RT info:eu-repo/semantics/article
T1 Effects of 120 vs. 60 and 90 g/h carbohydrate intake during a trail marathon on neuromuscular function and high intensity run capacity recovery
A1 Urdampilleta, Aritz
A1 Arribalzaga, Soledad
A1 Viribay, Aitor
A1 Castañeda Babarro, Arkaitz
A1 Seco Calvo, Jesús
A1 Mielgo Ayuso, Juan Francisco
K1 Fisiología
K1 Deporte
K1 Resistance
K1 Carbohydrates
K1 Fatigue
K1 Recovery
K1 Resistencia
K1 Carbohidratos
K1 Fatiga
K1 Recuperación
K1 2411.07 Fisiología de la Digestión
K1 2410.10 Fisiología Humana
AB Background: 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
PB MDPI
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/59052
UL https://uvadoc.uva.es/handle/10324/59052
LA eng
NO Nutrients, 2020, vol. 12, n. 7, 2094
NO Producción Científica
DS UVaDOC
RD 21-may-2024