Effect of exercise and fluid consumption on salivary flow and pH
| Autor: | Craig A. Horswill, John R. Stofan, R Murray, M. Horn, D. E. Eddy |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Adult
Male Saliva Hot Temperature Physical exercise Physical Therapy Sports Therapy and Rehabilitation Beverages Saliva collection stomatognathic system medicine Humans Orthopedics and Sports Medicine Tooth Erosion Dehydration Food science Exercise Orange juice Consumption (economics) Beverage consumption Chemistry Hydrogen-Ion Concentration medicine.disease Sports drink Flow (mathematics) Fruit juice Female Salivation |
| Zdroj: | International journal of sports medicine. 27(6) |
| ISSN: | 0172-4622 |
| Popis: | Recent claims have been made regarding the putative erosive effects of regularly ingesting low-pH beverages on the integrity of tooth enamel. The purpose of this study was to determine whether fluid consumption during exercise affects the body's defenses against enamel erosion: saliva flow and salivary pH. Males and females (n=50) exercised in the heat (26.7 degrees C, 40 % RH) for 75 min on four occasions. Within each session, subjects consumed ad-lib either water, a sports drink (Gatorade), diluted orange juice, or a homemade sports drink, with the latter three fluids all having low pH values (3.0 to 4.0). Prior to and following exercise, subjects performed a standard stimulated saliva collection procedure. Immediately following collection, saliva flow rate and pH were determined for each sample. Repeated-measures ANOVA were used to evaluate the data. Compared to pre-exercise salivary flow rates (2.6+/- 0.8 ml/min), the post-exercise rate was not different when consuming the sports drink (2.6+/- 0.9 ml/min), but decreased when water or the homemade sports drink was ingested (2.4+/- 0.9 ml/min; p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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