title: Effects of different set configurations on barbell velocity and displacement during a clean pull.
abstract: The effects of 3 types of set configurations (cluster, traditional, and undulating) on barbell kinematics were investigated in the present study. Thirteen men (track and field = 8; Olympic weightlifters = 5) (mean +/- SEM age, 23.4 +/- 1.1 years; height, 181.3 +/- 2.1 cm; body mass, 89.8 +/- 4.2 kg) performed 1 set of 5 repetitions in a cluster, traditional, and undulating fashion at 90 and 120% of their 1 repetition maximum (1RM) power clean (119.0 +/- 4.3 kg). All data were collected at 50 Hz and analyzed with a V-Scope Weightlifting Analysis System. Peak velocity (PV) and peak displacement (PD) were analyzed for each repetition and averaged for each set type. Results indicated that a significantly (p < 0.016) higher PV occurred during the cluster set when compared with the traditional sets at both intensities. PD was significantly higher than traditional sets at the 120% intensity. The present study suggests set configuration can affect PV and PD during clean pulls.
authors.affiliation: Strength Research Laboratory, Midwestern State University, Wichita Falls, Texas 76308, USA. greg.haff@mwsu.edu
authors.forename: G Gregory
authors.initials: GG
authors.lastname: Haff
authors.forename: Adrian
authors.initials: A
authors.lastname: Whitley
authors.forename: Lora B
authors.initials: LB
authors.lastname: McCoy
authors.forename: Harold S
authors.initials: HS
authors.lastname: O'Bryant
authors.forename: J Lon
authors.initials: JL
authors.lastname: Kilgore
authors.forename: Erin E
authors.initials: EE
authors.lastname: Haff
authors.forename: Kyle
authors.initials: K
authors.lastname: Pierce
authors.forename: Michael H
authors.initials: MH
authors.lastname: Stone
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D001823:Body Composition; D006801:Humans; D008297:Male; D014891:Weight Lifting / Q000502:physiology*