Abstract:
:The purpose of this study was to investigate differences in fat-free mass and thicknesses of various muscles among judo athletes of different performance levels. The subjects were 69 male judo athletes of 3 different performance levels. Group A was composed of athletes who participated in the Olympic Games or Asian Games (n = 13). Groups B (n = 21) and C (n = 35) were composed of judo athletes at a university who did or did not participate in intercollegiate competitions (including qualifying matches), respectively. Muscle and fat thicknesses were measured by B-mode ultrasound at 9 sites. Fat percentage was calculated from fat thicknesses using a previously reported equation. Fat-free mass was calculated from fat percentage and body weight. Muscles thicknesses were normalized to the height of the individual. Group A had significantly larger fat-free mass than Group C (p < 0.05). The normalized thicknesses of the elbow extensor and flexor muscles were significantly larger in Group A than in Group C. The normalized thickness of the elbow flexor muscle was significantly larger in Group A than in Group B. The results of this study showed that judo athletes with low performance levels such as those in Group C had lower fat-free mass, and the degree of development of the brachialis muscles differed according to performance level.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Kubo J,Chishaki T,Nakamura N,Muramatsu T,Yamamoto Y,Ito M,Saitou H,Kukidome Tdoi
10.1519/R-17054.1subject
Has Abstractpub_date
2006-08-01 00:00:00pages
654-7issue
3eissn
1064-8011issn
1533-4287pii
R-17054journal_volume
20pub_type
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