PMID- 36515586
OWN - NLM
STAT- MEDLINE
DCOM- 20221216
LR  - 20221222
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 37
IP  - 1
DP  - 2023 Jan 1
TI  - Intrasession and Intersession Reliability of Isometric Squat, Midthigh Pull, and 
      Squat Jump in Resistance-Trained Individuals.
PG  - 18-26
LID - 10.1519/JSC.0000000000004168 [doi]
AB  - Ishida, A, Suarez, DG, Travis, SK, Slaton, JA, White, JB, Bazyler, CD, and Stone, 
      MH. Intrasession and intersession reliability of isometric squat, midthigh pull, 
      and squat jump in resistance-trained individuals. J Strength Cond Res 37(1): 
      18-26, 2023-The purposes of this study were to investigate intrasession and 
      intersession reliability of variables obtained from squat jump (SJ), shortened 
      isometric midthigh pull (IMTP), and isometric squat (ISQ) protocols and to 
      evaluate relationships between isometric and dynamic performance and 1 repetition 
      maximum (1RM) back squat (BSQ). Eleven moderately resistance-trained men 
      participated (27.8 +/- 3.9 years; 175.0 +/- 7.2 cm; 87.2 +/- 11.4 kg). Subjects 
      completed familiarization in the IMTP and ISQ, followed by 1RM BSQ at least 48 
      hours before the first performance test. Two performance tests occurred at 7-day 
      intervals including SJ, IMTP, and ISQ. SJ variables included jump height (SJH), 
      body mass (BM), peak force (PF), and peak power (PP). Isometric midthigh pull and 
      ISQ variables included isometric peak force (IPF); relative IPF; rate of force 
      development at 90, 200, and 250 milliseconds; and impulse at 90, 200, and 250 
      milliseconds. SJ, IMTP, and ISQ kinetic variables were considered reliable if 
      intraclass correlations (ICCs) and coefficients of variations (CVs) were >0.80 
      and <10%. Intrasession and intersession reliability criteria were met for SJH, 
      BM, PF, and PP (ICC = 0.91-1.00, CV = 0.5-9.1%). Isometric peak force and impulse 
      at 200 and 250 milliseconds met intrasession and intersession reliability 
      criteria for IMTP and ISQ (ICC = 0.90-0.99, CV = 2.1-8.1%). Significant large 
      correlation was observed between 1RM BSQ and ISQ peak force (p = 0.038, r = 
      0.63), but not between 1RM BSQ and shortened IMTP peak force (p = 0.11, r = 
      0.50). Shortened IMTP and ISQ peak force and impulse are reliable kinetic 
      variables, and ISQ peak force is indicative of 1RM BSQ in moderately 
      resistance-trained men.
CI  - Copyright (c) 2021 National Strength and Conditioning Association.
FAU - Ishida, Ai
AU  - Ishida A
AUID- ORCID: 0000-0002-6010-1837
AD  - School of Applied Health Sciences and Wellness, Ohio University, Grove Center, 
      Athens, Ohio.
AD  - Exercise and Sport Sciences Laboratory, East Tennessee State University, Johnson 
      City, Tennessee.
FAU - Suarez, Dylan G
AU  - Suarez DG
AD  - Exercise and Sport Sciences Laboratory, East Tennessee State University, Johnson 
      City, Tennessee.
FAU - Travis, S Kyle
AU  - Travis SK
AD  - College of Public Health and Health Professions, University of Florida, 
      Gainesville, Florida; and.
FAU - Slaton, Jake A
AU  - Slaton JA
AD  - Exercise and Sport Sciences Laboratory, East Tennessee State University, Johnson 
      City, Tennessee.
FAU - White, Jason B
AU  - White JB
AD  - School of Applied Health Sciences and Wellness, Ohio University, Grove Center, 
      Athens, Ohio.
FAU - Bazyler, Caleb D
AU  - Bazyler CD
AD  - Exercise and Sport Sciences Laboratory, East Tennessee State University, Johnson 
      City, Tennessee.
FAU - Stone, Michael H
AU  - Stone MH
AD  - Exercise and Sport Sciences Laboratory, East Tennessee State University, Johnson 
      City, Tennessee.
AD  - Center of Excellence for Sport Science and Coach Education, East Tennessee State 
      University, Johnson City, Tennessee.
LA  - eng
PT  - Journal Article
DEP - 20211223
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
SB  - IM
MH  - Male
MH  - Humans
MH  - *Isometric Contraction
MH  - *Muscle Strength
MH  - Exercise Test/methods
MH  - Reproducibility of Results
MH  - Posture
EDAT- 2022/12/15 06:00
MHDA- 2022/12/17 06:00
CRDT- 2022/12/14 09:53
PHST- 2022/12/14 09:53 [entrez]
PHST- 2022/12/15 06:00 [pubmed]
PHST- 2022/12/17 06:00 [medline]
AID - 00124278-202301000-00003 [pii]
AID - 10.1519/JSC.0000000000004168 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2023 Jan 1;37(1):18-26. doi: 10.1519/JSC.0000000000004168. 
      Epub 2021 Dec 23.