PMID- 33715988
OWN - NLM
STAT- MEDLINE
DCOM- 20210708
LR  - 20210708
IS  - 1878-1861 (Electronic)
IS  - 1878-1861 (Linking)
VI  - 24
IP  - 7
DP  - 2021 Jul
TI  - Considerations in interpreting neuromuscular state in elite level Australian 
      Rules football players.
PG  - 702-708
LID - S1440-2440(21)00030-X [pii]
LID - 10.1016/j.jsams.2021.02.007 [doi]
AB  - OBJECTIVES: Examine the influence of test modality, season stage, match load and 
      physical qualities on the interpretation of neuromuscular function (NF) post 
      Australian Rules Football (ARF) matches. DESIGN: Repeated measures design. 
      METHODS: Thirty-two elite ARF players' NF was assessed 72h following competitive 
      matches (7+/-2) via the counter movement jump (CMJ) and isometric mid-thigh pull 
      (IMTP). Influence of season stage, external load parameters (GPS; 10Hz) and 
      moderating influences of lower body strength (LBS), lower body power (LBP) and 
      intermittent exercise capacity upon NF recovery were assessed using linear mixed 
      effects models. RESULTS: Moderate negative seasonal trends were evident for both 
      rate of force development (RFD) 0-100ms (d=-0.86, 95%, CI: +/-0.57) and 0-200ms 
      (d=-0.76, CI: +/-0.64). Significant but trivial effects of match load were observed 
      between one standardised unit increase in high speed running (HSR) versus CMJ: 
      Force at zero velocity (d=0.12, CI: +/-0.12), and sum of high intensity 
      accelerations and CMJ: Eccentric deceleration RFD (d=-0.18, CI: +/-0.14). 
      Accounting for baseline LBS better explained (weight of evidence: W=87%) seasonal 
      trends observed in IMTP: peak force, with lower LBS showing greater capacity for 
      improvement. Positive moderating influences were observed with baseline LBS and 
      LBP (W=91 & 75%) on CMJ: eccentric mean power responses to HSR, and CMJ: jump 
      height responses to very-HSR, respectively. CONCLUSIONS: Interpretation of 
      athlete NF responses is complicated by the inconsistent and interacting influence 
      of contextual factors (assessment modality, stage of season, load), in-particular 
      higher baseline LBS and LBP may improve acute load related responses of NF.
CI  - Crown Copyright (c) 2021. Published by Elsevier Ltd. All rights reserved.
FAU - Norris, Dean
AU  - Norris D
AD  - Western Sydney University, School of Health Sciences, Australia; Greater Western 
      Sydney Giants (GWS), Australia. Electronic address: dean.norris@gwsgiants.com.au.
FAU - Joyce, David
AU  - Joyce D
AD  - Greater Western Sydney Giants (GWS), Australia.
FAU - Siegler, Jason
AU  - Siegler J
AD  - Western Sydney University, School of Health Sciences, Australia.
FAU - Cohen, Daniel
AU  - Cohen D
AD  - Masira Research Institute, University of Santander (UDES), Colombia; Mindeporte 
      (Colombian Ministry of Sport), High Performance Centre, Colombia.
FAU - Lovell, Ric
AU  - Lovell R
AD  - Western Sydney University, School of Health Sciences, Australia.
LA  - eng
PT  - Journal Article
DEP - 20210219
PL  - Australia
TA  - J Sci Med Sport
JT  - Journal of science and medicine in sport
JID - 9812598
SB  - IM
MH  - Athletic Performance/*physiology
MH  - Australia
MH  - Competitive Behavior/*physiology
MH  - Exercise Test
MH  - Humans
MH  - Isometric Contraction
MH  - Lower Extremity/physiology
MH  - *Muscle Strength
MH  - Muscle, Skeletal/*physiology
MH  - Running/physiology
MH  - Seasons
MH  - Soccer/*physiology
MH  - Task Performance and Analysis
OTO - NOTNLM
OT  - CMJ
OT  - IMTP
OT  - Neuromuscular function
OT  - Physical qualities
OT  - Team sports
EDAT- 2021/03/16 06:00
MHDA- 2021/07/09 06:00
CRDT- 2021/03/15 06:05
PHST- 2020/10/19 00:00 [received]
PHST- 2021/01/26 00:00 [revised]
PHST- 2021/02/10 00:00 [accepted]
PHST- 2021/03/16 06:00 [pubmed]
PHST- 2021/07/09 06:00 [medline]
PHST- 2021/03/15 06:05 [entrez]
AID - S1440-2440(21)00030-X [pii]
AID - 10.1016/j.jsams.2021.02.007 [doi]
PST - ppublish
SO  - J Sci Med Sport. 2021 Jul;24(7):702-708. doi: 10.1016/j.jsams.2021.02.007. Epub 
      2021 Feb 19.