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Effects of Different Set Configurations on Barbell Velocity and Displacement During a Clean Pull.

Haff, G. Gregory; WHITLEY, ADRIAN; MCCOY, LORA B.; O'BRYANT, HAROLD S.; Kilgore, J. Lon; HAFF, ERIN E.; PIERCE, KYLE; STONE, MICHAEL H.
Journal of Strength & Conditioning Research: February 2003
Original Article: PDF Only

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 A +/-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.

(C) 2003 National Strength and Conditioning Association