Effects of 120 vs. 60 and 90 g/h carbohydrate intake during a trail marathon on neuromuscular function and high intensity run capacity recovery

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dc.contributor.authorUrdampilleta Otegui, Aritz
dc.contributor.authorArribalzaga Petrozzi, María Soledad
dc.contributor.authorViribay, Aitor
dc.contributor.authorCastañeda Babarro, Arkaitz
dc.contributor.authorSeco Calvo, Jesús
dc.contributor.authorMielgo Ayuso, Juan
dc.date.accessioned2025-06-10T10:16:16Z
dc.date.available2025-06-10T10:16:16Z
dc.date.issued2020-07-15
dc.date.updated2025-06-10T10:16:15Z
dc.description.abstractBackground: Current carbohydrate (CHO) intake recommendations for ultra-trail activities lasting more than 2.5 h is 90 g/h. However, the benefits of ingesting 120 g/h during a mountain marathon in terms of post-exercise muscle damage have been recently demonstrated. Therefore, the aim of this study was to analyze and compare the effects of 120 g/h CHO intake with the recommendations (90 g/h) and the usual intake for ultra-endurance athletes (60 g/h) during a mountain marathon on internal exercise load, and post-exercise neuromuscular function and recovery of high intensity run capacity. Methods: Twenty-six elite trail-runners were randomly distributed into three groups: LOW (60 g/h), MED (90 g/h) and HIGH (120 g/h), according to CHO intake during a 4000-m cumulative slope mountain marathon. Runners were measured using the Abalakov Jump test, a maximum a half-squat test and an aerobic power-capacity test at baseline (T1) and 24 h after completing the race (T2). Results: Changes in Abalakov jump time (ABKJT), Abalakov jump height (ABKH), half-squat test 1 repetition maximum (HST1RM) between T1 and T2 showed significant differences by Wilcoxon signed rank test only in LOW and MED (p < 0.05), but not in the HIGH group (p > 0.05). Internal load was significantly lower in the HIGH group (p = 0.017) regarding LOW and MED by Mann Whitney u test. A significantly lower change during the study in ABKJT (p = 0.038), ABKH (p = 0.038) HST1RM (p = 0.041) and in terms of fatigue (p = 0.018) and lactate (p = 0.012) within the aerobic power-capacity test was presented in HIGH relative to LOW and MED. Conclusions: 120 g/h CHO intake during a mountain marathon might limit neuromuscular fatigue and improve recovery of high intensity run capacity 24 h after a physiologically challenging event when compared to 90 g/h and 60 g/h.en
dc.identifier.citationUrdampilleta, A., Arribalzaga, S., Viribay, A., Castañeda-Babarro, A., Seco-Calvo, J., & Mielgo-Ayuso, J. (2020). Effects of 120 vs. 60 and 90 g/h carbohydrate intake during a trail marathon on neuromuscular function and high intensity run capacity recovery. Nutrients, 12(7). https://doi.org/10.3390/NU12072094
dc.identifier.doi10.3390/NU12072094
dc.identifier.eissn2072-6643
dc.identifier.urihttp://hdl.handle.net/20.500.14454/2992
dc.language.isoeng
dc.publisherMDPI AG
dc.rights© 2020 by the authors
dc.subject.otherResistance
dc.subject.otherCarbohydrates
dc.subject.otherFatigue
dc.subject.otherRecovery
dc.subject.otherGut training
dc.subject.otherPerformance
dc.subject.otherGastrointestinal discomfort
dc.subject.otherAbsorption
dc.titleEffects of 120 vs. 60 and 90 g/h carbohydrate intake during a trail marathon on neuromuscular function and high intensity run capacity recoveryen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.issue7
oaire.citation.titleNutrients
oaire.citation.volume12
oaire.licenseConditionhttps://creativecommons.org/licenses/by/4.0/
oaire.versionVoR
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