run test is valid as a practical endurance test for adults aged 18-65.
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Capacidad Cardiovascular , Carrera , Masculino , Adulto , Humanos , Femenino , Prueba de Esfuerzo , Consumo de Oxígeno/fisiología , Carrera/fisiología , OxígenoRESUMEN
INTRODUCTION: BMI or BMI-standardized deviation score (SDS) in children and adolescents is still the standard for weight classification. [BMJ. 2019;366:4293] developed a formula to calculate body fat percentage (%BF) based on age, sex, height, weight, and ethnicity. Using data from the German/Austrian APV registry, we investigated whether the calculated %BF is superior to BMI-SDS in predicting arterial hypertension, dyslipidaemia, and impaired glucose metabolism. METHODS: 94,586 children and adolescents were included (12.5 years, 48.3% male). Parental birth country (BC) was used to depict ethnicity (15.8% migration background); 95.67% were assigned to the ethnicity "white." %BF was calculated based on the Hudda formula. The relationship between BMI-SDS or %BF quartiles and outcome variables was investigated by logistic regression models, adjusted for age, sex, and migration background. Vuong test was applied to analyse predictive power. RESULTS: 58.4% had arterial hypertension, 33.5% had dyslipidaemia, and 11.6% had impaired glucose metabolism. Boys were significantly more often affected, although girls had higher calculated %BF (each p < 0.05). After adjustment, both models revealed significant differences between the quartiles (all p < 0.001). The predictive power of BMI-SDS was superior to %BF for all three comorbidities (all p < 0.05). DISCUSSION: The prediction of cardiometabolic comorbidities by calculated %BF was not superior to BMI-SDS. This formula developed in a British population may not be suitable for a central European population, which is applicable to this possibly less heterogeneous collective. Additional parameters, especially puberty status, should be taken into account. However, objective determinations such as bioimpedance analysis may possibly be superior to assess fat mass and cardiometabolic risk than calculated %BF.
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Dislipidemias , Hipertensión , Obesidad Infantil , Femenino , Humanos , Masculino , Niño , Adolescente , Índice de Masa Corporal , Obesidad Infantil/epidemiología , Factores de Riesgo Cardiometabólico , Hipertensión/epidemiología , Tejido Adiposo , Dislipidemias/epidemiología , Glucosa , Factores de RiesgoRESUMEN
The benefits of maternal physical activity during pregnancy are well documented, but long-term effects on the child have been less studied. Therefore, we conducted a pilot follow-up study of a lifestyle intervention during pregnancy that aimed to investigate whether exercise (endurance and strength training) during pregnancy affects motor performance and body composition of children up to 9 years of age, as well as possible influencing factors like brain-derived neurotrophic factor (BDNF) and lifestyle. Eleven mother-child pairs from the intervention and eight mother-child pairs from the control group were included. From birth up to 9 years of age, no differences in body mass index (BMI) or body mass index standard deviation scores (BMI-SDS) were found between the groups. Lifestyle intervention was one of the influencing factors for children's cardiorespiratory endurance capacity and coordination. Moreover, maternal BDNF in the last trimester was significantly associated with running performance, which may be due to better neuronal development. This is the first study evaluating the effects of a lifestyle intervention during pregnancy on the motor performance 9 years after birth. Children's participation in exercise programs over the past 9 years was not continuously recorded and therefore not included in the analysis. Even a cautious interpretation of these results indicates that a healthy lifestyle during pregnancy is essential in promoting child health. Larger studies and randomized control trials are necessary to confirm our results, especially those pertaining to the role of BDNF.
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BACKGROUND: Despite the recognised health benefits of physical activity, the physical activity levels of children and adolescents continue to decline. The concept of physical literacy (PL) is a promising holistic approach to physical activity promotion that addresses affective and cognitive domains in addition to physical and motor domains. In Germany, however, no uniform or widely used method exists for assessing PL in children. This research was conducted to compile information on international PL assessment systems for children and adolescents (up to 18 years of age), including their underlying definitions, structural designs and development processes, for the purpose of developing such a tool in Germany. METHODS: A scoping review was conducted using PubMed, Web of Science and SPORTDiscus database entries. The initial search was conducted in July 2022, with a follow-up search performed in May 2023. Articles that operationalised the construct of PL and at least two of the three domains were identified and included. The procedure and assessment tools used to evaluate the individual domains and the overall PL construct were extracted from all selected articles. RESULTS: A total of 882 articles were identified; five were added after a manual search. After duplicates were removed, 563 articles were screened by title and abstract, and 40 articles met the inclusion criteria and were included in the review. In a review of these articles, 23 different assessment procedures were identified. Eight assessment procedures included PL as a superordinate construct. Twenty-two of the 23 procedures assessed the affective and physical domains, only 14 assessed the cognitive domain. CONCLUSION: Approximately half of the identified PL assessment systems addressed all three domains. Motor performance was most frequently integrated into the test procedures. Future developments in Germany should integrate all domains in the assessment to produce a holistic conceptualisation as the basis for appropriate funding.
