Study on Current Levels of Physical Activity and Sedentary Behavior among Middle School Students in Beijing, China

Duan, Jiali; Hu, Huanhuan; Wang, Guan; Arao, Takashi

doi:10.1371/journal.pone.0133544

Cited by 51 publications

(77 citation statements)

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“…5,7 Similar to many other countries, 8 China suffers the burden of declining PA levels and increasing sedentary behavior among school-aged children, the likely result of broad social changes. [9][10][11] Shanghai, located on the east coast of China, is one of the biggest and most populous cities in both China and the world, with a population of more than 24 million. The proportion of children and youth from Shanghai (the most developed city in China) who meet the recommendation of 1 hour of MVPA everyday is very low.…”

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confidence: 99%

Results From Shanghai’s (China) 2016 Report Card on Physical Activity for Children and Youth

Yang¹,

Tang²,

Cao³

et al. 2016

Journal of Physical Activity and Health

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Background:Internationally comparable evidence is important to advocate for young people’s physical activity. The aim of this article is to present the inaugural Shanghai (China) Report Card on Physical Activity for Children and Youth.Methods:Since no national data are available, the working group developed the survey questionnaire and carried out the school surveys for students (n = 71,404), parents (n = 70,346), and school administrators and teachers (n = 1398). The grades of 9 report card indicators were assigned in accordance with the survey results against a defined benchmark: A is 81% to 100%; B is 61% to 80%; C is 41% to 60%, D is 21% to 40%; F is 0% to 20%.Results:The 9 indicators were graded as follows: Overall Physical Activity Levels (F), Organized Sport Participation (F), Active Play (D-), Active Transportation (C-), Sedentary Behavior (F), Family and Peers (B), School (B+), Community and the Built Environment (D+), and Government (D).Conclusions:Levels of physical activity and sedentary behavior were low and below the respective recommended guidelines. Interventions and policies at the community level should be encouraged to promote physical activity and reduce sedentary behavior. Future national surveys should be encouraged to strengthen Shanghai’s Report Card on Physical Activity for Children and Youth.

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confidence: 99%

Results From Shanghai’s (China) 2016 Report Card on Physical Activity for Children and Youth

Yang¹,

Tang²,

Cao³

et al. 2016

Journal of Physical Activity and Health

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“…These include: how much a child personally likes physical education classes, sports and extracurricular activities, parental support for and encouragement of physical activity, the availability of facilities and opportunities to be active, a school environment that encourages children to be active, administrative scheduling that allows for 60+ minutes per school day for physical activities, and assigning quantities of homework that restrict play outside of school hours (Ren, Zhou, Liu, Wang, & Yin, 2016;Rasberry, Lee, Robin, Laris, Russell, Coyle et al, 2011). These findings have been confirmed in a small number of regional surveys in China (Duan, Hu, Wang, & Arao, 2015;Wang, Hui, Terry, Ma, Cheng, Ding et al, 2016;Li, Dibley, Sibbritt, & Yan, 2006).…”

Section: Introductionmentioning

confidence: 71%

Effect of a Comprehensive Health Education Program to Increase Physical Activity among Primary School Students in China

Qian¹,

Yuen²,

Feng³

et al. 2018

APE

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China's National Physical Fitness and Health Surveillance (NPFHS) survey revealed high levels of sedentary behavior among primary school-aged children. Sedentary behavior is linked to both short-term and long-term physical and mental health conditions. A comprehensive school health education program was designed and its effectiveness to raise physical activity levels in Grade 4 primary school children was evaluated. Twelve schools (6 of program, 6 of control) from six cities in two economically different provinces were selected. Students at program schools received physical activity instruction both in and out of school. Control schools carried on with their usual level of physical activity for students, as required by national educational standards. Program effectiveness was assessed by comparing students' physical activity behaviors at pre-and post-program, and by comparing students' physical activity scores at program schools with students' scores at control schools. The pre-program survey of students' behaviors was done at the end of Grade 3, and the post-program survey was done at the end of Grade 4. Multi-level modeling was used to evaluate program effectiveness to allow for missing data. Results from 4472 students showed at pre-program there was no difference in control and program schools' student physical activity scores. At post-program students in program schools did significantly more physical activity compared to students in control schools. Students in program schools were more physically active after the comprehensive school health education program. A school-based comprehensive health education program would effectively increase children's physical activity level in China. There is a potential to reduce sedentary behavior among children by implementing school programs that are environmental in nature; that is, activities involve not only the students, but also the school administration, teachers, parents, and community members.

