* ** *** 22 31 18.44m 1 2 3 4 3 5 4 3 6 6
176 7 8 7 9 7 10 11 12 12 13 21 O 32 19.8±1.1 18 21 21 11 10 12 18
177 14 BMI Body Mass Index 15 BC 118E TANITA 14 16 T 16 45 10kg 30 1RM Repetition Maximum 17 18 Jacoby
178 141.7-148.8g 22.9-23.5cm 10m m 0.5m 18.44m 1 3 m DSC-WX1 SONY ± Mann-Whitney U Pearson r 19 5 p<0.05 SPSS12.0JforWindows Book House HD 2008 Training Journal 10 12 16 20 21
179 14 16 20 21 F M a 22 Vmax 22 2 32 31 5.5kg
180 22 23 24 5 25
181
182 26 27 28 29 6
183 1 Book House HD 1 2006 2 33(Supplement_2) 373 2006 3 pp50-65 2009 4 3 2008 5 1 2009 6 3 2004 7 4 2006 8 9 2007 9 7 2004 10 5 2006 11 5 2003 12 3 2003 13 41(1) 23-37 1996
184 14 (2000) 2000 15 2001 16 (11) (1) ( ) 30(10) 46-49 Book House HD 2008 17 Bruno Pauletto 1993 18 pp191-194 2006 19 1986 20 (6) 30(5) 46-50 Book House HD 2008 21 (13) (3) ( AB ) 30(12) 46-49 Book House HD 2008 22 Book House HD 2 pp56-59 2006 23 pp10-11 1995 24 pp15-16 2002 25 9 2003 26 Book House HD 9 pp50-54 2006 27 Book House HD 8 pp20-23 2006 28 9 2002 29 1 2004
185 The purpose of this study was conducted on university baseball players to see how functions of their body trunk affect their pitching motions. As a result, a superior group of players who could throw a ball farther showed a higher level of the muscle bulk in all parts of a body composition such as height, weight, and chest, a longer distance to throw a medicine ball, and a stronger muscle of their back than the subordinate group. A superior group of players who had well balanced abdominal and back muscles showed a higher level of control than the subordinate group. In conclusion, it was suggested that a movement of the body trunk which transmitted strength from lower extremity to upper extremity is important for excellent pitching motions. Also, even though the muscle strength of abdominal and back muscles is important to throw a ball farther and faster, it is suggested that it is important to develop the abdominal and back muscles in a proper valance to throw a ball accurately. baseball, pitching motion, body trunk, university student