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Formación de Concepto , Alfabetización , Humanos , Adolescente , Niño , Bases de Datos Factuales , Ejercicio Físico , AlemaniaRESUMEN
OBJECTIVE: The first-line approach for childhood obesity is lifestyle intervention (LI); however, success varies. This study aimed first to identify distinct subgroups of response in children living with overweight and obesity and second to elucidate predictors for subclusters. METHODS: Based on the obesity patient follow-up registry the APV (Adipositas-Patienten-Verlaufsdokumentation) initiative, a total of 12,453 children and adolescents (median age: 11.5 [IQR: 9.7-13.2] years; BMI z score [BMIz]: 2.06 [IQR: 1.79-2.34]; 52.6% girls) living with overweight/obesity and participating in outpatient LI were studied. Longitudinal k-means clustering was used to identify individual BMIz response curve for up to 2 years after treatment initiation. Multinomial logistic regression was used to elucidate predictors for cluster membership. RESULTS: A total of 36.3% of children and adolescents experienced "no BMIz loss." The largest subcluster (44.8%) achieved "moderate BMIz loss," with an average delta-BMIz of -0.23 (IQR: -0.33 to -0.14) at study end. A total of 18.9% had a "pronounced BMIz loss" up to -0.61 (IQR: -0.76 to -0.49). Younger age and lower BMIz at LI initiation, larger initial BMIz loss, and less social deprivation were linked with higher likelihood for moderate or pronounced BMIz loss compared with the no BMIz loss cluster (all p < 0.05). CONCLUSIONS: These results support the importance of patient-tailored intervention and earlier treatment escalation in high-risk individuals who have little chance of success.
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Sobrepeso , Obesidad Infantil , Femenino , Adolescente , Humanos , Niño , Masculino , Sobrepeso/terapia , Obesidad Infantil/terapia , Índice de Masa Corporal , Pacientes Ambulatorios , AdiposidadRESUMEN
OBJECTIVES: To investigate the potential protective role of exercise on the odds of COVID-19 infection in unvaccinated contact persons (CPs) who were at higher risk of infection due to confirmed contact with infected persons. METHODS: Before the onset of the vaccination campaign, the first wave of the CoCo-Fakt online survey was conducted with SARS-CoV-2-positive persons and their confirmed contacts who were isolated/quarantined between 1 March 2020 and 9 December 2020. Within this analysis, 5338 CPs were included and divided into those who subsequently tested positive (CP-P) and those who remained negative (CP-N). We assessed demographics as well as pre-pandemic lifestyle characteristics including physical activity (PA; type, frequency, time, intensity; duration clustered as 'below PA guidelines', 'meeting PA guidelines', and 'above PA guidelines'; intensity clustered as 'low intensity' and 'moderate-to-vigorous intensity') and sedentary behaviour. RESULTS: A greater percentage of CP-Ns reported being active before the pandemic compared to CP-Ps (69% vs. 63%; p = .004). Moreover, CP-Ns reported higher PA duration (164.1 min/week vs. 143.2 min/week; p = .038) and higher PA intensities than CP-Ps (67% vs. 60% moderate-to-vigorous intensity, 33% vs. 40% low intensity; p = .003). Adjusting for age, sex, socioeconomic status, migration background, and pre-existing chronic diseases, the odds of infection were negatively associated with exercise (yes/no) (Nagelkerke R2 = 1.9%), PA levels above PA guidelines (Nagelkerke R2 = 2.0%), and PA intensity (Nagelkerke R2 = 1.8%). CONCLUSION: Due to the beneficial effects of PA on the odds of infection, an active lifestyle should be promoted especially during possible subsequent pandemics (while taking into account necessary hygiene measures). Moreover, inactive and chronically ill persons should be especially encouraged to adopt a healthier lifestyle.
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INTRODUCTION: The public restrictions taken during the COVID-19 pandemic have substantially affected lifestyle and health behavior of children and adolescents. In Germany, little is known how these changes influenced daily life in families with children and adolescents. METHODS: A cross-sectional survey was performed in April/May 2022 across Germany, similar to a survey performed in 2020. Parents (N = 1,004, 20-65 years) with at least one child aged 3-17 years filled in an online questionnaire released by the Forsa Institute for Social Research and Statistical Analysis. Fifteen questions related to eating habits, dietary patterns, physical activity, media consumption, fitness, mental health, and body weight were included, and standard socioeconomic parameters were assessed. RESULTS: Parents' answers indicated that there was a parental self-reported weight gain in every sixth child since the beginning of the COVID-19 pandemic. This was most obvious in children from families with lower household income and preexisting overweight. Parents also reported that lifestyle patterns had worsened: 70% reported an increase of media consumption during leisure time, 44% a decrease in daily physical activity, and 16% the worsening of dietary habits (e.g., 27% stated to eat more cake and sweets). Children aged 10-12 years were most severely affected. CONCLUSION: Negative health effects related to the COVID-19 pandemic are predominantly observed in children 10-12 years of age and in children from families with low household income, suggesting a worsening social disparity. Political action is urgently needed to tackle the adverse consequences of the COVID-19 pandemic on childhood lifestyle and health.
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COVID-19 , Niño , Humanos , Adolescente , COVID-19/epidemiología , Estudios Transversales , Pandemias , Estilo de Vida , Sobrepeso/epidemiología , Sobrepeso/psicología , Encuestas y Cuestionarios , Padres/psicologíaRESUMEN
This longitudinal study analyzes data from the Children's Health Interventional Trial (CHILT) III, an 11-month juvenile multicomponent weight management program. The objective is to identify predictors of changes in body mass index standard deviation scores (BMI-SDS), so as to further enable the advancement of existing interventions with sustained impact. This study's sample consists of 237 children and adolescents with obesity (8-17 years, 54% girls) participating in the CHILT III program between 2003 and 2021. Anthropometrics, demographics, relative cardiovascular endurance (W/kg), and psychosocial health (i.e., physical self-concept and self-worth) were assessed at program entry ([Formula: see text]), end ([Formula: see text]), and one-year follow-up ([Formula: see text]; n = 83). From [Formula: see text] to [Formula: see text], the mean BMI-SDS was reduced by -0.16 ± 0.26 units (p < 0.001). Media use and cardiovascular endurance at baseline and improvements in endurance and self-worth over the course of the program predicted changes in BMI-SDS (adj. R2 = 0.22, p < 0.001). From [Formula: see text] to [Formula: see text], mean BMI-SDS increased ([Formula: see text], p = 0.005). Changes in BMI-SDS from [Formula: see text] to [Formula: see text] were associated with parental education, improvements in cardiovascular endurance and physical self-concept, and BMI-SDS, media use, physical self-concept, and endurance level at program end (adj. R2 = 0.39, p < 0.001). Conclusions: This study highlights the need for comprehensive, sustainable weight management approaches, in order to sustain the initial treatment benefits. In this context, improvements in cardiovascular endurance and psychosocial health could be essential strategies to pursue in practice, as they significantly predicted reductions in BMI-SDS - both pre- to post-intervention and at follow-up. TRIAL REGISTRATION: DRKS00026785; date of registration: 13.10.202, retrospectively registered. WHAT IS KNOWN: ⢠Childhood obesity is associated with the onset of noncommunicable diseases, many of which are likely to carry into adulthood. Thus, effective weight management strategies for affected children and their families are vital. However, achieving lasting positive health outcomes with multidisciplinary weight management programs remains challenging. WHAT IS NEW: ⢠According to this study, short- and longer-term BMI-SDS reductions are associated to cardiovascular endurance and psychosocial health. These factors should therefore be given even greater consideration in weight management strategies, as they may be important not only in themselves but also for long-term weight loss (maintenance).
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Obesidad Infantil , Femenino , Adolescente , Humanos , Niño , Masculino , Índice de Masa Corporal , Obesidad Infantil/terapia , Obesidad Infantil/psicología , Estudios Longitudinales , Salud Infantil , Pérdida de PesoRESUMEN
Lifestyle during pregnancy impacts the health of the mother and child. However, the extent to which physical activity affects maternal biomarkers and factors that might influence birth weight remains unclear. We analysed data from two lifestyle interventions in which the effects of an exercise programme (2x/week, 60-90 min) on the course of pregnancy with regard to adipokines and offspring were evaluated. A total of 70 women participated in this study (45, intervention group; 25, control group). Anthropometric data and maternal fasting serum leptin and resistin levels were measured at three time points (approximately 14th (T1), 24th (T2), and 36th (T3) weeks of gestation). Neonatal/child data were retrieved from screening examinations. Independent of the intervention, we found a positive correlation between the fat mass at T1 and both leptin and resistin levels at all time points. Leptin level was significantly higher in the control group at T3; however, no differences between the groups were found for resistin. The birth weight was influenced by the birth length, fat mass at T1/T3, and resistin level at T2. The BMI-SDS at one year of age was influenced by maternal fat-free mass at T3 and resistin at T1/T2. Even if these results can only be interpreted cautiously, lifestyle interventions during pregnancy are important in promoting maternal and child health. Further randomised controlled trials and translational studies are warranted to clarify the underlying mechanisms.
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Juvenile obesity is associated with a lower self-concept. Given the continued prevalence of obesity, we examined the secular trend of body mass index standard deviation score (BMI-SDS) and self-concept in participants of a German weight management programme (n = 242, 53.3% female, mean age 12.5 ± 2.1 years, mean BMI-SDS 2.45 ± 0.46) over a period of 15 years. Anthropometric data, physical fitness (watt/kg), and demographic data were assessed. The years 2005 to 2020 were grouped into six sections containing a mean of n = 40 participants. The questionnaire for the assessment of self and competence in children (FSK-K) was used to assess the following domains: "scholastic competence", "social competence", "physical appearance", "global self-worth", and "behavioural conduct". No significant between-group differences in self-assessment across self-concept domains were found. In all time periods, heavier children assigned the lowest rating to physical appearance. Social competence increased with higher physical fitness. Even though no negative trend in the self-concept of children with obesity was found in this cohort, the findings confirmed an association between juvenile overweight/obesity and lower physical self-concept, and between a better social competence and increasing physical fitness. Accompanying psychosocial care, therefore, rightly remains an important pillar of obesity therapy.
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BACKGROUND: The diverse stages of the COVID-19 pandemic led to several social circumstances that influenced daily life and health behavior. PURPOSE: To evaluate changes in cardiovascular risk factors and physical activity among children and young adults with type 1 diabetes (T1D) during the COVID-19 pandemic in Germany compared to previous years. METHODS: A total of 32 785 individuals aged 6-21 years at baseline with T1D from the German diabetes patient follow-up (DPV) registry contributed data on 101 484 person-years between 2016 and 2021. The first treatment year of each individual within this period was considered as baseline. Based on trends from 2016 to 2019, we estimated differences in body mass index-SD score (BMI-SDS), blood pressure (BP-SDS), and lipid levels (non-high-density lipoprotein [non-HDL]) between observed and predicted estimates for the years 2020 and 2021 using linear regression analysis standardized for age, diabetes duration, sex, and migratory background. The proportion doing organized sports and smoking cigarettes was analyzed using multivariable logistic regression models. RESULTS: BMI-SDS increased constantly from 2016 to 2021 without a significant increase above expected values for 2020/2021. Systolic BP-SDS (difference observed vs. expected with 95% confidence interval, 2020: 0.10 [0.07-0.14], 2021: 0.17 [0.14-0.20]) and non-HDL (2020: 2.7 [1.3-4.1] mg/dl, 2021: 4.1 [2.7-5.5] mg/dl) were significantly increased (all p < .001) in both pandemic years. The proportion of subjects participating in organized sports was reduced from over 70% in prepandemic years to 35%-65% in diverse stages/waves of the COVID-19 pandemic. The percentage smoking cigarettes did not change. CONCLUSIONS: We describe an increase in BP and atherogenic lipid levels coinciding with a reduction in physical activity but no acceleration of the prepandemic increases in BMI-SDS among young people with T1D during the COVID-19 pandemic.
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COVID-19 , Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 1 , Humanos , Niño , Adulto Joven , Adolescente , Pandemias , Factores de Riesgo , Índice de Masa Corporal , Factores de Riesgo de Enfermedad Cardiaca , Lípidos , Sistema de RegistrosRESUMEN
BACKGROUND: Networks are an essential component of community-based health research. Community-based networks require a high degree of collaboration, and the quality of this collaboration is a key factor for intervention success. As such, it is important to measure collaboration quality through network evaluation. Established tools, such as social network analysis, primarily measure connections between network members as opposed to network quality. Additionally, only few tools developed for this purpose are used in practice. METHODS: This paper describes the process of developing a network assessment tool to measure the quality of network collaboration in practice. To this end, we collaborated with practice partners from a community-based health promotion network and the community health service. We adopted a mixed-methods approach consisting of a literature review and a needs assessment involving practical experts in Germany. On this basis, we developed a new network evaluation tool, the Self-Evaluation Tool for Network Quality Assessment by Practitioners in Community Health Promotion (SNAP-HP), in cyclic-iterative collaboration with our practice partners. CONCLUSIONS: The next steps include piloting, evaluating, and adapting the SNAP-HP for final open access.
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Investigación Participativa Basada en la Comunidad , Autoevaluación Diagnóstica , Humanos , Salud Pública , Redes Comunitarias , Promoción de la Salud/métodosRESUMEN
Addressing physical literacy (PL) has become increasingly relevant to counteract sedentary behaviour in children and youth. We developed an assessment tool to measure and evaluate the promotion of individual PL and its four subdomains: motivation and confidence (the affective dimension), physical competence (physical dimension), knowledge and understanding (cognitive dimension), and participation in physical activity. Within this cross-sectional study, we tested 567 children aged 6−12 years from four primary schools that differed in socioeconomic status (SES). A subsequent exploratory factor analysis conducted to examine the conformity revealed a five-factor structure. The five factors explained 39.8% of the total cumulative variance. Children with a low SES yielded lower scores in all subdomains except participation in physical activity. This effect was most pronounced in motor skills (p < 0.001, r = 0.28). Among the children with a low SES, 16.9% were overweight and 17.4% were obese, compared to 11.5% and 5.4%, respectively, for those with a high SES (p < 0.001). In conclusion, although the assessment tool was largely in line with the postulated structure, further adjustments are necessary in terms of participation and motivation. Nevertheless, this holistic view of PL, taking SES into account, should enable the focused promotion of health and health literacy.
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Background: Instrument-assisted manual therapy (IAMT) is indicated to improve flexibility, reduce pain, and induce hyperaemia locally and along myofascial chains. The underlying effects are largely unclear. This randomised, placebo-controlled pilot study aimed to gain first insights into these effects, primarily on the structural level, through ultrasonography. Methods: 67 healthy female soccer players aged 20.9 (±3.9) years were examined after right lumbar intervention (IAMT: intervention group (IG), heat application: comparison group (CG), pressure-less placebo: placebo group (PG)). Ultrasonography (absolute movement and shear motion), flexibility tests (passive straight leg raise test (PSLR), lumbar and thoracic double inclinometry), and superficial skin temperature were recorded before (t0), immediately (t1) and 45 min after the intervention (t2). Results: IAMT decreased the absolute mobility of the superficial lamina and its shear motion to the superficial fascia compared with the PG (t1; p < 0.05). PSLR improved in the IG compared with the CG (t2) and PG (t1, t2; p < 0.05). The temperature increased in the IG and CG compared with the PG (t1, t2) and in the CG compared with the IG (t1; p < 0.05). Conclusion: IAMT of the lumbar back briefly reduces absolute mobility of the superficial lamina and its shear motion to the superficial fascia, improves flexibility, and increases the temperature.
