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dc.contributor.authorBenitez, Brian
dc.contributor.authorKwak, Minyoung
dc.contributor.authorSucci, Pasquale J.
dc.contributor.authorWeir, Joseph P.
dc.contributor.authorBergstrom, Haley C.
dc.date.accessioned2023-07-10T16:58:49Z
dc.date.available2023-07-10T16:58:49Z
dc.date.issued2023-06-19
dc.identifier.citationBenitez, B.; Kwak, M.; Succi, P.J.; Weir, J.P.; Bergstrom, H.C. Unilaterally Induced Quadriceps Fatigue during Sustained Submaximal Isometric Exercise Does Not Alter Contralateral Leg Extensor Performance. J. Funct. Morphol. Kinesiol. 2023, 8, 85. https://doi.org/10.3390/jfmk8020085en_US
dc.identifier.urihttps://hdl.handle.net/1808/34568
dc.description.abstractThis study investigated the effects of fatiguing unilateral exercise on the ipsilateral, exercised, and contralateral, non-exercised limb’s post-exercise performance in males and females. Ten males and ten females performed a fatiguing, unilateral isometric leg extension at 50% maximal voluntary isometric contraction (MVIC) force. Prior to and immediately after the fatiguing tasks, MVICs were performed for the exercised and non-exercised limb, with surface electromyographic (sEMG) and mechanomyography (sMMG) amplitude (AMP) and mean power frequency (MPF) recorded from each limb’s vastus lateralis. There were no fatigue-induced, sex-dependent, differences in time to task failure (p = 0.265) or ipsilateral performance fatigability (p = 0.437). However, there was a limb by time interaction (p < 0.001) which indicated decreases in MVIC force of the ipsilateral, exercised (p < 0.001), but not the contralateral, non-exercised limb (p = 0.962). There were no sex-dependent, fatigue-induced differences in neurophysiological outcomes between the limbs (p > 0.05), but there was a fatigue-induced difference in sEMG MPF (p = 0.005). To summarize, there were no differences in fatigability between males and females. Moreover, there was insufficient evidence to support the presence of a general crossover effect following submaximal unilateral isometric exercise. However, independent of sex, the neurophysiological outcomes suggested that competing inputs from the nervous system may influence the performance of both limbs following unilateral fatigue.en_US
dc.publisherMDPIen_US
dc.rights© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectNon-localized muscle fatigueen_US
dc.subjectCross-over effectsen_US
dc.subjectPerformance fatigabilityen_US
dc.titleUnilaterally Induced Quadriceps Fatigue during Sustained Submaximal Isometric Exercise Does Not Alter Contralateral Leg Extensor Performanceen_US
dc.typeArticleen_US
kusw.kuauthorWeir, Joseph P.
kusw.kudepartmentHealth, Sport & Exercise Sciencesen_US
dc.identifier.doi10.3390/jfmk8020085en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.identifier.pmidPMC10301249en_US
dc.rights.accessrightsopenAccessen_US


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© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Except where otherwise noted, this item's license is described as: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.