Abstract
Background and objectives: To investigate the effects of vinegar ingestion upon high-intensity cycle performance in recreationally trained individuals. Materials and methods: Twenty-two participants consumed one of the following in a randomized order on four separate visits: (1) 29 mL of vinegar along with 451 mL of water, (2) 39 g of sucrose along with 441 mL of water, (3) 29 mL of vinegar and 39 g of sucrose along with 412 mL of water, or (4) 480 mL of water alone. For each of the experimental testing sessions, all participants completed in order: (1) high-intensity cycle test 1, (2) fatiguing cycle test, (3) high-intensity cycle test 2, (4) supplement consumption, (5) 90 min rest period, and (6) high-intensity cycle test 3. Total time to exhaustion (TTE) and average heart rate (HR) for each set of sprints was used in analysis. Results: There was no supplement by time interaction or significant main treatment effect observed (p > 0.05) for either TTE or HR. However, there was a main time effect observed, with TTE (p = 0.0001) being lower for cycle test 2 than both cycle test 1 and cycle test 3, and cycle test 3 being lower than cycle test 1. HR (p = 0.0001) was lower for cycle test 3 than both cycle test 1 and cycle test 2, but HR for cycle test 1 did not differ significantly from HR for cycle test 2. Conclusions: The addition of vinegar or sucrose alone, or in combination, was ineffective in improving cycle sprinting TTE when performing three cycle tests.
Highlights
The ability to maintain muscular force/power production during sport/exercise is at the utmost importance, with any acute impairment in force production or power generation being the primary definition of fatigue [1]
time to exhaustion (TTE) was lower for high-intensity cycle test 2 than both high-intensity cycle test 1 and high-intensity cycle test 3, and high-intensity cycle test 3 was lower than high-intensity cycle test 1 (Table 2)
There was no significant supplement by time interaction for either TTE (p > 0.05; η2 = 0.05) (Figure 1) or heart rate (HR) (p > 0.05; η2 = 0.05) (Figure 2)
Summary
The ability to maintain muscular force/power production during sport/exercise is at the utmost importance, with any acute impairment in force production or power generation being the primary definition of fatigue [1]. The mechanisms of fatigue should be investigated in a holistic manner Keeping true to this statement, one important aspect to performance is substrate utilization, glycogen availability. The ability to rapidly replenish glycogen levels in either the muscle or liver becomes extremely important to maintain both central and peripheral nervous system processes, along with substrate utilization during exercise. To investigate the effects of vinegar ingestion upon high-intensity cycle performance in recreationally trained individuals. Results: There was no supplement by time interaction or significant main treatment effect observed (p > 0.05) for either TTE or HR. There was a main time effect observed, with TTE (p = 0.0001) being lower for cycle test 2 than both cycle test 1 and cycle test 3, and cycle test 3 being lower than cycle test 1.
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