Sex Differences in Sustained Attention Performance and Neuromuscular Fatigue During an Intense Cognitive-Motor Dual Task in Normoxia and Hypoxia.
Purpose: As females have been shown to exhibit greater resistance to fatigue in muscles but lower hypoxia-induced cerebral oxygen saturation during whole-body exercise, this study was conducted to assess their responses to intense cognitive-motor dual-task (CMDT) situations. Recent research has show...
| Publicado en: | International Journal of Sports Physiology & Performance Vol. 20; no. 10; pp. 1393 - 1403 |
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| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Human Kinetics Publishers, Inc.
Oct2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=188265588&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 188265588 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15550265 16IB jtl: International Journal of Sports Physiology & Performance issn: 15550265 maglogo: N pubinfo: dt: Oct2025 vid: 20 iid: 10 pid: 553 pub: Human Kinetics Publishers, Inc. place: Champaign, Illinois artinfo: ui: 188265588 188265588 188265588 10.1123/ijspp.2025-0022 188265588 ppf: 1393 ppct: 10 formats: tig: atl: Sex Differences in Sustained Attention Performance and Neuromuscular Fatigue During an Intense Cognitive-Motor Dual Task in Normoxia and Hypoxia. aug: au: Goepp, Thomas Hayes, Mark Di Domenico, Hervé Millet, Guillaume Y. Hot, Pascal Rupp, Thomas affil: Inter-University Laboratory of Human Movement Sciences, LIBM University Savoie Mont-Blanc, Chambéry, France sug: subj: Sex Factors Task Performance and Analysis Neuromuscular Control Fatigue Anoxia Psychomotor Performance Cognition Attention Oxygen Saturation Athletic Performance Human Male Female Cycling Prefrontal Cortex Oxygenation Spectroscopy, Near-Infrared Descriptive Statistics Menstrual Cycle Running Data Analysis Software Analysis of Variance Electric Stimulation Scales Funding Source Male Female ab: Purpose: As females have been shown to exhibit greater resistance to fatigue in muscles but lower hypoxia-induced cerebral oxygen saturation during whole-body exercise, this study was conducted to assess their responses to intense cognitive-motor dual-task (CMDT) situations. Recent research has shown that intense CMDT involving whole-body exercise increases neuromuscular fatigue and impairs cognitive performance, both exacerbated in hypoxic conditions. Methods: Twenty-two healthy young adults (11 females) first performed a session in normoxia, including separated cognitive (CTLCOG), and cycling tasks (CTLEX). This session was followed by 2 CMDT sessions performed in randomized order under normoxia (CMDTNOR) and hypoxia (CMDTHYP). The physical exercise consisted of 20-minute cycling at a "hard" perceived effort, and the cognitive task consisted of a 15-minute Sustained Attention to Response time Task. Psychophysiological measurements included knee-extensor neuromuscular fatigue (peripheral/central fatigue components using femoral nerve electrical stimulation) and prefrontal cortex oxygenation assessed by near-infrared spectroscopy. Results: Sustained Attention to Response time Task performance was similarly decreased for males and females (P =.32) in CMDTHYP (−6.3% [1.5%], P <.001) and CMDTNOR (−3.9% [1.5%], P =.048) versus CTLCOG. Neuromuscular fatigue was significant postcycling (P <.001), independent of sex (P =.71) and condition (P =.53). Maximal voluntary activation was similarly impaired between sexes (P =.37) in CMDTNOR (−5.8% [0.8%], P <.001) and CMDTHYP (−5.5% [0.8%], P <.001) versus CTLEX. No difference was observed in prefrontal cortex oxygenation during CMDTHYP (P =.23) for either males (44.9% [5.3%]) or females (44.3% [2.7%]). Conclusion: These findings suggest that intense whole-body CMDTs performed in normoxia and hypoxia negatively impact knee-extensor neuromuscular fatigue, sustained attention, and prefrontal cortex oxygenation, but the effect does not differ between sexes. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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