EXERCISE-ASSOCIATED HYPONATREMIA

Disorders of serum sodium occur commonly in athletes participating in endurance sports. The most life-threatening of these is hyponatremia, which can occur in as many as 2% to 7% of participants. Exercise-associated hyponatremia (EAH) is caused by a combination of excessive water or hypotonic fluid intake as well as high levels of arginine vasopressin, which [...]

FLUID CHANGES DURING PREGNANCY: USE OF BIOIMPEDANCE SPECTROSCOPY

The increase in body water during pregnancy is responsible for the largest portion of weight gain and is of interest of clinical practitioners. However, assessing changes in body fluids is not easily accomplished during pregnancy. The purpose of this study was to examine the accuracy of bioelectrical impedance spectroscopy for estimating fluid volumes before, during, [...]

By |2013-01-31T18:34:20+00:00enero 31st, 2013|Assessment methodologies, Scientific papers|0 Comments

EXPANDED PREDICTION EQUATIONS OF HUMAN SWEAT LOSS AND WATER NEEDS

The Institute of Medicine expressed a need for improved sweating rate (msw) prediction models that calculate hourly and daily water needs based on metabolic rate, clothing, and environment. More than 25 years ago, the original Shapiro prediction equation (OSE) was formulated as msw (g.m(-2).h(-1))=27.9.Ereq.(Emax)(-0.455), where Ereq is required evaporative heat loss and Emax is maximum [...]

By |2013-01-31T18:34:20+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

FITNESS ALTERS FLUID REGULATORY BUT NOT BEHAVIOURAL RESPONSES TO HYPOHYDRATED EXERCISE

Dehydration is typical during prolonged exercise. Because training stimulates numerous adaptations, some involving fluid regulation, it is conceivable that training involves adaptations to dehydration. This study tested the hypothesis that trained individuals have altered fluid regulatory, but not behavioural or perceptual responses to exercise when hypohydrated. Six trained (V.O2 peak: 65 ± 8 mL kg− [...]

By |2013-01-31T18:34:20+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments

FLUID AND ELECTROLYTE BALANCE: THE IMPACT OF GOAL DIRECTED TEACHING

Background & aimsnWe aimed to determine if a structured workshop on fluid and electrolyte balance for junior surgical trainees led to an improvement in knowledge on the subject and to evaluate the perceived helpfulness of such a workshop.nnMethodsnSurgical trainees attended an interactive lecture-based workshop on fluid and electrolyte balance. Participants had online access to the [...]

REDUCED THIRST AFTER WATER DEPRIVATION IN HEALTHY ELDERLY MEN

To determine whether responses to dehydration are altered with age, we investigated the thirst, fluid and electrolyte responses, and hormonal responses to 24 hours of water deprivation in seven healthy active elderly men (67 to 75 years old) and seven healthy young men (20 to 31 years old) who were matched for weight loss during [...]

By |2013-01-31T18:34:20+00:00enero 31st, 2013|Age and the elderly, Scientific papers|0 Comments

FLUID CONSUMPTION AND SWEATING IN NATIONAL FOOTBALL LEAGUE AND COLLEGIATE FOOTBALL PLAYERS WITH DIFFERENT ACCESS TO FLUIDS DURING PRACTICE

CONTEXT: Considerable controversy regarding fluid replacement during exercise currently exists. OBJECTIVE: To compare fluid turnover between National Football League (NFL) players who have constant fluid access and collegiate football players who replace fluids during water breaks in practices. DESIGN: Observational study. SETTING: Respective preseason training camps of 1 National Collegiate Athletic Association Division II (DII) [...]

By |2013-01-31T18:34:20+00:00enero 31st, 2013|Exercise and sport, Scientific papers|0 Comments