EQOL Journal (2019) 11(2):
ORIGINAL ARTICLE
Physical activity and screen time among children and adolescents in Kazakhstan
Kwok Ng 1, 2 ✉ • Shynar Abdrakhmanova 3 • Assel Adayeva 3
Received: 14th May, 2019 |
DOI: 10.31382/eqol.191202 |
Accepted: 5th July, 2019 |
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© The Author(s) 2019. This article is published with open access. |
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Abstract
Evidence is lacking that describe the status of physical activity (PA) behaviours among adolescents in Kazakhstan. The aims of the study are to examine the associations between PA and screen time behaviours (STB) among children and young adolescents in Kazakhstan.
Data were pooled from the 2015/16 Childhood Obesity Surveillance Initiative (COSI) study (N=4932, 49.8% girls, mean (age)=8.77 SD (age) =0.68) and the 2017/18 Health Behaviour in School- aged Children (HBSC) study (N=4153, 49.3% girls, Mean(age)=12.93 SD (age)=1.64). Both studies carried out a
through
✉kwok.ng@hbsc.org
1University of Eastern Finland, School of Educational Sciences and Psychology, Joensuu, Finland
2University Limerick, Department of Physical Education and Sport Sciences, Limerick, Ireland
3National Center of Public Health,
The number of children and young adolescents who met the PA recommendations reduced among children aged 9y (68.1%), to young adolescents aged 11y (35%), 13y (37%) and 15y (31%). Similarly, there was a reduction in the proportion of adolescents who met the STB recommendations between the ages of 9y (75%), 11y (60%), 13y (53%), and 15y (47%).
Despite some limitations in the methodologies between the COSI and HBSC surveys, and reporting of behaviours, there is a clear pattern that health promoting activities lowers as children transition into young adolescents.
Keywords physical activity • children • adolescents • sedentary behaviour.
Introduction
Taking part in daily physical activity during childhood is protective to noncommunicable diseases (WHO, 2010). It is recommended that children and adolescents aged between 5y – 18y old take part in at least 60 minutes of moderate to vigorous physical activity (MVPA) every day to achieve benefits for physical, social and mental health (Janssen & LeBlanc, 2010). Therefore, the scientific literature defines physical inactive children and adolescents as individuals who do not meet the recommended levels of physical activity (Tremblay et al., 2017). It is during childhood that individuals typically spend the most amount of time being physically active compared to other ages (Dumith, Gigante, Domingues, & Kohl,
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2011; Koski & Zacheus, 2012). Yet, as children mature into young adolescents, other behaviours and habits form such as watching television (Tremblay et al., 2011). However, because the MVPA and TV viewing behaviours are independent of each other, although these behaviours may seem to be opposite to each other (van & Hillsdon, 2017), it does not mean that individuals do not participate in sufficient MVPA if they watch excess of the recommended 2h limit of screen time per day (Battakova, 2016; Mitchell, Daniel, Schmitz, & Audrain‐McGovern Janet, 2013). Despite its independence, these two behaviours are associated with obesity, poor fitness levels and low
The latest information that was fed into the Global Matrix 3.0 of physical activity report cards consisted of 49 countries from around the world and included a mix of countries from low, middle and high income (Aubert et al., 2018). It has served as a monitoring tool for national policy makers and can be used to see progress every two years in the participating countries. More countries are needed to provide a more comprehensive global surveillance, for example data the areas around the Caspian Sea are missing. Kazakhstan is the largest landlock country in the world with a population of under
Although in Kazakhstan physical education has been mandated in the curriculum, it was not until 2012, when the number of lessons per week increased from two to three (Ministry of Culture and Sport of the Republic of Kazakhstan, 2018). The infrastructure and increased curriculum time may have contributed to the stable rate of active children and adolescents involved in out of school PA and sports at sports schools (Ministry of Culture and Sport of the Republic of Kazakhstan, 2019). About 37% of schools have a need for sports equipment. There are still some areas, particularly in rural areas whereby every fifth school does not have indoor facilities for physical education (Nurlanov et al., 2018). Based on national data on screen time of young adolescents, over half (55.3%) spent more than two hours per day watching TV (Battakova, 2016). It is not known how these behaviours act independently or dependently on physical activity levels.
