PMID- 38359039
OWN - NLM
STAT- MEDLINE
DCOM- 20240219
LR  - 20240219
IS  - 1932-6203 (Electronic)
IS  - 1932-6203 (Linking)
VI  - 19
IP  - 2
DP  - 2024
TI  - Relative strength explains the differences in multi-joint rapid force production 
      between sexes.
PG  - e0296877
LID - 10.1371/journal.pone.0296877 [doi]
LID - e0296877
AB  - The primary aim of this study was to determine whether relative strength explains 
      the differences in the rapid force production (force developed during first 150-, 
      200-, and 250 ms) of females and males, and to evaluate the relationships between 
      peak force and rapid force production. Sixty-three team sport athletes (females: 
      n = 25, age = 21.5 +/- 1.3 years, stature = 166 +/- 5 cm, body mass = 60.65 +/- 10.04 
      kg; males: n = 38, age = 21.9 +/- 1.1 years, stature = 178 +/- 7 cm, body mass = 
      76.55 +/- 12.88 kg) performed a series of isometric mid-thigh pull (IMTP) trials, 
      with all participants' data used for correlational analysis. After testing, 
      females and males were divided into 20 strength-matched pairs, based on their 
      relative peak force (peak force ∙ body mass). There were no meaningful 
      differences between sexes for relative force at 150 ms (g = 0.007 [95% CI -0.627, 
      0.648]), 200 ms (g = -0.059 [95% CI -0.695, 0.588]) and 250 ms (g = -0.156 [95% 
      CI -0.778, 0.473]). Similarly, when expressed as a percentage of peak force there 
      were no meaningful differences in force at 150 ms (g = -0.015 [95.0%CI -0.650, 
      0.680]), 200 ms (g = -0.099 [95.0%CI -0.714, 0.559]) or 250 ms (g = -0.272 
      [95.0%CI -0.856, 0.328]) between strength-matched females and males. Based on the 
      correlations, there were very large to nearly perfect relationships (r = 
      0.77-0.94, p <0.001) between peak force and rapid force production, with peak 
      force explaining 59%, 77% and 89% of the variance in force at 150-, 200- and 250 
      ms, respectively. When comparing females and males, relative strength (based on 
      body weight or a percentage of peak force) should be considered, and 
      practitioners should be aware of the role of peak force in rapid force 
      production.
CI  - Copyright: (c) 2024 Comfort et al. This is an open access article distributed under 
      the terms of the Creative Commons Attribution License, which permits unrestricted 
      use, distribution, and reproduction in any medium, provided the original author 
      and source are credited.
FAU - Comfort, Paul
AU  - Comfort P
AUID- ORCID: 0000-0002-1131-8626
AD  - Directorate of Psychology and Sport, University of Salford, Salford, Greater 
      Manchester, United Kingdom.
AD  - Strength and Power Research Group, School of Medical and Health Sciences, Edith 
      Cowan University, Joondalup, Australia.
FAU - McMahon, John J
AU  - McMahon JJ
AD  - Directorate of Psychology and Sport, University of Salford, Salford, Greater 
      Manchester, United Kingdom.
FAU - Lake, Jason P
AU  - Lake JP
AD  - Strength and Power Research Group, School of Medical and Health Sciences, Edith 
      Cowan University, Joondalup, Australia.
AD  - Chichester Institute of Sport, Nursing, and Allied Health, University of 
      Chichester, Chichester, West Sussex, United Kingdom.
FAU - Ripley, Nicholas J
AU  - Ripley NJ
AD  - Directorate of Psychology and Sport, University of Salford, Salford, Greater 
      Manchester, United Kingdom.
FAU - Triplett, N Travis
AU  - Triplett NT
AD  - Department of Public Health and Exercise Science, Appalachian State University, 
      Boone, North Carolina, United States of America.
FAU - Haff, G Gregory
AU  - Haff GG
AUID- ORCID: 0000-0002-0676-7750
AD  - Directorate of Psychology and Sport, University of Salford, Salford, Greater 
      Manchester, United Kingdom.
AD  - Strength and Power Research Group, School of Medical and Health Sciences, Edith 
      Cowan University, Joondalup, Australia.
LA  - eng
PT  - Journal Article
DEP - 20240215
PL  - United States
TA  - PLoS One
JT  - PloS one
JID - 101285081
SB  - IM
MH  - Male
MH  - Female
MH  - Humans
MH  - Young Adult
MH  - Adult
MH  - *Muscle Strength
MH  - *Isometric Contraction
MH  - Exercise Test
MH  - Reproducibility of Results
MH  - Thigh
PMC - PMC10868802
COIS- The authors have declared that no competing interests exist.
EDAT- 2024/02/15 18:42
MHDA- 2024/02/19 06:44
PMCR- 2024/02/15
CRDT- 2024/02/15 13:44
PHST- 2023/04/18 00:00 [received]
PHST- 2023/12/21 00:00 [accepted]
PHST- 2024/02/19 06:44 [medline]
PHST- 2024/02/15 18:42 [pubmed]
PHST- 2024/02/15 13:44 [entrez]
PHST- 2024/02/15 00:00 [pmc-release]
AID - PONE-D-23-10809 [pii]
AID - 10.1371/journal.pone.0296877 [doi]
PST - epublish
SO  - PLoS One. 2024 Feb 15;19(2):e0296877. doi: 10.1371/journal.pone.0296877. 
      eCollection 2024.