Compliance With Physical Activity and Sedentary Behavior Guidelines and Associations With Abdominal Adiposity in a Sample of Infants and Toddlers From Soweto, South Africa

Background: This study reported compliance with 24-hour physical activity and sedentary behavior guidelines, and associations with adiposity in the first 2 years of life. Methods: Participants (N = 119) were recruited from Soweto, South Africa. Visceral and subcutaneous abdominal adipose tissue was measured by ultrasound. Participation in 2 movement behaviors (physical activity and sedentary time) was reported by mothers. Differences in adiposity between those meeting each individual guideline, as well as the combination of both movement guidelines, compared with those not meeting the guidelines were assessed. Results: Only 5% of infants met the sedentary guidelines; however, 58% met the physical activity guidelines. Subcutaneous adipose tissue was significantly higher in those meeting the physical activity guideline (0.50 [0.01] vs 0.47 [0.01] cm, P = .03) compared with those not meeting the guideline. Meeting the screen time component of the sedentary guideline was associated with higher visceral adipose tissue (β = 0.96, P < .01), while meeting one guideline compared with meeting none was associated with higher subcutaneous adipose tissue (β = 0.05, P = .01). Conclusions: Most infants and toddlers from this low- to middle-income setting were not meeting sedentary behavior guidelines. Both behaviors were associated with abdominal adiposity, but not with body mass index z score; implying these movement behaviors may impact abdominal fat deposition rather than body size.

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Relationship Between Meeting 24-Hour Movement Guidelines and Cardiometabolic Risk Factors in Children

Journal of Physical Activity and Health ◽

10.1123/jpah.2017-0090 ◽

2017 ◽

Vol 14 (10) ◽

pp. 779-784 ◽

Cited By ~ 19

Author(s):

Peter T. Katzmarzyk ◽

Amanda E. Staiano

Keyword(s):

Physical Activity ◽

Risk Factors ◽

Blood Pressure ◽

Adipose Tissue ◽

Subcutaneous Adipose Tissue ◽

Cardiometabolic Risk ◽

Vigorous Physical Activity ◽

Density Lipoprotein ◽

Cardiometabolic Risk Factors ◽

Subcutaneous Adipose

Background:The purpose of this study was to evaluate the relationship between adherence to pediatric 24-hour movement guidelines (moderate to vigorous physical activity, sedentary behavior, and sleep) and cardiometabolic risk factors.Methods:The sample included 357 white and African American children aged 5–18 years. Physical activity, television viewing, and sleep duration were measured using questionnaires, and the 24-hour movement guidelines were defined as ≥60 minutes per day of moderate to vigorous physical activity on ≥5 days per week, ≤ 2 hours per day of television, and sleeping 9–11 hours per night (ages 5–13 y) or 8–10 hours per night (ages 14–18 y). Waist circumference, body fat, abdominal visceral and subcutaneous adipose tissue, blood pressure, fasting triglycerides, high-density lipoprotein cholesterol, and glucose were measured in a clinical setting.Results:A total of 26.9% of the sample met none of the guidelines, whereas 36.4%, 28.3%, and 8.4% of the sample met 1, 2, or all 3 guidelines, respectively. There were significant associations between the number of guidelines met and body mass index, visceral and subcutaneous adipose tissue, triglycerides, and glucose. There were no associations with blood pressure or high-density lipoprotein cholesterol.Conclusions:Meeting more components of the 24-hour movement guidelines was associated with lower levels of obesity and several cardiometabolic risk factors. Future efforts should consider novel strategies to simultaneously improve physical activity, sedentary time, and sleep in children.

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Distribution of Abdominal Obesity and Fitness Level in Overweight and Obese Korean Adults

International Journal of Endocrinology ◽

10.1155/2014/854392 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 3

Author(s):

Sue Kim ◽

Ji-Young Kim ◽

Duk-Chul Lee ◽

Hye-Sun Lee ◽

Ji-Won Lee ◽

...

Keyword(s):

Heart Rate ◽

Adipose Tissue ◽

Cardiorespiratory Fitness ◽

Abdominal Obesity ◽

Subcutaneous Adipose Tissue ◽

Abdominal Adiposity ◽

Obese Adults ◽

Fitness Level ◽

Recovery Heart Rate ◽

Subcutaneous Adipose

Background.Abdominal obesity and its relative distribution are known to differ in association with metabolic characteristics and cardiorespiratory fitness. This study aimed to determine an association between fitness level and abdominal adiposity in overweight and obese adults.Methods.228 overweight and obese individuals were classified as either cardiorespiratory unfit or fit based on their recovery heart rate. Visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), the visceral-to-subcutaneous adipose tissue ratio (VAT/SAT ratio), and cardiometabolic characteristics were analyzed to examine the relationship between recovery heart rate and abdominal adiposity components.Results.After adjustments for age and sex, significant relationships of recovery heart rate and VAT, SAT, and VAT/SAT ratio were found; however, SAT was not significantly associated after further adjustment for body mass index (BMI) (r=0.045,P=0.499), whereas VAT (r=0.232,P<0.001) and VAT/SAT ratio (r=0.214,P=0.001) remained associated. Through stepwise multiple regression analyses after adjustment for age, sex, BMI, lifestyle factors, mean blood pressure, fasting glucose, HOMA-IR, lipid profiles, and hsCRP, recovery heart rate was identified as an independent variable associated with VAT (β=0.204,P<0.001) and VAT/SAT ratio (β=0.163,P=0.008) but not with SAT (β=0.097,P=0.111).Conclusions.Cardiorespiratory fitness level is independently associated with VAT and the VAT/SAT ratio but not with SAT in overweight and obese adults.

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