Source:http://linkedlifedata.com/resource/pubmed/id/20689095
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
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| pubmed:dateCreated |
2010-10-13
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| pubmed:abstractText |
We examined whether protein and carbohydrate (CHO) supplementation during 5-day training enhanced plasma volume (PV) expansion and thermoregulatory and cardiovascular adaptations in young men. Eighteen men [age 23 ± 4 (SD) yr] were divided into two groups according to supplements: placebo (CNT: 0.93 kcal/kg, 0.00 g protein/kg, n = 9) and protein and CHO (Pro-CHO: 3.6 kcal/kg, 0.36 protein/kg, n = 9). Subjects in both groups performed a cycling exercise at 70% peak oxygen consumption rate (VO2peak), 30 min/day, for 5 consecutive days at 30°C ambient temperature and 50% relative humidity and took either a placebo or Pro-CHO within 10 min after exercise for each day. Before and after training, PV at rest, heart rate (HR), and esophageal temperature (T(es)) during 30-min exercise at 65% of pretraining VO2peak in the same condition as training were determined. Also, the sensitivity of the chest sweat rate (?SR/?T(es)) and forearm vascular conductance (?FVC/?T(es)) in response to increased T(es) were determined. After training, PV and cardiac stroke volume (SV) at rest increased in both groups (P < 0.001) but the increases were twofold higher in Pro-CHO than CNT (P = 0.007 and P = 0.078, respectively). The increases in HR from 5 to 30 min and T(es) from 0 to 30 min of exercise were attenuated after training in both groups with greater attenuation in Pro-CHO than CNT (P = 0.002 and P = 0.072, respectively). ?SR/?T(es) increased in CNT (P = 0.052) and Pro-CHO (P < 0.001) and the increases were higher in Pro-CHO than CNT (P = 0.018). ?FVC/?T(es) increased in Pro-CHO (P < 0.001), whereas not in CNT (P = 0.16). Thus protein-CHO supplementation during 5-day training enhanced PV expansion and thermoregulatory adaptation and, thereby, the reduction in heat and cardiovascular strain in young men.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:citationSubset |
IM
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| pubmed:chemical | |
| pubmed:status |
MEDLINE
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| pubmed:month |
Oct
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| pubmed:issn |
1522-1601
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:volume |
109
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
1247-55
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| pubmed:meshHeading |
pubmed-meshheading:20689095-Adaptation, Physiological,
pubmed-meshheading:20689095-Adult,
pubmed-meshheading:20689095-Analysis of Variance,
pubmed-meshheading:20689095-Bicycling,
pubmed-meshheading:20689095-Body Temperature Regulation,
pubmed-meshheading:20689095-Dietary Carbohydrates,
pubmed-meshheading:20689095-Dietary Proteins,
pubmed-meshheading:20689095-Dietary Supplements,
pubmed-meshheading:20689095-Exercise,
pubmed-meshheading:20689095-Heat Stress Disorders,
pubmed-meshheading:20689095-Hemodynamics,
pubmed-meshheading:20689095-Humans,
pubmed-meshheading:20689095-Japan,
pubmed-meshheading:20689095-Male,
pubmed-meshheading:20689095-Oxygen Consumption,
pubmed-meshheading:20689095-Plasma Volume,
pubmed-meshheading:20689095-Serum Albumin,
pubmed-meshheading:20689095-Sweating,
pubmed-meshheading:20689095-Time Factors,
pubmed-meshheading:20689095-Young Adult
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| pubmed:year |
2010
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| pubmed:articleTitle |
Protein and carbohydrate supplementation during 5-day aerobic training enhanced plasma volume expansion and thermoregulatory adaptation in young men.
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| pubmed:affiliation |
Dept. of Sports Medical Sciences, Shinshu Univ. Graduate School of Medicine, 3-1-1 Asahi Matsumoto 390-8621, Japan.
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| pubmed:publicationType |
Journal Article,
Controlled Clinical Trial,
Research Support, Non-U.S. Gov't
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