Snatch technique of collegiate national level weightlifters.
Bar trajectory during weightlifting movements is related to the position of the body during the lift and the displacement of the feet during the drop-under phase. The purpose of this study was to examine anterior-posterior foot displacement and its relationship with performance in the snatch of collegiate weightlifters. Snatch attempts of men weightlifters from the 1998 U.S.A. Weightlifting Collegiate National Championships were analyzed for horizontal displacement of the feet by video analysis. Lifts were analyzed under 2 conditions: all lifts combined and the heaviest successful attempt for each lifter. Lifts (n = 74) were placed into 4 groups: forward displacement (FD, >2.5 cm); no displacement (ND, +/-2.5 cm); rearward displacement (RD, >2.5 cm); and those that showed asymmetric (AS, >7 cm difference in right and left foot) displacement of the feet. Chi-square revealed no significant difference in success rate between groups for all attempts. No statistically significant differences were noted between groups in body mass to bar mass ratio or Sinclair formula for heaviest successful attempts. Results indicate that foot displacement did not significantly affect snatch success or lifting ability in collegiate national level lifters.
Schilling
Brian K
BK
University of Memphis, Memphis, TN 38111, USA. schills@juno.com
Stone
Michael H
MH
O'Bryant
Harold S
HS
Fry
Andrew C
AC
Coglianese
Robert H
RH
Pierce
Kyle C
KC
D000328:Adult; D000704:Analysis of Variance; D000886:Anthropometry; D001696:Biomechanical Phenomena; D016009:Chi-Square Distribution; D006621:Hip Joint / Q000502:physiology; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D008297:Male; D010807:Physical Endurance / Q000502:physiology*; D011187:Posture; D012044:Regression Analysis; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical; D014891:Weight Lifting / Q000502:physiology*; D016474:Weight-Bearing