Background: Research has shown that ingesting 0.3 g·kg body mass sodium bicarbonate (NaHCO) can improve time-to-exhaustion (TTE) cycling performance, but the influence of psychophysiological mechanisms on ergogenic effects is not yet understood.
Objective: This study retrospectively examined whether changes in TTE cycling performance are mediated by positive expectations of receiving NaHCO and/or the decline in blood bicarbonate during exercise.
Background: Sodium bicarbonate (NaHCO) is a well-established nutritional ergogenic aid, though gastrointestinal (GI) distress is a common side-effect. Delayed-release NaHCO may alleviate GI symptoms and enhance bicarbonate bioavailability following oral ingestion, although this has yet to be confirmed.
Methods: In a randomised crossover design, pharmacokinetic responses and acid-base status were compared following two forms of NaHCO, as were GI symptoms.
Background: Individual time to peak blood bicarbonate (HCO) has demonstrated good to excellent reproducibility following ingestion of both 0.2 g kg body mass (BM) and 0.3 g kg BM sodium bicarbonate (NaHCO), but the consistency of the time trial (TT) performance response using such an individualised NaHCO ingestion strategy remains unknown.
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