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“…The East Asian populations that may carry the MOTS-c K14Q SNP include around half a billion people in which the frequency of the m.1382A>C polymorphism varies from 5 to 8%. Sedentary behavior is alarmingly common in modern Asian cities 39 . The reported rate of diabetes in these countries is well over 10%, and rising rapidly 40 , suggesting that several million men with T2D carry the kinesio-genomic MOTS-c SNP.…”

Section: Discussionmentioning

confidence: 99%

A Pro-Diabetogenic mtDNA Polymorphism in the Mitochondrial-Derived Peptide, MOTS-c

Zempo

Kim

Fuku

et al. 2019

Preprint

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49Type 2 Diabetes (T2D) is an emerging public health problem in Asia. An Asian mitochondrial DNA 50 variation m.1382A>C (rs111033358) leads to a K14Q amino acid replacement in MOTS-c, an 51 insulin sensitizing mitochondrial-derived peptide. Meta-analysis of three cohorts (n=27,527, J-52 MICC, MEC, and TMM) showed that males but not females with the C-allele exhibit a higher 53 prevalence of T2D. Furthermore, in J-MICC, only males with the C-allele in the lowest tertile of 54 physical activity increased their prevalence of T2D, demonstrating a kinesio-genomic interaction. 55High-fat fed, male mice injected with MOTS-c showed reduced weight and improved glucose 56 tolerance, but not K14Q-MOTS-c treated mice. Like the human data, female mice were unaffected. 57Mechanistically, K14Q-MOTS-c leads to diminished insulin-sensitization in vitro. Thus, the 58 m.1382A>C polymorphism is associated with susceptibility to T2D in men, possibly interacting with 59 exercise, and contributing to the risk of T2D in sedentary males by reducing the activity of MOTS-c. 60 61 64 65The prevalence of type 2 diabetes mellitus (T2D) is growing dramatically. Over 400 million 66 individuals were diagnosed with T2D worldwide in 2015, and the International Diabetes Federation 67 projects that at least 600 million people will need to be treated for T2D by 2040 1 . However, treating 68 T2D is challenging because the disease etiology is genetically heterogeneous and varies among 69 ethnicities 2-4 . For example, a recent meta-analysis showed that T2D is 72% heritable (95% CI: 61-70 78%) 2 , and the Western Pacific Region -including China and Japan -makes up ~37% of the total 71 T2D diagnoses in the world 1 . This is particularly noteworthy because although East-Asian 72 populations have lower mean body mass index (BMI) than Caucasian populations, they have a 73 higher susceptibility to T2D compared to Caucasians 5 . Furthermore, when matched for BMI, East 74Asians have a greater percentage of body fat and a tendency for increased visceral adiposity 6 . 75T2D in Asian patients is characterized by early beta cell dysfunction, in contrast to Caucasian 76 populations that have more insulin resistance 7,8 . Thus, ethnicity-based DNA variations likely 77 influence the pathogenesis of T2D. 78While diabetes directly caused by mutations in mtDNA are extremely rare 9 , several genetic 79 analyses revealed that mtDNA polymorphisms contribute to T2D risk in both European and Asian 80 populations 10,11 . Notably, mtDNA sequences are more varied by ethnicity compared to nuclear 81 DNA sequences due to the 10-times higher mutation rate of mtDNA compared to nuclear DNA 82 12,13 . As a result, certain mtDNA polymorphisms could contribute to the T2D prevalence in different 83 ethnicities. The human mitochondrial genome consists of 16,569-base pairs and encodes 37 84 genes including 13 full size proteins involved in oxidative phosphorylation, 2 rRNA, and 22 tRNA 85 genes that are necessary for protein synthesis within the mitochondria. Genetic polymorphisms in 86 t...

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Study on Current Levels of Physical Activity and Sedentary Behavior among Middle School Students in Beijing, China

Cited by 51 publications

References 44 publications

Results From Shanghai’s (China) 2016 Report Card on Physical Activity for Children and Youth

Results From Shanghai’s (China) 2016 Report Card on Physical Activity for Children and Youth

Effect of a Comprehensive Health Education Program to Increase Physical Activity among Primary School Students in China

A Pro-Diabetogenic mtDNA Polymorphism in the Mitochondrial-Derived Peptide, MOTS-c

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