PMID- 19168926
OWN - NLM
STAT- MEDLINE
DCOM- 20090403
LR  - 20191111
IS  - 1555-0265 (Print)
IS  - 1555-0265 (Linking)
VI  - 2
IP  - 3
DP  - 2007 Sep
TI  - Optimal loading for peak power output during the hang power clean in professional 
      rugby players.
PG  - 260-9
AB  - PURPOSE: The ability to develop high levels of muscle power is considered an 
      essential component of success in many sporting activities; however, the optimal 
      load for the development of peak power during training remains controversial. The 
      aim of the present study was to determine the optimal load required to observe 
      peak power output (PPO) during the hang power clean in professional rugby 
      players. METHODS: Twelve professional rugby players performed hang power cleans 
      on a portable force platform at loads of 30%, 40%, 50%, 60%, 70%, 80%, and 90% of 
      their predetermined 1-repetition maximum (1-RM) in a randomized and balanced 
      order. RESULTS: Relative load had a significant effect on power output, with peak 
      values being obtained at 80% of the subjects' 1-RM (4466 +/- 477 W; P < .001). 
      There was no significant difference, however, between the power outputs at 50%, 
      60%, 70%, or 90% 1-RM compared with 80% 1-RM. Peak force was produced at 90% 1-RM 
      with relative load having a significant effect on this variable; however, 
      relative load had no effect on peak rate of force development or velocity during 
      the hang power clean. CONCLUSIONS: The authors conclude that relative load has a 
      significant effect on PPO during the hang power clean: Although PPO was obtained 
      at 80% 1-RM, there was no significant difference between the loads ranging from 
      40% to 90% 1-RM. Individual determination of the optimal load for PPO is 
      necessary in order to enhance individual training effects.
FAU - Kilduff, Liam P
AU  - Kilduff LP
AD  - Dept of Sports Science, University of Wales, Swansea, Singleton Park, Wales.
FAU - Bevan, Huw
AU  - Bevan H
FAU - Owen, Nick
AU  - Owen N
FAU - Kingsley, Mike I C
AU  - Kingsley MI
FAU - Bunce, Paul
AU  - Bunce P
FAU - Bennett, Mark
AU  - Bennett M
FAU - Cunningham, Dan
AU  - Cunningham D
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Int J Sports Physiol Perform
JT  - International journal of sports physiology and performance
JID - 101276430
SB  - IM
MH  - Adult
MH  - Analysis of Variance
MH  - Football/*physiology
MH  - Humans
MH  - Male
MH  - Muscle Strength/*physiology
MH  - Weight Lifting/*physiology
EDAT- 2007/09/01 00:00
MHDA- 2009/04/04 09:00
CRDT- 2009/01/27 09:00
PHST- 2009/01/27 09:00 [entrez]
PHST- 2007/09/01 00:00 [pubmed]
PHST- 2009/04/04 09:00 [medline]
AID - 10.1123/ijspp.2.3.260 [doi]
PST - ppublish
SO  - Int J Sports Physiol Perform. 2007 Sep;2(3):260-9. doi: 10.1123/ijspp.2.3.260.