Impact of Nutrient Intake on Hydration Biomarkers Following Exercise and Rehydration Using a Clustering-Based Approach.
Adult
Aged
Bicycling
/ physiology
Biomarkers
/ blood
Cluster Analysis
Drinking
/ physiology
Eating
/ physiology
Female
Fluid Therapy
Glycopeptides
/ blood
Humans
Linear Models
Machine Learning
Male
Middle Aged
Nutritional Physiological Phenomena
/ physiology
Organism Hydration Status
/ physiology
Young Adult
clustering
collinearity
copeptin
exercise
hydration
nutrition
sport nutrition
Journal
Nutrients
ISSN: 2072-6643
Titre abrégé: Nutrients
Pays: Switzerland
ID NLM: 101521595
Informations de publication
Date de publication:
30 Apr 2020
30 Apr 2020
Historique:
received:
30
03
2020
revised:
21
04
2020
accepted:
27
04
2020
entrez:
6
5
2020
pubmed:
6
5
2020
medline:
16
2
2021
Statut:
epublish
Résumé
We investigated the impact of nutrient intake on hydration biomarkers in cyclists before and after a 161 km ride, including one hour after a 650 mL water bolus consumed post-ride. To control for multicollinearity, we chose a clustering-based, machine learning statistical approach. Five hydration biomarkers (urine color, urine specific gravity, plasma osmolality, plasma copeptin, and body mass change) were configured as raw- and percent change. Linear regressions were used to test for associations between hydration markers and eight predictor terms derived from 19 nutrients merged into a reduced-dimensionality dataset through serial k-means clustering. Most predictor groups showed significant association with at least one hydration biomarker: 1) Glycemic Load + Carbohydrates + Sodium, 2) Protein + Fat + Zinc, 3) Magnesium + Calcium, 4) Pinitol, 5) Caffeine, 6) Fiber + Betaine, and 7) Water; potassium + three polyols, and mannitol + sorbitol showed no significant associations with any hydration biomarker. All five hydration biomarkers were associated with at least one nutrient predictor in at least one configuration. We conclude that in a real-life scenario, some nutrients may serve as mediators of body water, and urine-specific hydration biomarkers may be more responsive to nutrient intake than measures derived from plasma or body mass.
Identifiants
pubmed: 32365848
pii: nu12051276
doi: 10.3390/nu12051276
pmc: PMC7282025
pii:
doi:
Substances chimiques
Biomarkers
0
Glycopeptides
0
copeptins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Déclaration de conflit d'intérêts
The authors declare no conflicts of interest.
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