Effect of hydration state on resistance exercise-induced endocrine markers of anabolism, catabolism, and metabolism.

Hypohydration (decreased total body water) exacerbates the catabolic hormonal response to endurance exercise with unclear effects on anabolic hormones. Limited research exists that evaluates the effect of hypohydration on endocrine responses to resistance exercise; this work merits attention as the acute postexercise hormonal environment potently modulates resistance training adaptations. The purpose of this study was [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

EFFECTS OF MATERNAL HYDRATION ON FETAL RENAL PYELECTASIS.

Fetal renal pyelectasis is a frequent finding on routine obstetrical sonography. The cause of this pelvocalyceal dilatation is often not apparent, although urinary tract obstruction is the most important condition to be excluded. One of the many hypothetical explanations for minimal fetal renal pyelectasis suggests that aggressive maternal hydration before sonography leads to fetal diuresis [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Pregnancy and infancy, Scientific papers|0 Comments

Recovery from prolonged exercise: restoration of water and electrolyte balance.

Rapid and complete restoration of fluid balance after exercise is an important part of the recovery process, especially in hot, humid conditions, when sweat losses may be high. Rehydration after exercise can only be achieved if the electrolytes lost in sweat, as well as the lost water, are replaced. However, the amount of electrolytes lost [...]

Hydration recommendations for sport 2008.

Fluid replacement remains an important strategy for preserving exercise performance as dehydration in excess of 2% of body weight consistently impairs aerobic exercise performance. Too much of a good thing, however, can have negative health consequences as persistent drinking in excess of sweating rate can induce symptomatic exercise associated hyponatremia. This short review highlights new [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

ASSESSMENT OF CHANGE IN HYDRATION IN WOMEN DURING PREGNANCY AND POSTPARTUM WITH BIOELECTRICAL IMPEDANCE VECTORS.

OBJECTIVE: This study tested the hypothesis that bioelectrical impedance vectors, group and individual, are valid indicators of total body water (TBW) and hydration status in women experiencing fluid gain and loss during and after pregnancy. METHODS: We measured TBW, assessed with D(2)O dilution, and resistance (R) and reactance (Xc), determined with 800 microA at 50 [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Assessment methodologies, Scientific papers|0 Comments

American College of Sports Medicine position stand. Exercise and fluid replacement.

It is the position of the American College of Sports Medicine that adequate fluid replacement helps maintain hydration and, therefore, promotes the health, safety, and optimal physical performance of individuals participating in regular physical activity. This position statement is based on a comprehensive review and interpretation of scientific literature concerning the influence of fluid replacement [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

Exercise, heat, hydration and the brain.

The performance of both physical and mental tasks can be adversely affected by heat and by dehydration. There are well-recognized effects of heat and hydration status on the cardiovascular and thermoregulatory systems that can account for the decreased performance and increased sensation of effort that are experienced in the heat. Provision of fluids of appropriate [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

TREATMENT OF NAUSEA AND VOMITING IN PREGNANCY. WHEN SHOULD IT BE TREATED AND WHAT CAN BE SAFELY TAKEN?

Nausea and vomiting are both common in early pregnancy. Most cases are mild and do not require treatment. However, persistent vomiting and severe nausea can progress to hyperemesis if the woman is unable to maintain adequate hydration, and fluid and electrolyte as well as nutritional status are jeopardised. Hyperemesis gravidarum is a diagnosis of exclusion, [...]

Effects of three hydration beverages on exercise performance during 60 hours of heat exposure

Without adequate hydration, profound heat stress and dehydration can occur in people who work in hot environments. This study evaluated the effectiveness of three beverages on temperature regulation, cardiovascular response, and work performance during 60 h of dry heat exposure. Volunteer subjects lived in a climatic chamber in simulated desert conditions varying from 25-45 degrees [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

Role of whole foods in promoting hydration after exercise in humans.

Various reports indicate that humans receive 20-25% of their daily water intake from food. Fruits, vegetables and other high-moisture foods, therefore, make an important contribution to total fluid intake. In addition, co-ingestion of other nutrients and ingredients can impact drinking behavior, absorption, distribution and retention of water, all of which contribute to the person's hydration [...]

By |2013-01-31T18:33:08+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments