PMID- 32835635
OWN - NLM
STAT- MEDLINE
DCOM- 20231003
LR  - 20231003
IS  - 1752-6116 (Electronic)
IS  - 1476-3141 (Linking)
VI  - 22
IP  - 11
DP  - 2023 Nov
TI  - Evaluation of force-time curve analysis methods in the isometric mid-thigh pull 
      test.
PG  - 1381-1397
LID - 10.1080/14763141.2020.1800810 [doi]
AB  - The purpose of this study was to evaluate the manual and automatic analysis 
      methods for force-time curve analysis of the isometric mid-thigh pull (IMTP) 
      test. The visual analysis, first derivative analysis and threshold analysis 
      methods were used to analyse onset time and time-specific forces at 50 ms, 90 ms, 
      200 ms and 250 ms on the force-time curve. Ninety-three collegiate sports 
      athletes' trials were selected and analysed by each method. The visual analysis 
      method was set as the reference method for paired comparisons with the first 
      derivative analysis method and threshold analysis method. Onset time comparisons 
      revealed that the first derivative analysis method was comparable with the visual 
      analysis method with average difference at about 30 ms. Results from the weighted 
      least products regression analysis and the Bland-Altman analysis showed that 
      large fixed bias confounded by proportional bias existed in the threshold 
      analysis method, and time-specific force variables obtained from the first 
      derivative analysis method were closer to those from the visual analysis method 
      when compared with the threshold analysis method. These findings suggest that the 
      first derivative analysis method could be an effective tool for force-time curve 
      analysis of the IMTP test.
FAU - Liu, Junshi
AU  - Liu J
AD  - Institute of Human Factors and Ergonomics, Shenzhen University, Shenzhen, China.
AD  - Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and 
      Guangdong Province, Shenzhen University, Shenzhen, China.
FAU - Qu, Xingda
AU  - Qu X
AD  - Institute of Human Factors and Ergonomics, Shenzhen University, Shenzhen, China.
FAU - Stone, Michael H
AU  - Stone MH
AD  - Department of Sport, Exercise, Recreation, and Kinesiology, East Tennessee State 
      University, Johnson City, TN, USA.
LA  - eng
PT  - Journal Article
DEP - 20200823
PL  - England
TA  - Sports Biomech
JT  - Sports biomechanics
JID - 101151352
SB  - IM
MH  - Humans
MH  - *Thigh
MH  - Biomechanical Phenomena
MH  - *Isometric Contraction
MH  - Muscle Strength
MH  - Exercise Test/methods
MH  - Reproducibility of Results
OTO - NOTNLM
OT  - Kinetic analysis method
OT  - isometric performance test
OT  - pull onset
OT  - time-specific force
EDAT- 2020/08/25 06:00
MHDA- 2023/10/03 06:47
CRDT- 2020/08/25 06:00
PHST- 2023/10/03 06:47 [medline]
PHST- 2020/08/25 06:00 [pubmed]
PHST- 2020/08/25 06:00 [entrez]
AID - 10.1080/14763141.2020.1800810 [doi]
PST - ppublish
SO  - Sports Biomech. 2023 Nov;22(11):1381-1397. doi: 10.1080/14763141.2020.1800810. 
      Epub 2020 Aug 23.