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The level of childhood obesity in Kazakhstan is lower than in the Western countries (WHO Regional Office for Europe, 2018). One of the action plans is the “Densaulyk” (State health development program)
Surveillance from the effects of the infrastructure and programming changes are needed to report back to the policy makers. One way to do this is to carry out national representative surveys of children and young adolescents’ level of physical activity and sedentary behaviours. As children develop into adolescents, the individual goes through many physical, social, mental changes (Hall, 1931) which needs to be considered when promoting activities such as physical activity that require bodily expression, social skills and resilience (Patton et al., 2016). Therefore, the purpose of this study is to report the levels of physical activity and sedentary behaviour from two national representative surveys in Kazakhstan
Method
Secondary data analyses on two studies were used for this study. The WHO European Childhood Obesity Surveillance Initiative (COSI) study had data of 8- years old. The Health Behaviour in
COSI data
In
EQOL Journal (2019) 11(2):
5 regions of Kazakhstan (Central, Northern, Southern, Western, Eastern Kazakhstan) and two cities of national importance. A
The minimum sample size at which national representative estimates was obtained to meet the expected accuracy requirements is 2,800 children (1,400 girls and 1,400 boys) of the same age. Considering that 70% of children in the 3rd and 4th grades belong to the target age group, the total minimum number of children in the planned sample of 4,200 respondents allowed us to get the required number of children aged
The COSI study involves anthropometric measures on the children
The COSI study is conducted according to the guidelines laid down in the Declaration of Helsinki
and all procedures involving human subjects were approved by the local ethics committee at each study site. Parents were fully informed about the study procedures. In some countries, parents had to provide written signed consent to allow their children to participate in the study
HBSC data
In the
The planned sample size for each age category of 11-
After cleaning, verification, validation of data, the data sample was N=6548. Further checks were carried out so that only young adolescents in the targeted age categories of
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EQOL Journal (2019) 11(2):
Table 1. COSI and HBSC Sample demographics
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|
|
Gender |
|
|
|
Total |
||
|
Boys |
|
|
|
|
Girls |
|
|
|
|
|
|
|
|
|
|
|
||
|
N |
% |
|
|
N |
% |
|
N |
% |
COSI |
|
|
|
|
|
|
|
|
|
1299 |
50.7 |
1265 |
49.3 |
2564 |
100 |
||||
Rural |
382 |
29.4 |
363 |
28.7 |
745 |
29.1 |
|||
Urban |
917 |
70.6 |
902 |
71.3 |
1819 |
70.9 |
|||
HBSC |
|
|
|
|
|
|
|
|
|
745 |
35.4 |
725 |
35.4 |
1 470 |
35.4 |
||||
713 |
33.9 |
649 |
31.7 |
1 362 |
32.8 |
||||
647 |
30.7 |
674 |
32.9 |
1 321 |
31.8 |
||||
Rural |
955 |
54.6 |
893 |
56.4 |
1848 |
55.5 |
|||
Urban |
1150 |
45.4 |
1155 |
43.6 |
2305 |
44.5 |
|||
Total |
2 105 |
100% |
2048 |
100 |
4 153 |
100 |
Participants completed the surveys voluntarily and provided assent for the data to be used for research purposes. Responses were completely anonymous and data collection was approved by the ethical committee of the National Healthy Lifestyle Center. Parental (or guardian) consent approach was used. Children were informed about their rights whether or not to participate in the survey in written form.
Instruments
COSI questions
Parents were asked to complete categorical questions about their child’s usual behavior in physical activity. The question was: “In his/her free time, how many hours per day your child usually play actively/vigorously (e.g. running, jumping outside or moving and fitness games inside)?” The parents needed to respond to the question based on weekdays and weekends separately. The response options were, “never at all”, “less than 1 hour per day”, “About 1 hour per day”, “About 2 hours per day”, “About 3 or more hours per day”. The data were recategorized into children who are inactive when the child spends less than 1 hour per day or never at all and categorized as active for the other three options.
