P885 - RELATIONSHIP OF HIGH INTENSITY SUMO TRAINING AND BODY MASS INDEX IN STUDENT SUMO WRESTLER

P885

RELATIONSHIP OF HIGH INTENSITY SUMO TRAINING AND BODY MASS INDEX IN STUDENT SUMO WRESTLER

Y. Aoto¹, M. Oka^1,*, T. Sato¹, M. Nakajima¹, Y. Takeishi², K. Nakajima³, M. Hasegawa¹

¹Jissen Women's University, Tokyo, ²Kyusyu Institute of Information Sciences , Fukuoka, ³Kiryu University, Gunma, Japan

Rationale: This study examines the interplay between obesity (BMI > 30), high-intensity physical training, and health, focusing on sumo wrestlers. Despite their high BMI, wrestlers engage in intense daily exercise combining resistance and aerobic training. This study aims to analyze their dietary intake, nutritional balance, and body composition to better understand the health implications of maintaining a high body weight while undergoing rigorous physical activity.

Methods: Fourteen college Sumo wrestlers (aged 21.5 ± 3.64 years, BMI 37.1 ± 5.47) participated in a study in Japan. Their diet primarily consisted of rice and chanko stew, and they typically skipped breakfast. Body composition analysis was performed using multi-frequency bioelectrical impedance analysis (Inbody S10, USA) in a supine position. Data on muscle mass, segmental muscle mass, and body water mass were collected and calculated to assess their physical makeup.

Results: No subjects exhibited a BMI within the normal range (under 25). The majority of subjects had a BMI exceeding 35, indicating obesity. However, muscle mass was observed to be greater than body fat mass. The average skeletal muscle index was 9.57 (S.D. 0.68), which is substantially higher than typical values for Asian populations.

Conclusion: Although Japanese subjects had higher-than-normal BMIs, they showed more muscle mass than fat. Their body water content, under 60%, may result from skipping breakfast. Muscle mass was notably high for their training duration compared to other sports. This study highlights BMI's limitations, emphasizing the need for analyzing muscle and lean fat mass for accurate obesity assessment.

References: Mizuki Nakajima,Takeshi Sato,Yousuke Takeishi, 2018, Effect of daily short term and high intensity training to the metabolic function in college sport student, Integrative food, Nutrition and Metabolism,Vol5(3),pp.1-4

Disclosure of Interest: None declared