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Background and Study Aim. Physical fitness is a crucial health indicator in children and adolescents. Despite the global rise in overweight and obesity, the impact of Body Mass Index (BMI) on physical fitness remains unclear. This cross-sectional study aims to investigate: (R1) the differences in physical fitness components and physical activity levels among children according to gender and BMI, and (R2) the mediating role of physical activity in the relationship between BMI and physical fitness components. Material and Methods. The sample was made of 180 students aged 11-14 years (n=90 – male; n=90 - female) divided according to BMI cutoff in normal weight, overweight and obese. Physical fitness components were assessed with several tests: Standing Long Jump (SLJ), Medicine Ball Throw 2Kg (MBT), Shuttle Run 10x5m (10x5), and One Mile Walk Test. Physical activity levels were evaluated with a self-reported questionnaire. A two-way factorial MANOVA was conducted to assess the effects of gender and BMI on physical fitness. Additionally, a mediation analysis was performed to explore the effect of physical activity on the relationship between BMI and physical fitness. Results. Results revealed significant differences in the Standing Long Jump (SLJ), 10x5 Shuttle Run, One Mile Walk Test, and physical activity levels, with moderate to large effect sizes observed. Males demonstrated higher levels of physical fitness and physical activity levels (PAL) compared to females. Individuals of normal weight were generally more active and stronger than their overweight and obese peers. Mediation analysis revealed that physical activity completely mediates the relationship between BMI and physical fitness components. Conclusions. Results from the present study suggest that the development of physical fitness is not solely determined by BMI, but also depends on the daily practice of physical activity. Future research is needed to assess the effect of physical activity in mediating and moderating the relationship between obesity and physical fitness.
Background and Study Aim. Physical fitness is a crucial health indicator in children and adolescents. Despite the global rise in overweight and obesity, the impact of Body Mass Index (BMI) on physical fitness remains unclear. This cross-sectional study aims to investigate: (R1) the differences in physical fitness components and physical activity levels among children according to gender and BMI, and (R2) the mediating role of physical activity in the relationship between BMI and physical fitness components. Material and Methods. The sample was made of 180 students aged 11-14 years (n=90 – male; n=90 - female) divided according to BMI cutoff in normal weight, overweight and obese. Physical fitness components were assessed with several tests: Standing Long Jump (SLJ), Medicine Ball Throw 2Kg (MBT), Shuttle Run 10x5m (10x5), and One Mile Walk Test. Physical activity levels were evaluated with a self-reported questionnaire. A two-way factorial MANOVA was conducted to assess the effects of gender and BMI on physical fitness. Additionally, a mediation analysis was performed to explore the effect of physical activity on the relationship between BMI and physical fitness. Results. Results revealed significant differences in the Standing Long Jump (SLJ), 10x5 Shuttle Run, One Mile Walk Test, and physical activity levels, with moderate to large effect sizes observed. Males demonstrated higher levels of physical fitness and physical activity levels (PAL) compared to females. Individuals of normal weight were generally more active and stronger than their overweight and obese peers. Mediation analysis revealed that physical activity completely mediates the relationship between BMI and physical fitness components. Conclusions. Results from the present study suggest that the development of physical fitness is not solely determined by BMI, but also depends on the daily practice of physical activity. Future research is needed to assess the effect of physical activity in mediating and moderating the relationship between obesity and physical fitness.
BACKGROUND Overweight/obesity combined with depression among children and adolescents (ODCA) is a global concern. The bidirectional relationship between depression and overweight/obesity often leads to their comorbidity. Childhood and adolescence represent critical periods for physical and psychological development, during which the comorbidity of overweight/obesity and depression may increase the risk of adverse health outcomes. AIM To evaluate the relationship between ODCA, we conduct a bibliometric analysis to aid in formulating prevention and treatment strategies. METHODS From 2004 to 2023, articles related to ODCA were selected using the Science Citation Index Expanded from the Web of Science Core Collection. Bibliometric analysis of relevant publications, including countries/regions, institutions, authors, journals, references, and keywords, was conducted using the online bibliometric analysis platforms, CiteSpace, VOSviewer, and bibliometrix. RESULTS Between 2004 and 2023, a total of 1573 articles were published on ODCA. The United States has made leading contributions in this field, with Harvard University emerging as the leading contributor in terms of research output, and Tanofsky being the most prolific author. The J Adolescent Health has shown significant activity in this domain. Based on the results of the keyword and reference analyses, inequality, adverse childhood experiences, and comorbidities have become hot topics in ODCA. Moreover, the impact of balanced-related behavior and exploration of the biological mechanisms, including the potential role of key adipocytokines and lipokines, as well as inflammation in ODCA, have emerged as frontier topics. CONCLUSION The trend of a significant increase in ODCA publications is expected to continue. The research findings will contribute to elucidating the pathogenic mechanisms of ODCA and its prevention and treatment.
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