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
Aritz UrdampilletaJuan Mielgo-Ayuso

Abstract

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. 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). 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...Continue Reading

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Citations

Aug 17, 2020·Nutrients·José Miguel Martínez-SanzIva Marques-Lopes
Aug 23, 2020·International Journal of Environmental Research and Public Health·Nicolas BergerRuss Best
Dec 4, 2020·International Journal of Environmental Research and Public Health·Sérgio MatosJosé María Cancela Carral
Jan 28, 2021·Nutrients·Juan Mielgo-Ayuso, Diego Fernández-Lázaro
May 29, 2021·Journal of the International Society of Sports Nutrition·Alireza NaderiSajjad Rezaei
Jun 3, 2021·International Journal of Environmental Research and Public Health·Francisco PradasCarlos Castellar
Jun 3, 2021·International Journal of Environmental Research and Public Health·Kengo IshiharaYasuyuki Nakamura
Jun 3, 2021·International Journal of Environmental Research and Public Health·Soledad ArribalzagaJuan Mielgo-Ayuso
Jun 10, 2021·Medicine and Science in Sports and Exercise·Thibault BessonGuillaume Y Millet

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Software Mentioned

SPSS
Statistical Package for the Social Sciences
PowerLiftversion

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