PMID- 29985220
OWN - NLM
STAT- MEDLINE
DCOM- 20210126
LR  - 20210210
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 34
IP  - 10
DP  - 2020 Oct
TI  - Isometric Midthigh Pull Characteristics in Elite Youth Male Soccer Players: 
      Comparisons by Age and Maturity Offset.
PG  - 2947-2955
LID - 10.1519/JSC.0000000000002673 [doi]
AB  - Morris, RO, Jones, B, Myers, T, Lake, J, Emmonds, S, Clarke, ND, Singleton, D, 
      Ellis, M, and Till, K. Isometric midthigh pull characteristics in elite youth 
      male soccer players: Comparisons by age and maturity offset. J Strength Cond Res 
      34(10): 2947-2955, 2020-The purpose of this study was to (a) provide comparative 
      isometric midthigh pull (IMTP) force-time characteristics for elite youth soccer 
      players and (b) determine the effect of age and maturation on IMTP force-time 
      characteristics. Elite male youth soccer players (U12 n = 51; U13 n = 54; U14 n = 
      56; U15 n = 45; U16 n = 39; and U18 n = 48) across 3 maturity offset groups (Pre 
      n = 117; circa n = 84; and Post-peak height velocity n = 92) performed 2 maximal 
      IMTP trials on a portable force platform (1,000 Hz). Absolute and relative values 
      for peak force (PF) and impulse over 100 and 300 ms were analyzed. A full 
      Bayesian regression model was used to provide probable differences similar to 
      that of a frequentist p value. Advanced age and maturation resulted in superior 
      IMTP force-time characteristics. Peak force demonstrated high probabilities of a 
      difference between all consecutive age groups (p > 0.95). For absolute and 
      relative impulse (100 and 300 ms), only 2 consecutive age groups (U14-15's and 
      U16-18's) demonstrated high probabilities of a difference (p > 0.95) with large 
      effects (d = 0.59-0.93). There were high probable differences between all 
      maturity offset groups for PF and impulse with medium to large effects (d = 
      0.56-3.80). These were also reduced when expressed relative to body mass 
      (relative PF and relative impulse). This study provides comparative IMTP 
      force-time characteristics of elite male youth soccer players. Practitioners 
      should consider individual maturation status when comparing players given the 
      impact this has on force expression.
FAU - Morris, Rhys O
AU  - Morris RO
AD  - Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, 
      Leeds, United Kingdom.
FAU - Jones, Ben
AU  - Jones B
AD  - Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, 
      Leeds, United Kingdom.
FAU - Myers, Tony
AU  - Myers T
AD  - Sport, Exercise and Health Research Center, Newman University Birmingham, 
      Birmingham, United Kingdom.
FAU - Lake, Jason
AU  - Lake J
AD  - Chichester Institute of Sport, University of Chichester, Chichester, United 
      Kingdom.
FAU - Emmonds, Stacey
AU  - Emmonds S
AD  - Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, 
      Leeds, United Kingdom.
FAU - Clarke, Neil D
AU  - Clarke ND
AD  - School of Life Sciences, Coventry University, Coventry, United Kingdom.
FAU - Singleton, Dave
AU  - Singleton D
AD  - Birmingham City Football Club, Birmingham, United Kingdom; and.
FAU - Ellis, Matthew
AU  - Ellis M
AD  - Coventry City Football Club, Coventry, United Kingdom.
FAU - Till, Kevin
AU  - Till K
AD  - Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, 
      Leeds, United Kingdom.
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  - Age Factors
MH  - Athletic Performance
MH  - Bayes Theorem
MH  - Body Mass Index
MH  - Body Weights and Measures
MH  - Child
MH  - Cross-Sectional Studies
MH  - Humans
MH  - Leg
MH  - Male
MH  - Muscle Strength/*physiology
MH  - Muscle, Skeletal/*physiology
MH  - Sexual Maturation/*physiology
MH  - Soccer/*physiology
EDAT- 2018/07/10 06:00
MHDA- 2021/01/27 06:00
CRDT- 2018/07/10 06:00
PHST- 2018/07/10 06:00 [pubmed]
PHST- 2021/01/27 06:00 [medline]
PHST- 2018/07/10 06:00 [entrez]
AID - 00124278-202010000-00029 [pii]
AID - 10.1519/JSC.0000000000002673 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2020 Oct;34(10):2947-2955. doi: 
      10.1519/JSC.0000000000002673.