Responses to moderate and low sodium diets during exercise-heat acclimation.
Int J Sport Nutr
; 3(2): 207-21, 1993 Jun.
Article
em En
| MEDLINE
| ID: mdl-8508197
ABSTRACT
This investigation examined whether low sodium (Na+) (LNA; 68 mEq Na+.d-1) or moderate Na+ (MNA; 137 mEq Na+.d-1) intake allowed humans to maintain health, exercise, and physiologic function during 10 days of prolonged exercise-heat acclimation (HA). Seventeen volunteers, ages 19 to 21, consumed either LNA (n = 8) or MNA (n = 9) during HA (41 degrees C, 21% RH; treadmill walking for 30 min.h-1, 8 h.d-1 at 5.6 km.h-1, 5% grade), which resulted in significantly reduced heart rate, rectal temperature, and urine Na+ for both groups. There were few between-diet differences in any variables measured. Mean plasma volume in LNA expanded significantly less than in MNA by Days 11 and 15, but reached the MNA level on Day 17 (+12.3 vs. +12.4%). The absence of heat illness, the presence of normal physiologic responses, and the total distance walked indicated successful and similar HA with both levels of dietary Na+.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sódio na Dieta
/
Exercício Físico
/
Clima Desértico
/
Aclimatação
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Int J Sport Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
/
MEDICINA ESPORTIVA
Ano de publicação:
1993
Tipo de documento:
Article
País de publicação:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA