PMID- 33396304
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210218
IS  - 2075-4663 (Electronic)
IS  - 2075-4663 (Linking)
VI  - 9
IP  - 1
DP  - 2020 Dec 31
TI  - Identifying Reliable and Relatable Force-Time Metrics in Athletes-Considerations 
      for the Isometric Mid-Thigh Pull and Countermovement Jump.
LID - 10.3390/sports9010004 [doi]
LID - 4
AB  - The purpose of this study was to evaluate intrasession reliability of 
      countermovement jump (CMJ) and isometric mid-thigh pull (IMTP) force-time 
      characteristics, as well as relationships between CMJ and IMTP metrics. Division 
      I sport and club athletes (n = 112) completed two maximal effort CMJ and IMTP 
      trials, in that order, on force plates. Relative and absolute reliability were 
      assessed using intraclass correlation coefficients (ICCs) > 0.80 and coefficients 
      of variation (CVs) < 10%. Intrasession reliability was acceptable for the 
      majority of the CMJ force-time metrics except for concentric rate of force 
      development (RFD), eccentric impulse and RFD, and lower limb stiffness. The 
      IMTP's time to peak force, instantaneous force at 150 ms, instantaneous net 
      force, and RFD measures were not reliable. Statistically significant weak to 
      moderate relationships (r = 0.20-0.46) existed between allometrically scaled CMJ 
      and IMTP metrics, with the exception of CMJ eccentric mean power not being 
      related with IMTP performances. A majority of CMJ and IMTP metrics met acceptable 
      reliability standards, except RFD measures which should be used with caution. 
      Provided CMJs and IMTPs are indicative of distinct physical fitness capabilities, 
      it is suggested to monitor athlete performance in both tests via changes in those 
      variables that demonstrate the greatest degree of reliability.
FAU - Merrigan, Justin J
AU  - Merrigan JJ
AUID- ORCID: 0000-0001-5117-2388
AD  - Human Performance Innovation Center, Rockefeller Neuroscience Institute, West 
      Virginia University, Morgantown, WV 26505, USA.
FAU - Stone, Jason D
AU  - Stone JD
AD  - Human Performance Innovation Center, Rockefeller Neuroscience Institute, West 
      Virginia University, Morgantown, WV 26505, USA.
FAU - Hornsby, W Guy
AU  - Hornsby WG
AUID- ORCID: 0000-0001-6803-6200
AD  - Human Performance Innovation Center, Rockefeller Neuroscience Institute, West 
      Virginia University, Morgantown, WV 26505, USA.
AD  - College of Physical Activity and Sport Sciences, West Virginia University, 
      Morgantown, WV 26505, USA.
FAU - Hagen, Joshua A
AU  - Hagen JA
AUID- ORCID: 0000-0002-2829-1191
AD  - Human Performance Innovation Center, Rockefeller Neuroscience Institute, West 
      Virginia University, Morgantown, WV 26505, USA.
LA  - eng
PT  - Journal Article
DEP - 20201231
PL  - Switzerland
TA  - Sports (Basel)
JT  - Sports (Basel, Switzerland)
JID - 101722684
PMC - PMC7824153
OTO - NOTNLM
OT  - coefficient of variation
OT  - collegiate athletes
OT  - force plate
OT  - neuromuscular performance
OT  - power
OT  - strength
COIS- The authors declare no conflict of interest.
EDAT- 2021/01/06 06:00
MHDA- 2021/01/06 06:01
PMCR- 2020/12/31
CRDT- 2021/01/05 01:11
PHST- 2020/12/02 00:00 [received]
PHST- 2020/12/20 00:00 [revised]
PHST- 2020/12/22 00:00 [accepted]
PHST- 2021/01/05 01:11 [entrez]
PHST- 2021/01/06 06:00 [pubmed]
PHST- 2021/01/06 06:01 [medline]
PHST- 2020/12/31 00:00 [pmc-release]
AID - sports9010004 [pii]
AID - sports-09-00004 [pii]
AID - 10.3390/sports9010004 [doi]
PST - epublish
SO  - Sports (Basel). 2020 Dec 31;9(1):4. doi: 10.3390/sports9010004.