PMID- 35482542
OWN - NLM
STAT- MEDLINE
DCOM- 20220502
LR  - 20230819
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 36
IP  - 5
DP  - 2022 May 1
TI  - The Reliability and Magnitude of Time-Dependent Force-Time Characteristics During 
      the Isometric Midthigh Pull Are Affected by Both Testing Protocol and Analysis 
      Choices.
PG  - 1191-1199
LID - 10.1519/JSC.0000000000004229 [doi]
AB  - Guppy, SN, Kotani, Y, Brady, CJ, Connolly, S, Comfort, P, and Haff, GG. Title: 
      The reliability and magnitude of time-dependent force-time characteristics during 
      the isometric mid-thigh pull are impacted by both testing protocol and analysis 
      choices. J Strength Cond Res 36(5): 1191-1199, 2022-This study aimed to 
      investigate whether the use of short-duration (SHORT) isometric midthigh pull 
      (IMTP) trials resulted in greater reliability and magnitude of time-dependent 
      force-time characteristics than traditionally performed IMTP trials (TRAD). 
      Fourteen subjects with >6 months' training experience with the power clean 
      volunteered to take part in the study. Subjects performed five  approximately 1-second IMTP 
      trials (SHORT) and five 5-second IMTP trials (TRAD). SHORT resulted in 
      substantially more reliable rate of force development (RFD) measures (intraclass 
      correlation coefficient [ICC] = 0.97-0.99; coefficient of variation [CV] = 
      2.6-7.0%), particularly during time bands from force-onset to 150 ms, compared 
      with TRAD when trials were selected for analysis based on peak force (ICC = 
      0.66-0.83; CV = 14.1-38.5%). Selecting TRAD trials based on RFD0-200 resulted in 
      similar reliability compared with SHORT of those same epochs (ICC = 0.97-0.99; CV 
      = 2.5-7.8%). Furthermore, SHORT resulted in significantly greater force at 
      specific time points, RFD, and impulse compared with TRAD trials (p = 
      0.001-0.033; g = -0.16 to -0.66). Based on these results, strength and 
      conditioning professionals should use specific testing protocols (i.e., TRAD and 
      SHORT) depending on the component of an athlete's force-generating capacity that 
      they wish to assess and remain aware of the effect analysis choices they have on 
      the reliability of IMTP force-time characteristics.
CI  - Copyright (c) 2022 National Strength and Conditioning Association.
FAU - Guppy, Stuart N
AU  - Guppy SN
AD  - School of Medical and Health Sciences, Edith Cowan University, Joondalup, 
      Australia.
FAU - Kotani, Yosuke
AU  - Kotani Y
AD  - School of Medical and Health Sciences, Edith Cowan University, Joondalup, 
      Australia.
FAU - Brady, Claire J
AU  - Brady CJ
AD  - Sport Ireland Institute, Abbotstown, Dublin, Ireland.
FAU - Connolly, Shannon
AU  - Connolly S
AD  - School of Medical and Health Sciences, Edith Cowan University, Joondalup, 
      Australia.
AD  - Western Australian Institute of Sport, Mt Claremont, Australia.
FAU - Comfort, Paul
AU  - Comfort P
AD  - School of Medical and Health Sciences, Edith Cowan University, Joondalup, 
      Australia.
AD  - Directorate of Psychology and Sport, University of Salford, Salford, Greater 
      Manchester, United Kingdom.
AD  - Institute for Sport, Physical Activity and Leisure, Carnegie School of Sport, 
      Leeds Beckett University, Leeds, United Kingdom ; and.
FAU - Haff, G Gregory
AU  - Haff GG
AD  - School of Medical and Health Sciences, Edith Cowan University, Joondalup, 
      Australia.
AD  - Directorate of Psychology and Sport, University of Salford, Salford, Greater 
      Manchester, United Kingdom.
AD  - Australian Weightlifting Federation, Brisbane, Australia.
LA  - eng
PT  - Journal Article
DEP - 20220215
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
SB  - IM
MH  - Exercise Test/methods
MH  - Humans
MH  - *Isometric Contraction
MH  - *Muscle Strength
MH  - Reproducibility of Results
MH  - Thigh
EDAT- 2022/04/29 06:00
MHDA- 2022/05/03 06:00
CRDT- 2022/04/28 13:03
PHST- 2022/04/28 13:03 [entrez]
PHST- 2022/04/29 06:00 [pubmed]
PHST- 2022/05/03 06:00 [medline]
AID - 00124278-202205000-00004 [pii]
AID - 10.1519/JSC.0000000000004229 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2022 May 1;36(5):1191-1199. doi: 
      10.1519/JSC.0000000000004229. Epub 2022 Feb 15.