Influence of Different Relative Intensities on Power Output During the Hang Power Clean: Identification of the Optimal Load

Abstract

The influence of different relative intensities on power output was investigated in the present study in order to identify the optimal load that maximizes power output during the hang power clean. Fifteen men (age: 22.1 +/- 2.0 years, height: 180.1 +/- 6.3 cm, and body mass: 89.4 +/- 14.7 kg) performed the hang power cleans on a forceplate at 30-90% of one repetition maximum (1RM). Peak power was maximized at 70% 1RM, which was, however, not significantly different from peak power at 50, 60, 80, and 90% 1RM. Average power also was maximized at 70% 1RM, which was not significantly different from average power at 40, 50, 60, 80, and 90% 1RM. It was concluded that (a) the relative intensity had a significant influence on power output, and (b) power output can be maximized at a submaximal load during the hang power clean.

Lower body kinetics during the jump shrug: impact of load

“…This finding is in contrast to previous research that indicated that PF increases in parallel with an increasing load. 7,8 However, it is possible that the decrease in PF at higher loads during the JS can be attributed to the breakdown of technique. It is possible that if the subjects had more training experience with the JS that their technique would remain unaffected at higher loads.…”

“…Notes: PF, peak force; PV, peak velocity; PP, peak power; FPP, force at peak power; VPP, velocity at peak power; a , statistically different from value at 30% 1RM-HC (p < 0.05); b , statistically different from value at 30% 1RM-HC (p < 0.01); c , statistically different from value at 30% 1RM-HC (p < 0.001); d , statistically different from value at 45% 1RM-HC (p < 0.01); e , statistically different from value at 45% 1RM-HC (p < 0.001); f , statistically different from value at 65% 1RM-HC (p < 0.05) for PP production during PC and its variations. [4][5][6][7][8][9] However, this research has only examined either the PC from the floor [4][5][6]9 or the HC. 7,8 In line with previous research 1 , the current study demonstrated that the load that produced the greatest PP for the JS was 30% 1RM-HC.…”

“…11 Subjects were given two attempts at each increased load until their 1RM-HC was established. All repetitions were completed using the HC technique previously described by Kawamori et al 7 A 1RM-HC was completed because it may be impractical to perform at 1RM-JS test. Following the 1RM-HC test, subjects were familiarized with the technique of the JS by performing light exercise sets with 30% of their 1RM-HC.…”

Contemporary Training Practices in Elite British Powerlifters: Survey Results From an International Competition

“…Regardless of powerlifters' intention to lift heavy loads as fast as possible, the ensuing velocity is slow due to the load and lift biomechanics (23). On the contrary, the Olympic lifts are performed at high velocities across the load spectrum (19). Findings from research studies have demonstrated that velocity specific adaptations in force and power occur even when voluntary effort is maximal (18,22).…”

Effect of Load Positioning on the Kinematics and Kinetics of Weighted Vertical Jumps

“…Kinematic and kinetic data were calculated at the athletes' COM during unloaded trials and at the system COM (athlete + external load) during loaded trials. The kinematic and kinetic variables were calculated using the VGRF-time data and a forward dynamics approach reported previously in the literature (20,22,24). Briefly, trials were initiated with subjects standing erect and motionless.…”