PMID- 31904716
OWN - NLM
STAT- MEDLINE
DCOM- 20200914
LR  - 20210210
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 34
IP  - 3
DP  - 2020 Mar
TI  - Effects of a 12-Week Training Program on Isometric and Dynamic Force-Time 
      Characteristics in Pre- and Post-Peak Height Velocity Male Athletes.
PG  - 653-662
LID - 10.1519/JSC.0000000000003467 [doi]
AB  - Dobbs, IJ, Oliver, JL, Wong, MA, Moore, IS, and Lloyd, RS. Effects of a 12-week 
      training program on isometric and dynamic force-time characteristics in pre- and 
      post-peak height velocity male athletes. J Strength Cond Res 34(3): 653-662, 
      2020-Literature shows that training children and adolescents can enhance strength 
      and power irrespective of their stage of development; however, the development of 
      the kinetic variables that underpin strength and power performance are typically 
      unreported in youth training studies. Twenty-four pre- and 14 post-peak height 
      velocity (PHV) male athletes were divided into maturity-specific experimental 
      (EXP) and control groups (CON), with the EXP groups completing a twice-weekly, 
      12-week training program. Force-time characteristics during the isometric 
      midthigh pull (IMTP), countermovement jump, and squat jump tests were quantified 
      at both baseline and after the completion of the 12-week program. Alpha level was 
      set at p < 0.05. No changes in total score for back-squat assessment were 
      observed in any group (p > 0.05). Analysis of IMTP data revealed that only the 
      post-PHV EXP group significantly increased absolute isometric peak force (PFabs) 
      and peak rate of force development within the IMTP after training. Both EXP 
      groups displayed significant increases in isometric PF at time epochs 0-90, 
      0-150, 0-200, and 0-250 ms. Data from the dynamic tests indicated that the 
      pre-PHV EXP cohort improved concentric qualities as reflected by increased squat 
      jump height and countermovement jump concentric power. There were no significant 
      changes for any variables across all tests within either CON group (p > 0.05). 
      Maturity-related differences in response to short-term training affects the 
      kinetic variables associated with strength and power performance, but not 
      movement competency in young male athletes.
FAU - Dobbs, Ian J
AU  - Dobbs IJ
AD  - Youth Physical Development Center, School of Sport and Health Sciences, Cardiff 
      Metropolitan University, Cardiff, United Kingdom.
FAU - Oliver, Jon L
AU  - Oliver JL
AD  - Youth Physical Development Center, School of Sport and Health Sciences, Cardiff 
      Metropolitan University, Cardiff, United Kingdom.
AD  - Sport Performance Research Institute, New Zealand (SPRINZ), AUT University, 
      Auckland, New Zealand; and.
FAU - Wong, Megan A
AU  - Wong MA
AD  - Youth Physical Development Center, School of Sport and Health Sciences, Cardiff 
      Metropolitan University, Cardiff, United Kingdom.
FAU - Moore, Isabel S
AU  - Moore IS
AD  - Youth Physical Development Center, School of Sport and Health Sciences, Cardiff 
      Metropolitan University, Cardiff, United Kingdom.
FAU - Lloyd, Rhodri S
AU  - Lloyd RS
AD  - Youth Physical Development Center, School of Sport and Health Sciences, Cardiff 
      Metropolitan University, Cardiff, United Kingdom.
AD  - Sport Performance Research Institute, New Zealand (SPRINZ), AUT University, 
      Auckland, New Zealand; and.
AD  - Center for Sport Science and Human Performance, Waikato Institute of Technology, 
      Hamilton, New Zealand.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
SB  - IM
MH  - Adolescent
MH  - Athletes
MH  - Athletic Performance/*physiology
MH  - Biomechanical Phenomena
MH  - Child
MH  - Cohort Studies
MH  - Exercise Test
MH  - Humans
MH  - Male
MH  - Movement
MH  - Muscle Strength/*physiology
MH  - Muscle, Skeletal/*physiology
MH  - Posture
MH  - Resistance Training/*methods
EDAT- 2020/01/07 06:00
MHDA- 2020/09/15 06:00
CRDT- 2020/01/07 06:00
PHST- 2020/01/07 06:00 [pubmed]
PHST- 2020/09/15 06:00 [medline]
PHST- 2020/01/07 06:00 [entrez]
AID - 00124278-202003000-00008 [pii]
AID - 10.1519/JSC.0000000000003467 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2020 Mar;34(3):653-662. doi: 10.1519/JSC.0000000000003467.