PMID- 32679728
OWN - NLM
STAT- MEDLINE
DCOM- 20210311
LR  - 20240329
IS  - 2072-6643 (Electronic)
IS  - 2072-6643 (Linking)
VI  - 12
IP  - 7
DP  - 2020 Jul 15
TI  - Effects of 120 vs. 60 and 90 g/h Carbohydrate Intake during a Trail Marathon on 
      Neuromuscular Function and High Intensity Run Capacity Recovery.
LID - 10.3390/nu12072094 [doi]
LID - 2094
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 (ABK(JT)), Abalakov jump height 
      (ABK(H)), half-squat test 1 repetition maximum (HST(1RM)) 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 ABK(JT) (p = 0.038), ABK(H) (p = 
      0.038) HST(1RM) (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.
FAU - Urdampilleta, Aritz
AU  - Urdampilleta A
AD  - Centro Investigacion y Formacion ElikaSport, Cerdanyola del Valles, 08290 
      Barcelona, Spain.
FAU - Arribalzaga, Soledad
AU  - Arribalzaga S
AD  - Institute of Biomedicine (IBIOMED), Physiotherapy Department, University of Leon, 
      Campus de Vegazana, 24071 Leon, Spain.
FAU - Viribay, Aitor
AU  - Viribay A
AD  - Glut4Science, Physiology, Nutrition and Sport, 01004 Vitoria-Gasteiz, Spain.
FAU - Castaneda-Babarro, Arkaitz
AU  - Castaneda-Babarro A
AUID- ORCID: 0000-0002-4568-320X
AD  - Health, Physical Activity and Sports Science Laboratory, Department of Physical 
      Activity and Sports, Faculty of Psychology and Education, University of Deusto, 
      48007 Bizkaia, Spain.
FAU - Seco-Calvo, Jesus
AU  - Seco-Calvo J
AUID- ORCID: 0000-0002-7818-9777
AD  - Institute of Biomedicine (IBIOMED), Physiotherapy Department, University of Leon, 
      Researcher at the Basque Country University, Campus de Vegazana, 24071 Leon, 
      Spain.
FAU - Mielgo-Ayuso, Juan
AU  - Mielgo-Ayuso J
AUID- ORCID: 0000-0002-6554-4602
AD  - Department of Biochemistry, Molecular Biology and Physiology, Faculty of Health 
      Sciences, University of Valladolid, 42004 Soria, Spain.
LA  - eng
PT  - Journal Article
DEP - 20200715
PL  - Switzerland
TA  - Nutrients
JT  - Nutrients
JID - 101521595
RN  - 0 (Dietary Carbohydrates)
SB  - IM
MH  - Adult
MH  - *Athletes
MH  - Athletic Performance/*physiology
MH  - Dietary Carbohydrates/*administration & dosage/metabolism/pharmacology
MH  - Eating/*physiology
MH  - Humans
MH  - Male
MH  - Marathon Running/*physiology
MH  - Muscle Fatigue/drug effects/*physiology
MH  - Muscle, Skeletal/*physiology
MH  - Nutritional Physiological Phenomena/*physiology
MH  - Recovery of Function/*physiology
MH  - Time Factors
PMC - PMC7400827
OTO - NOTNLM
OT  - absorption
OT  - carbohydrates
OT  - fatigue
OT  - gastrointestinal discomfort
OT  - gut training
OT  - performance
OT  - recovery
OT  - resistance
COIS- The authors declare no conflict of interest.
EDAT- 2020/07/19 06:00
MHDA- 2021/03/12 06:00
PMCR- 2020/07/01
CRDT- 2020/07/19 06:00
PHST- 2020/06/03 00:00 [received]
PHST- 2020/06/27 00:00 [revised]
PHST- 2020/07/11 00:00 [accepted]
PHST- 2020/07/19 06:00 [entrez]
PHST- 2020/07/19 06:00 [pubmed]
PHST- 2021/03/12 06:00 [medline]
PHST- 2020/07/01 00:00 [pmc-release]
AID - nu12072094 [pii]
AID - nutrients-12-02094 [pii]
AID - 10.3390/nu12072094 [doi]
PST - epublish
SO  - Nutrients. 2020 Jul 15;12(7):2094. doi: 10.3390/nu12072094.