Publications by authors named "J Mielgo-Ayuso"

Background: Long-distance swimmers exert energetic, physiological, and neuromuscular demands that must be matched with adequate body composition to improve their performance in long-distance swimming.

Objectives: This review aims to compile all available information on energetic and physiological demands, optimal body composition, nutrition, and ergogenic supplements in long-distance swimming. This will provide an understanding of the specific challenges and needs of this sport and will help swimmers and coaches design more effective training and nutrition plans to optimise performance and achieve their goals.

View Article and Find Full Text PDF
Article Synopsis
  • Citrulline (CIT) and beetroot extract (BR) supplements were studied for their effects on exercise performance and metabolic outcomes in elite rowers, focusing on oxygen consumption, carbon dioxide production, energy expenditure, and efficiency.
  • A randomized, double-blind, placebo-controlled crossover trial with 20 elite rowers was conducted, comparing effects after a week of supplementation with placebo, BR, and combined BR-CIT.
  • The results indicated no significant differences in metabolic measurements like energy expenditure and substrate utilization between the groups, suggesting that longer durations or higher doses of supplementation may be needed to see any benefits in metabolic outcomes.
View Article and Find Full Text PDF

Childhood obesity is a major public health burden. The prevalence of weight excess for children and the adolescent population (8 to 16 years) is 34.9%.

View Article and Find Full Text PDF

The testosterone to cortisol ratio (T:C ratio) is a measure of whether elite athletes are recovering from their training. This study described this hormone balance stress in elite women's basketball. (1) Objectives: to analyse the fluctuation of T:C ratio over a 16-week period and explore itis relation to their athletic performance.

View Article and Find Full Text PDF

Athletes' anthropometry, and especially their body composition, plays an important role in sport performance in general and in rowing in particular. Rowers' anthropometric and performance profiles may vary according to their position in the boat. The objectives of this study were to investigate the relationship between anthropometry, physical performance, physiological variables, and elite male rowers' boat positions.

View Article and Find Full Text PDF