PMID- 22350356
OWN - NLM
STAT- MEDLINE
DCOM- 20130701
LR  - 20211021
IS  - 1439-6327 (Electronic)
IS  - 1439-6319 (Linking)
VI  - 112
IP  - 10
DP  - 2012 Oct
TI  - Divergent muscle functional and architectural responses to two successive high 
      intensity resistance exercise sessions in competitive weightlifters and 
      resistance trained adults.
PG  - 3629-39
LID - 10.1007/s00421-012-2346-4 [doi]
AB  - Peak force (PF), contractile rate of force development (RFD) and contractile 
      impulse (CI) are of great importance to competitive weightlifters (WL). These 
      athletes routinely perform successive bouts of high-intensity resistance exercise 
      (HIRE) within the same day (double-day training) with the aim of improving 
      muscular function and weightlifting performance. The purpose of this 
      investigation was to determine and compare the PF, contractile RFD and CI 
      responses to double-day training between WL and resistance trained (RT) adults (n 
      = 16 per group). Furthermore, we sought to establish whether acute changes in 
      muscle function were associated with acute changes in muscle architecture. 
      Isometric front squat PF, contractile RFD, CI and the pennation angle (theta(p)), 
      anatomical and physiological thickness of the m. vastus lateralis (VL) were 
      determined before and after two equivalent HIRE sessions separated by 4-6 h rest. 
      Each session consisted of ten single repetitions of the dynamic barbell front 
      squat interspersed with 2-min rest, using a load equivalent to 90% of the 
      pre-session PF. Weightlifters demonstrated greater PF at all time points when 
      compared to RT adults and exhibited no significant within or between session 
      changes in PF, contractile RFD or CI. Conversely, RT adults demonstrated within- 
      and between-session decreases in PF and between-session increases in contractile 
      RFD and CI. As no correlations were found between the relative within-session 
      changes in muscle function and the concomitant changes in muscle architecture, 
      other factors must contribute to the divergent responses in PF, contractile RFD 
      and CI between WL and RT adults.
FAU - Storey, Adam
AU  - Storey A
AD  - Department of Sport and Exercise Science, University of Auckland, Auckland, New 
      Zealand. adam.storey@auckland.ac.nz
FAU - Wong, Samantha
AU  - Wong S
FAU - Smith, Heather K
AU  - Smith HK
FAU - Marshall, Paul
AU  - Marshall P
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20120216
PL  - Germany
TA  - Eur J Appl Physiol
JT  - European journal of applied physiology
JID - 100954790
SB  - IM
MH  - Adult
MH  - Exercise/*physiology
MH  - Female
MH  - Humans
MH  - Isometric Contraction/*physiology
MH  - Male
MH  - Muscle Strength/physiology
MH  - Muscle, Skeletal/*physiology
MH  - *Resistance Training
MH  - Weight Lifting/*physiology
EDAT- 2012/02/22 06:00
MHDA- 2013/07/03 06:00
CRDT- 2012/02/22 06:00
PHST- 2011/05/20 00:00 [received]
PHST- 2012/01/31 00:00 [accepted]
PHST- 2012/02/22 06:00 [entrez]
PHST- 2012/02/22 06:00 [pubmed]
PHST- 2013/07/03 06:00 [medline]
AID - 10.1007/s00421-012-2346-4 [doi]
PST - ppublish
SO  - Eur J Appl Physiol. 2012 Oct;112(10):3629-39. doi: 10.1007/s00421-012-2346-4. 
      Epub 2012 Feb 16.