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KMID : 1101720210250030036
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Physical Activity and Nutrition
2021 Volume.25 No. 3 p.36 ~ p.43
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Comparative evaluation of obesity-related parameters in junior sumo wrestlers and children with obesity
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Ogawa Miori
Sagayama Hiroyuki
Tamai Shinsuke
Momma Reiko
Hoshi Daisuke
Uchizawa Akiko
Ichikawa Go
Arisaka Osamu
Watanabe Koichi
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Abstract
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Purpose: Exercise is a key factor in preventing obesity and metabolic syndrome. Sumo wrestlers increase their body size from childhood for athletic advantage; however, the risk of metabolic syndrome in junior sumo wrestlers is undetermined. Preventive measures against pediatric obesity should be initiated during childhood to prevent obesity in adulthood, considering its high global incidence. We comparatively evaluated the risk factors for metabolic syndrome in junior sumo wrestlers and children with obesity.
Methods: We enrolled 70 male children (age 9?17 years [sumo group, n = 14] and 9?14 years [other sports and non-exercise groups, n = 28 each]) and evaluated their anthropometric parameters (height, weight, body mass index z-score, obesity rate, waist circumference, waist to height ratio) and hematological parameters (total, low-density, high-density, and non-high-density lipoprotein-cholesterol; triglycerides; plasma glucose, and glycated hemoglobin levels).
Results: The BMI z-score, obesity rate, waist circumference (p < 0.05, along with the non-exercise group), and systolic blood pressure were significantly higher and the high-density cholesterol level was lower in the sumo group than in the other sports group (p < 0.05). The waist to height ratio was significantly higher in the non-exercise group than in the other sports group (p < 0.05). No significant difference was found in other blood lipid, plasma glucose (significantly lower level than the reference range in the sumo group, p < 0.05), and glycated hemoglobin (within the reference range in all groups) levels among the three groups.
Conclusion: Junior sumo wrestlers had a larger body size and higher blood pressure than children with obesity who exercised regularly. This provides direction for future research into targeted preventive interventions against metabolic syndrome for junior sumo wrestlers with large body size.
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KEYWORD
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junior overweight athlete, junior sumo wrestler, childhood obesity, childhood metabolic syndrome, exercise, obesity prevention, preventive interventions
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