Effects of sodium bicarbonate ingestion on hyperventilation and recovery of blood pH after a short-term intense exercise

Title:

Effects of sodium bicarbonate ingestion on hyperventilation and recovery of blood pH after a short-term intense exercise

Creator:

Yunoki, T., Matsuura, R., Arimitsu, T., Kimura, T., and Yano, T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:56e59d2e-001b-46b8-a0ee-cb925ef05df6
uuid:56e59d2e-001b-46b8-a0ee-cb925ef05df6

Subject:

Fyziologie člověka a srovnávací fyziologie, acidobazická rovnováha, dýchání, odpočinek, ventila, acid-base equilibrium, respiration, rest, exercise, ventilatory control, 14, and 612

Type:

article, články, model:article, and TEXT

Description:

To determine the relationship between hyperventilation and recovery of blood pH during recovery from a heavy exercise, short-term intense exercise (STIE) tests were performed after human subjects ingested 0.3 g · kg-1 body mass of either NaHCO3 (Alk) or CaCO3 (Pla). Ventilation (V.E) - CO2 output (V.co2) slopes during recovery following STIE were significantly lower in Alk than in Pla, indicating that hyperventilation is attenuated under the alkalotic condition. However, this reduction of the slope was the result of unchanged V.E and a small increase in V.co 2.A significant correlation between V.E and blood pH was found during recovery in both conditions. While there was no difference between the V.E - pH slopes in the two conditions, V.E at the same pH was higher in Alk than in Pla. Furthermore, the values of pH during recovery in both conditions increased toward the preexercise levels of each condition. Thus, although V.E - V.co 2 slope was decreased under the alkalotic condition, this could not be explained by the ventilatory depression attributed to increase in blood pH. We speculate that hy perventilation after the end of STIE is determined by the V.E - pH relationship that was set before STIE or the intensity of the exercise performed., T. Yunoki ... [et al.]., and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2009 Volume:58 | Number:4

Harvested from:

CDK

Metadata only:

false