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OBJECTIVES: To estimate the awareness, implementation and difficulty of behavioural recommendations and their correlates in officially ordered domestic isolation and quarantine during the COVID-19 pandemic. DESIGN: Online retrospective cohort survey conducted from 12 December 2020 to 6 January 2021 as part of the Cologne-Corona Counselling and Support for Index and Contact Persons During the Quarantine Period study. SETTING: Administrative area of the city of Cologne, Germany. PARTICIPANTS: 3011 infected persons (IPs) and 5822 contacts over 16 years of age who were in officially ordered domestic isolation or quarantine between 28 February 2020 and 9 December 2020. Of these, 60.4% were women. OUTCOME MEASURES: Self-developed scores were calculated based on responses about awareness and implementation of 19 behavioural recommendations to determine community-based and household-based adherence. Linear regression analyses were conducted to determine factors influencing adherence. RESULTS: The average adherence to all recommendations, including staying in a single room, keeping distance and wearing a mask, was 13.8±2.4 out of 15 points for community-based recommendations (CBRs) and 17.2±6.8 out of 25 points for household-based recommendations (HBRs). IPs were significantly more adherent to CBRs (14.3±2.0 points vs 13.7±2.6 points, p<0.001) and HBRs (18.2±6.7 points vs 16.5±6.8 points, p<0.001) than were contact persons. Among other factors, both status as an IP and being informed about the measures positively influenced participants' adherence. The linear regression analysis explained 6.6% and 14.4% (corr. R²) of the adherence to CBRs and HBRs. CONCLUSIONS: Not all persons under official quarantine were aware of the relevant behavioural recommendations. This was especially true in cases where instructions were given for measures to be taken in one's own household. Due to the high transmission rates within households, HBRs should be communicated with particular emphasis.
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COVID-19 , Cuarentena , Femenino , Humanos , Masculino , COVID-19/epidemiología , COVID-19/prevención & control , Pandemias/prevención & control , Estudios Retrospectivos , SARS-CoV-2RESUMEN
BACKGROUND: SARS-CoV-2 has been spreading worldwide since late 2019. Before vaccines became available, exclusively non-pharmaceutical measures were used to prevent transmission of infection. Despite the fact that vaccinations are now available, it is still important to identify relevant transmission routes in order to contain the COVID-19- or further pandemics. Therefore, this study aims to systematically analyse data from the largest public health department in Germany to determine the significance of the various known and unknown transmission situations in terms of the proportion of infections. METHODS: All infections in Cologne were systematically recorded by the local health department. In addition to clinical data, the transmission situations were recorded and categorised as pertaining to social contact, work contact, travellers, health care workers, users of educational institutions, visitors of community institutions, infection in the context of medical treatment, and unknown infection. FINDINGS: The analysis included 25,966 persons. A transmission situation could be identified in 82.7% of the cases (n = 21,477). Most persons (42.1%) were infected due to social contact, primarily within their own household. Another 22.3% were infected at their place of work; this was particularly common among staff members of medical facilities, nursing homes and educational institutions. In 17.3% of the cases, the transmission situation remained unknown; the cases with unknown transmission situation were slightly more often symptomatic (75.2%) than the cases with known transmission situation (69.4%). INTERPRETATION: Considering that during the study period the leading strains were the wild-type and alpha-variant transmission rather occurred during scenarios involving close contacts than in anonymous situations. Presumably, however, the findings can be transferred to the new variants. Therefore, in order to prevent transmission, besides vaccination regular antigen tests and/or appropriate protective measures remain relevant until this pandemic has subsided.
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COVID-19 , COVID-19/epidemiología , Trazado de Contacto , Humanos , Pandemias/prevención & control , Salud Pública , SARS-CoV-2RESUMEN
Since its first description in November 2021, the SARS-CoV-2 variant of concern Omicron (B.1.1.529) has emerged as the dominant strain in the COVID-19 pandemic. To date, it remains unclear if boosted vaccination protects against transmission. Using data from the largest German Public Health Department, Cologne, we analyzed breakthrough infections in booster-vaccinated infected persons (IP; booster-vaccinated group (BVG); n = 202) and fully vaccinated, not boosted SARS-COV2-positive patients (>3 month after receiving the second dose; unboosted, fully vaccinated group (FVG); n = 202) to close contacts compared to an age- and sex-matched unvaccinated control group (UCG; n = 202). On average, IPs had 0.42 ± 0.52 infected contacts in relation to the total number of contacts in the BVG vs. 0.57 ± 0.44 in the FVG vs. 0.56 ± 0.43 in the UVG (p = 0.054). In the median test, pairwise comparison revealed a significant difference between the BVG and both other groups; no difference was found between the fully vaccinated and the unvaccinated control group. Now, these findings must be verified in larger samples, considering the role of Omicron subvariants and the vaccination status of the contact person. However, the importance of the booster vaccination in breaking possible chains of infection in the immune escape variant Omicron is obvious.