Parents were also asked to complete a question about TV viewing time. The question: “Outside school lessons, how much time does your child usually spend watching TV or using electronic devices such as computer, tablet, smartphone or other electronic device (not including moving or fitness games), either at home or outside home (e.g Internet cafes, game centres etc.)?” Parents had to estimate the number of hours per day during the weekdays and separately for the weekend. Data were categorized
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into meeting the screen time recommendations of less than 2 hours per day (Committee on Public Education, 2001).
HBSC questions
Young adolescents completed items about overall physical activity by reading an explanation of how physical activity is defined and the intensities of the physical activity ranging from moderate to vigorous. This technique has been used in many validation studies (Hardie Murphy, Rowe, Belton, & Woods, 2015; Prochaska, Sallis, & Long, 2001) for self- reporting physical activity in surveillance studies (Biddle, Gorely, Pearson, & Bull, 2011) and has acceptable reliability properties for use among young adolescents (Bobakova et al., 2015; Liu et al., 2012; Ng et al., 2019). There was a
Items related to screen time were also included in the HBSC study. The item related specifically to television use was divided into weekdays and weekends with the following question: “How many hours a day, in your free time, do you usually spend watching TV, videos (including YouTube or similar services), DVDs, and other entertainment on a screen?”. The response categories were, “None at all”, “About half an hour a day”, “About 1 hour a day”, “About 2 hours a day”, “About 3 hours a day”,
EQOL Journal (2019) 11(2):
“About 4 hours a day”, “About 5 hours a day”, “About 6 hours a day”, and “About 7 or more hours a day”. This question has acceptable reliability among young adolescents (Bobakova et al., 2015; Liu et al., 2012). Based on the guidelines for daily screen time limits of 2 hours, the data were dichotomized into meeting the TV screen time with responses of less than two hours, and those who exceeded TV viewing time when the reporting was two hours or more during the week days.
Pooling items
The data from COSI and HBSC were combined for analysis of physical activity and screen time behaviour. MVPA at least 60 minutes per day (WHO, 2010) was considered as a
For the screen time variable, the children in COSI and HBSC studies were grouped into two similar
groups: the first group is with children who usually spend less than 2 hours watching TV per a weekday and the second group consisted of children who usually spend 2 and more hours watching TV during
aweekday. Statistical analyses
Frequency analysis of data with elements of descriptive statistics and contingency tables with chi- square test were used to assess differences in gender, age, and rural/urban place of residence categories. All analyses were conducted using SPSS version 22.0 for Windows (SPSS Inc., Chicago, IL, USA).
Results
In Table 2 the proportion of physically active children decreased by age and was associated with urbanization level. Gender difference was statistically significant only for
9to 11- through
Table 2. Proportion of children and adolescents who met physical activity recommendations by age and urbanization level
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Gender |
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|
Total |
|
|
|
Place of residence |
|
|||||
|
Boys |
|
Girls |
|
|
|
|
Rural |
|
Urban |
|
||||
|
N |
% |
|
N |
% |
P |
N % |
|
N % |
|
N |
% |
P |
||
1251 |
69 |
1212 |
67.2 |
0.33 |
2463 |
68.1 |
476 |
65.8 |
1201 |
69.0 |
0.12 |
||||
Adolescents ** |
741 |
36.4 |
627 |
31.6 |
0.001 |
1368 |
34.0 |
674 |
37.2 |
695 |
31.5 |
<.001 |
|||
262 |
36.7 |
231 |
33.0 |
0.15 |
493 |
34.9 |
249 |
38.4 |
244 |
31.9 |
0.01 |
||||
263 |
38.2 |
220 |
35.0 |
0.24 |
483 |
36.7 |
225 |
37.9 |
259 |
35.8 |
0.43 |
||||
216 |
34.2 |
176 |
26.8 |
0.004 |
392 |
30.5 |
200 |
35.1 |
192 |
26.7 |
0.001 |
* Playing actively/vigorously for 1 or more hour/day. ** Daily MVPA of at least one hour
As children and adolescents got older, fewer spent less than 2 hours of TV viewing per day during weekdays (p<.001). Statistically significant gender difference was revealed for 11- and
conducted. As children age from 9 to adolescence, the prevalence of meeting screen time guidelines dropped significantly from 75.4%: to 60.3% at 11 year olds (p<0.001, χ2 = 14.5, df = 1.0); to 53.2% at 13 year olds (p<0.001, χ2 = 60.2, df = 1.0); to 47.3% at 15 year olds (p<0.001, χ2 = 121.6, df = 1.0).
