Physical Activity and Sedentary Behavior Are Independently Associated with Weight in Korean Adolescents

Cho, Kang Ok; Lee, Sukho; Kim, Yeon Soo

doi:10.15280/jlm.2014.4.1.47

Cited by 6 publications

(6 citation statements)

References 26 publications

(30 reference statements)

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“…Consistent with prior Western and South Korean singleton samples (e.g. Cho et al, 2014;Sallis et al, 2000), this study showed that the prevalence of vigorous exercise was higher in males than in females. This study further showed that sex difference was driven largely by differences in the extreme groups (i.e.…”

Section: Discussionsupporting

confidence: 90%

Genetic and Environmental Influences on Vigorous Exercise in South Korean Adolescent and Young Adult Twins

Hur

2021

Twin Res Hum Genet

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Twin studies of physical exercise for Asian twins are sparse. This study aimed to examine genetic and environmental influences on frequency of vigorous exercise (FVE) in South Korean twins, with a special emphasis on sex effects. Telephone interviews on FVE were administered to 1757 twins (mean age = 19.05 years, SD = 3.01 years). Tetrachoric correlations were significantly different between monozygotic (MZ) and dizygotic (DZ) twins in males (.40 vs. .12), but they were similar in females (.44 vs. .45), suggesting the importance of genetic factors in FVE in males and that of common environmental factors in females. A scalar sex-limitation model incorporating age as a modifier was applied to data. The results revealed that genetic, common and individual environmental influences did not vary significantly with age, but differed across two sexes, confirming twin correlational analyses. In the best-fitting model, additive genetic and individual environmental influences on FVE were, respectively, .35 (95% CI [.26, .39]) and .65 (95% CI [.61, .74]) in males, and common and individual environmental influences were, respectively, .45 (95% CI [.35, .53]) and .55 (95% CI [.47, .65]) in females. These results contrasted starkly with recent findings from a large sample of Chinese adult twins (age >18 years), in which most variance (≥95%) of vigorous physical activity was attributable to common environmental influences in both sexes. Replications in other Asian samples are clearly needed.

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Section: Discussionsupporting

confidence: 90%

Genetic and Environmental Influences on Vigorous Exercise in South Korean Adolescent and Young Adult Twins

Hur

2021

Twin Res Hum Genet

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“…India scored a C for sedentary activity in its 2016 Report Card on Physical Activity, with only half of Indian children meeting sedentary behavior guidelines (Katapally et al, 2016). Given that sedentary behavior has been associated with childhood adiposity independent of physical activity (Cho, Lee, & Kim, 2014; Xue et al., 2016), it is important that policies and interventions aim at reducing time spent on sedentary activities while encouraging PA.…”

Section: Discussionmentioning

confidence: 99%

Physical Activity Among Adolescents in India: A Qualitative Study of Barriers and Enablers

et al. 2018

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Inadequate physical activity (PA) levels are reported in Indian youth, with lowest levels among adolescents, particularly girls. We aimed to identify barriers to and enablers of PA among school children in New Delhi and examine potential differences by gender and school type (government vs. private). A total of 174 students (private school students = 88, 47% girls; government school students = 86, 48% girls) aged 12 to 16 years from two Delhi schools participated in 16 focus group discussions (FGDs) conducted by bilingual moderators. We conducted FGDs separately for girls and boys, for students in Grades VIII and IX, and for private and government schools. We conducted FGDs among government school students in Hindi and translated the transcriptions to English for analysis. We coded transcriptions using a combination of inductive and deductive approaches, guided by the "youth physical activity promotion model." We identified various personal, social, and environmental barriers and enablers. Personal barriers: Private school girls cited body image-related negative consequences of PA participation. Social barriers: Girls from both schools faced more social censure for participating in PA. Environmental barriers: Reduced opportunity for PA in schools was commonly reported across all participants. Personal enablers: All participants reported perceived health benefits of PA. Social enablers: Several participants mentioned active parents and sports role models as motivators for increasing PA. Few environmental enablers were identified. This study highlights the need for further investment in physical activity within schools and for gender-sensitive policies for encouraging PA participation among adolescents in India.

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“…This confirmed what our HPE faculty have observed qualitatively for decades and conforms recent results from Cho, Lee, & Kim. 21 Thus it is not surprising that the relationship between Steps and BMI is better described by a quadratic model rather than linear one, see Figure 2.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, individuals who are less physically active had higher maximum heart rates than those who were more active, indicative of increased cardiac workload. 20 Cho, Lee, & Kim 21 compared PA and sedentary behaviors with the BMI of Korean adolescent students. Using World Health Organization Asia-Pacific (AP) standards of obesity, it was found that significantly fewer students with a BMI of 18.5 kg · m -2 or lower (AP underweight) or 23.0 kg · m -2 and higher (AP overweight and obese) met the PA requirements than the students with a BMI between 18.5 kg · m -2 and 23.0 kg · m -2 (AP normal).…”

Section: Introductionmentioning

confidence: 99%

The Impact of Body Mass Index on Physical Activity and Cardiac Workload

Bloom

Brown

Jost

et al. 2021

Preprint

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Background: Having an abnormal body mass index (BMI) adversely affects cardiac workload and level of physical activity. Objective: To examine the relationship between cardiac workload, physical activity, Sex, and BMI. Methods: The number of steps taken per day (Steps) and minutes per week spent in targeted heart rate zones were collected from primarily first and second year university students (n = 1,801; 62% female) over a standard, 15-week long semester. Other data collected included BMI, Sex, Age, and Class Standing. Sex differences in BMI, Steps, and training heart rate zone (heart rates above 50% of max) minutes (THR) were evaluated, correlations between the study parameters were analyzed, and one-way ANOVA was used to test between competing models. The values p < .05 were considered statistically significant. Results: Statistically significant (p < .05) differences between males and females were found for Steps, THR, and BMI. Males were more physically active but spent 18% less time with heart rates above 50% of max. Students who had abnormal BMI values, both low and high, experienced greater cardiac workload (p < .05), even though they were found to be less physically active (p < .05). Conclusion: Our study revealed that university students with abnormal BMI values experienced greater cardiac workload, even though they are less physically active. Thus, physical fitness and healthy lifestyle interventions should also include underweight students in addition to students who are overweight or obese.

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Physical Activity and Sedentary Behavior Are Independently Associated with Weight in Korean Adolescents

Cited by 6 publications

References 26 publications

Genetic and Environmental Influences on Vigorous Exercise in South Korean Adolescent and Young Adult Twins

Genetic and Environmental Influences on Vigorous Exercise in South Korean Adolescent and Young Adult Twins

Physical Activity Among Adolescents in India: A Qualitative Study of Barriers and Enablers

The Impact of Body Mass Index on Physical Activity and Cardiac Workload

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