Keyphrases
Hypoxia
100%
Acute Mountain Sickness
55%
High Altitude
45%
Upper Respiratory Tract Infection
37%
Prospective Cohort Study
36%
Respiratory Infection
36%
Vitamin D Metabolites
33%
Environmental Stress
33%
Placebo
30%
24,25(OH)2D
30%
Normobaric Hypoxia
29%
Older Adults
28%
Healthy Adults
27%
Simulated Sunlight
27%
Endurance Performance
26%
Military Training
26%
Normoxia
25%
Vitamin D Supplementation
25%
Dietary Nitrate
24%
Acute Hypoxia
23%
Healthy Individuals
23%
Sense of Effort
23%
Heat Acclimation
23%
1,25(OH)2D3
22%
Exercise Performance
22%
Confidence Interval
22%
Dehydration
22%
Exercise in the Heat
22%
Nitrate Supplementation
22%
Diagnostic Accuracy
22%
Iron Status
22%
Immune Function
22%
Water-based Exercise
22%
Hot Water Immersion
22%
25-hydroxyvitamin D (25OHD)
20%
Vitamin D3
20%
Muscle Sympathetic Nerve Activity
20%
Ferritin
19%
Hypoxic Exercise
17%
Saliva
17%
Time to Exhaustion
17%
Vitamin D
17%
Perceived Exertion
16%
Metabolism
16%
Military Recruits
16%
Hydration Indices
15%
Blood Pressure
14%
During Exercise
14%
Internal Carotid Artery
14%
Sympathetic Vasomotor Activity
14%
Medicine and Dentistry
Hypoxia
83%
Vitamin D
66%
Altitude Disease
62%
Supplementation
59%
Metabolite
37%
Respiratory Tract Infection
36%
Upper Respiratory Tract Infection
36%
Placebo
27%
Exercise
25%
Blood Pressure
24%
Immune Function
22%
Nitric Oxide
18%
Acclimatization
17%
Nerve Conduction
15%
Sympathetic Nerve
15%
Randomized Controlled Trial
14%
Prospective Cohort Study
14%
Lung Gas Exchange
13%
Bone Density
13%
Observational Study
13%
Oxygen Saturation
13%
Mucosal Immunity
12%
Internal Carotid Artery
12%
Vascular Resistance
12%
Immunology
12%
Secretory Immunoglobulin
11%
Cerebral Autoregulation
11%
Sleep Quality
11%
Intracranial Hypertension
11%
Lung Artery Pressure
11%
Exhalation
11%
Injury
11%
Skeletal Muscle
11%
Oral Contraceptive Agent
11%
Contraceptive Behavior
11%
Hyperaemia
11%
Blood Flow
11%
Thyroid Hormone
11%
Heat Acclimatization
11%
Physical Performance
11%
Endothelial Function
11%
Menstrual Cycle
11%
Musculoskeletal Injury
11%
Hot Water
11%
Vertebral Artery
9%
Colecalciferol
9%
Muscle Strength
9%
Body Mass Index
8%
Single Nucleotide Polymorphism
8%
Vitamin D Receptor
8%