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EQOL Journal (2019) 11(2):
Table 3. Proportion of children and adolescents who met the screen time recommendations of less than 2 hours per day
|
|
Gender |
|
|
|
|
Total |
|
|
Place of residence |
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
Boys |
Girls |
|
|
|
|
Rural |
|
Urban |
|
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|||||
|
N |
% |
|
N % |
P |
N % |
|
N % |
|
N % |
P |
|||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
875 |
72.9 |
|
915 |
78.0 |
0.19 |
1790 |
75.4 |
507 |
74.2 |
1069 |
63.2 |
<.001 |
||||
Adolescents |
1001 |
52.3 |
|
1064 |
55.4 |
0.055 |
2065 |
53.8 |
974 |
56.5 |
1092 |
51.7 |
0.003 |
|||
386 |
57.3 |
|
426 |
63.3 |
0.02 |
812 |
60.3 |
389 |
63.8 |
423 |
57.4 |
0.02 |
||||
331 |
50.5 |
|
347 |
56.1 |
0.04 |
678 |
53.2 |
319 |
55.8 |
360 |
51.2 |
0.11 |
||||
284 |
48.5 |
|
291 |
46.1 |
0.40 |
575 |
47.3 |
266 |
49.1 |
309 |
45.8 |
0.26 |
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Discussion
In this study we investigated the changes in physical activity and television viewing among national representative sample of children and young adolescents in Kazakhstan. To our knowledge, this is the first time that data has been used to report the levels of physical activity and TV viewing time of children and adolescents in Kazakhstan through national representative samples using data that is comparable with other international studies. The adoption of COSI and HBSC in Kazakhstan has played a pivotal role in the production of this study.
There was a large decline in physical activity and increase in TV viewing from children to adolescents and males were more active and sedentary than females. Unfortunately, this is a familiar finding across the globe (Aubert et al., 2018; Chen et al., 2018). Policy makers, practitioners and researchers have suggested various reasons for these declines, including more structured learning in schools as the children transition to secondary level education (De Meester, Van Dyck, De Bourdeaudhuij, Deforche, & Cardon, 2014), more social interaction through hobbies than prescribed activities organised by parents (Sebire et al., 2018) and sport activities become more competitive amongst others (Kokko, 2014). Yet, these trends have also been reported in younger age groups, for example in five European countries, there was a significant decline in physical activity and increase in sedentary behaviour between 6- and
behaviour change mechanisms can work effectively (Rutter, Cavill, Bauman, & Bull, 2019).
The data from this study supports the notion that the physical environment plays a role into the physical activity and sedentary behaviours of children and adolescents (Schmid, Pratt, & Witmer, 2006) because physical activity was higher for rural adolescents (particularly 11y- and 15y- olds) and screen time behavior was less prevalent among 9- and
Strengths and Limitations of the study
This study consists of data from two data sets that are frequently used for national reporting. There are limitations in that for the younger children there were proxy reporting by adults and their perceptions of their children’s behaviour, whereas for the adolescents, they completed the survey themselves. In both cases there is likely to be reporting bias, thus limiting the interpretation of the results. However, the extent on it is throughout the study and provides a
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EQOL Journal (2019) 11(2):
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How to cite this article:
Ng, K., Abdrakhmanova, S., & Adayeva, A. (2019). Physical activity and screen time
APA:among children and adolescents in Kazakhstan. Exercise and Quality of Life, 11(2),
Ng, Kwok, Shynar Abdrakhmanova and Assel Adayeva. "Physical activity and screen
MLA:time among children and adolescents in Kazakhstan." Exercise and Quality of Life 11.2 (2019):
Ng, Kwok, Shynar Abdrakhmanova, and Assel Adayeva. "Physical activity and
Chicago: screen time among children and adolescents in Kazakhstan." Exercise and Quality of Life 11, no. 2 (2019):
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