PMID- 27548797
OWN - NLM
STAT- MEDLINE
DCOM- 20180702
LR  - 20181202
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 32
IP  - 2
DP  - 2018 Feb
TI  - Isometric Midthigh Pull Reliability and Relationship to Deadlift One Repetition 
      Maximum.
PG  - 528-533
LID - 10.1519/JSC.0000000000001605 [doi]
AB  - De Witt, JK, English, KL, Crowell, JB, Kalogera, KL, Guilliams, ME, Nieschwitz, 
      BE, Hanson, AM, and Ploutz-Snyder, LL. Isometric midthigh pull reliability and 
      relationship to deadlift one repetition maximum. J Strength Cond Res 32(2): 
      528-533, 2018-The purpose of this investigation was to examine the reliability of 
      the isometric midthigh pull (IMTP) and the relationship between IMTP peak force 
      and deadlift 1 repetition maximum (1RM). Nine subjects (5 men and 4 women; 40.6 +/- 
      8.0 years; 1.72 +/- 0.10 m; 75.6 +/- 13.4 kg) participated in this study. Isometric 
      midthigh pull and deadlift 1RM were both performed during 2 testing sessions. For 
      IMTP, peak force and peak rate of force development (RFD) were determined, in 
      addition to RFD at 30 ms, 50 ms, 90 ms, 150 ms, 200 ms, and 250 ms after 
      initiation of the pull. Intraclass correlation coefficients (ICCs) were 
      calculated to evaluate the reliability of IMTP measures. Pearson product-moment 
      correlations and linear regression were used to determine associations between 
      IMTP and deadlift 1RM. Isometric midthigh pull peak force was reproducible both 
      within (ICC = 0.98 and 0.97) and between sessions (ICC = 0.89) and significantly 
      correlated with deadlift 1RM (r = 0.88, p </= 0.05), but intermediate force outputs 
      and RFD were not. Lack of associations between RFD and deadlift 1RM indicate that 
      the ability to create explosive force may be independent of the ability to create 
      maximal force. The strong relationship between IMTP peak force and deadlift 1RM 
      was present regardless of which IMTP repetition across the 2 sessions was 
      examined. Peak force generated during IMTP is a reliable method to assess full 
      body maximal strength. A single IMTP repetition, provided adequate 
      familiarization and warm-up, correlates strongly with deadlift 1RM. Practitioners 
      can use the IMTP test as a method to estimate maximal deadlift strength in a 
      quick and potentially less provocative manner than traditional 1RM testing.
FAU - De Witt, John K
AU  - De Witt JK
AD  - kbrWyle Science, Technology and Engineering, Houston, Texas.
FAU - English, Kirk L
AU  - English KL
AD  - JES Tech, Houston, Texas.
FAU - Crowell, J Brent
AU  - Crowell JB
AD  - MEI Technologies, Houston, Texas.
FAU - Kalogera, Kent L
AU  - Kalogera KL
AD  - kbrWyle Science, Technology and Engineering, Houston, Texas.
FAU - Guilliams, Mark E
AU  - Guilliams ME
AD  - kbrWyle Science, Technology and Engineering, Houston, Texas.
FAU - Nieschwitz, Bruce E
AU  - Nieschwitz BE
AD  - kbrWyle Science, Technology and Engineering, Houston, Texas.
FAU - Hanson, Andrea M
AU  - Hanson AM
AD  - NASA Johnson Space Center, Houston, Texas.
FAU - Ploutz-Snyder, Lori L
AU  - Ploutz-Snyder LL
AD  - Universities Space Research Association, Houston, Texas.
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  - Adult
MH  - Exercise Test/*methods/standards
MH  - Female
MH  - Humans
MH  - Isometric Contraction/*physiology
MH  - Linear Models
MH  - Male
MH  - Middle Aged
MH  - Muscle Strength/physiology
MH  - Muscle, Skeletal/physiology
MH  - Reproducibility of Results
MH  - Thigh/*physiology
EDAT- 2016/08/23 06:00
MHDA- 2018/07/03 06:00
CRDT- 2016/08/23 06:00
PHST- 2016/08/23 06:00 [pubmed]
PHST- 2018/07/03 06:00 [medline]
PHST- 2016/08/23 06:00 [entrez]
AID - 10.1519/JSC.0000000000001605 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2018 Feb;32(2):528-533. doi: 10.1519/JSC.0000000000001605.