title: Dietary supplementation of high-performance Korean and Japanese judoists.
abstract: This research investigated patterns of the use of dietary supplement and doping awareness among high-ranked judoists from 2 countries. Korean (70 men and 31 women) and Japanese (37 men and 34 women) national judo team members were divided into 2 groups (high and low competitive performance levels) according to their international and national rankings. Fifty-nine percent of Korean and 61% of Japanese judoists consumed dietary supplements. Eighty-eight percent of high- and 51% of low-competitive-performance-level Korean judoists consumed dietary supplements. Sixty-eight percent of high- and 57% of low-competitive-performance-level Japanese judoists consumed dietary supplements. Oriental supplements (34%), vitamins (23%), and protein powder (12%) were the most commonly consumed dietary supplements in Korean judoists. Vitamins (45%), protein powder (33%), and minerals (15%) were the most commonly consumed dietary supplements in Japanese judoists. Thirty-eight percent of judoists from both countries had not received any proper education about antidoping, and 44% of judoists from both countries had not received knowledge of antidoping legislation. There was a significant difference in education about antidoping between high and low competitive-performance levels of Korean judoists (p < .001). Korean judoists received significantly less antidoping education than Japanese judoists (p < .001). The associations for antidoping education and knowledge of antidoping legislation with the use of dietary supplements were 3.46 (95% CI = 1.31-9.12) and 1.63 (95% CI = 0.71-3.76), respectively. Our findings showed that use of dietary supplements in judoists from both countries was increased after experiencing antidoping education.
authors.affiliation: Sports Science Inst., Korea National Sport University, Seoul, Republic of Korea.
authors.forename: Jongkyu
authors.initials: J
authors.lastname: Kim
authors.forename: Namju
authors.initials: N
authors.lastname: Lee
authors.forename: Jangwon
authors.initials: J
authors.lastname: Lee
authors.forename: Sung-Sook
authors.initials: SS
authors.lastname: Jung
authors.forename: Sung-Ki
authors.initials: SK
authors.lastname: Kang
authors.forename: Jong-Dae
authors.initials: JD
authors.lastname: Yoon
mesh_terms: D000293:Adolescent; D000328:Adult; D044466:Asian People; D056352:Athletes / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D019587:Dietary Supplements / Q000706:statistics & numerical data*; D004300:Doping in Sports; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007564:Japan; D008297:Male; D016139:Martial Arts; D056910:Republic of Korea; D011795:Surveys and Questionnaires; D014131:Trace Elements / Q000008:administration & dosage; D014815:Vitamins / Q000008:administration & dosage; D055815:Young Adult
chemical_list: D014131:Trace Elements; D014815:Vitamins