20th Annual Student Research Conference
Human Potential and Performance
Kinematic analysis of the snatch in weight lifting
Keith B. Painter
Dr. Alex J. Koch, Dr. Jerry Mayhew, and Dr. Michael Bird, Faculty Mentors
Several studies have investigated the kinematics of the snatch in weightlifting. With differing opinions as to proper technique, it has been difficult to assess what can predict a successful or unsuccessful lift. We used an infrared/ultrasound motion analyzer to track the barbell’s path on 75 snatch attempts from weightlifters at the Missouri State weightlifting meet to ascertain if we could predict success or failure of a lift. Variables analyzed included peak velocity of the first (pV1) and second pull (pV2), max velocity (pFy), time max velocity was reached, peak power, bar path and bar distance traveled. Logistic regression did not identify any variable as a significant determinant between successful and unsuccessful lifts. There was a tendency (p = .08-.13) for a higher pV2 and pFy, and a greater forward deviation in bar path in unsuccessful attempts. Other factors than measured appear to influence success or failure of a lift.
Keywords: snatch, weight lifting, kinematics, V-scope
Topic(s):Exercise Science
Presentation Type: Poster
Session: 2-8
Location: OP Lobby
Time: 4:15 pm