The Effects of Regional Quadriceps Architecture on Angle-Specific Rapid Force Expression

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aut.relation.endpage840
aut.relation.issue11
aut.relation.journalApplied Physiology, Nutrition and Metabolism
aut.relation.startpage829
aut.relation.volume48
dc.contributor.authorOranchuk, Dustin J
dc.contributor.authorHopkins, William G
dc.contributor.authorCronin, John B
dc.contributor.authorStorey, Adam G
dc.contributor.authorNelson, André R
dc.date.accessioned2023-11-15T22:03:11Z
dc.date.available2023-11-15T22:03:11Z
dc.date.issued2023-06-30
dc.description.abstractEvaluating anatomical contributions to performance can increase understanding of muscle mechanics and guide physical preparation. While the impact of anatomy on muscular performance is well studied, the effects of regional quadriceps architecture on rapid torque or force expression are less clear. Regional (proximal, middle, distal) quadriceps (vastus lateralis, rectus femoris, and vastus intermedius) thickness (MT), pennation angle (PA), and fascicle length (FL) of 24 males (48 limbs) were assessed via ultrasonography. Participants performed maximal isometric knee extensions at 40º, 70º, and 100º of knee flexion to evaluate rate of force development from 0-200 ms (RFD0-200). Measurements were repeated on three occasions with the greatest RFD0-200 and mean muscle architecture measures used for analysis. Linear regression models predicting angle-specific RFD0-200 from regional anatomy provided adjusted correlations (√adjR2) with bootstrapped compatibility limits. Mid-rectus femoris MT (√adjR2=0.41-0.51) and proximal-vastus lateralis FL (√adjR2=0.42-0.48) were the best single predictors of RFD0-200, and the only measures to reach precision with 99% compatibility limits. Small simple correlations were found across all regions and joint angles between RFD0-200 and vastus lateralis MT (√adjR2=0.28±0.13; mean±SD), vastus lateralis FL (√adjR2=0.33±0.10), rectus femoris MT (√adjR2=0.38±0.10), and lateral vastus intermedius MT (√adjR2=0.24±0.10). Between-correlation comparisons are reported within the article. Researchers should measure mid-region rectus femoris MT and vastus lateralis FL to efficiently and robustly evaluate potential anatomical contributions to rapid knee extension force changes, with distal and proximal measurements providing little additional value. However, correlations were generally small to moderate, suggesting that neurological factors may be critical in rapid force expression.
dc.identifier.citationApplied Physiology, Nutrition and Metabolism, ISSN: 1066-7814 (Print); 1715-5320 (Online), Canadian Science Publishing, 48(11), 829-840. doi: 10.1139/apnm-2023-0074
dc.identifier.doi10.1139/apnm-2023-0074
dc.identifier.issn1066-7814
dc.identifier.issn1715-5320
dc.identifier.urihttp://hdl.handle.net/10292/16940
dc.languageeng
dc.publisherCanadian Science Publishing
dc.relation.urihttps://cdnsciencepub.com/doi/10.1139/apnm-2023-0074
dc.rights© 2023 The Author(s). Permission for reuse (free in most cases) can be obtained from copyright.com
dc.rights.accessrightsOpenAccess
dc.subjectlength–tension
dc.subjectmuscle architecture
dc.subjectrectus femoris
dc.subjecttorque
dc.subjectvastus intermedius
dc.subjectvastus lateralis
dc.subject42 Health Sciences
dc.subject4207 Sports Science and Exercise
dc.subjectNeurosciences
dc.subject06 Biological Sciences
dc.subject11 Medical and Health Sciences
dc.subjectSport Sciences
dc.subject3210 Nutrition and dietetics
dc.subject4207 Sports science and exercise
dc.subject.meshMale
dc.subject.meshHumans
dc.subject.meshQuadriceps Muscle
dc.subject.meshKnee Joint
dc.subject.meshUltrasonography
dc.subject.meshTorque
dc.subject.meshKnee Joint
dc.subject.meshHumans
dc.subject.meshUltrasonography
dc.subject.meshTorque
dc.subject.meshMale
dc.subject.meshQuadriceps Muscle
dc.subject.meshMale
dc.subject.meshHumans
dc.subject.meshQuadriceps Muscle
dc.subject.meshKnee Joint
dc.subject.meshUltrasonography
dc.subject.meshTorque
dc.titleThe Effects of Regional Quadriceps Architecture on Angle-Specific Rapid Force Expression
dc.typeJournal Article
pubs.elements-id512728
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