Effect of beta-alanine supplementation on 2000-m rowing-ergometer performance.

Area of Science:

• Sports Science
• Exercise Physiology
• Nutritional Supplementation

Background:

• Beta-alanine supplementation is known to enhance high-intensity exercise performance.
• Its ergogenic effect on actual sporting events requires further investigation through field or simulation testing.

Purpose of the Study:

• To evaluate the impact of beta-alanine supplementation on 2,000-meter rowing-ergometer performance in well-trained male athletes.

Main Methods:

• Sixteen well-trained male rowers participated in a 28-day supplementation study.
• Participants completed two 2,000-meter rowing trials before and after supplementation with either beta-alanine (80 mg·kg⁻¹·d⁻¹) or a placebo.

Main Results:

• The beta-alanine group showed a non-significant improvement in overall race time (2.9 ± 4.1 s; p = .055).
• Significant improvements in split times and power output were observed at the 750-m and 1,000-m marks with beta-alanine.
• Post-race blood lactate and pH levels did not differ between the beta-alanine and placebo groups.

Conclusions:

• Twenty-eight days of beta-alanine supplementation at 80 mg·kg⁻¹·d⁻¹ did not conclusively improve 2,000-meter rowing performance in well-trained rowers.
• The ergogenic benefits of beta-alanine may be interval-specific rather than providing overall performance enhancement in this rowing simulation.