Publications by authors named "J Alcantara"
Key concepts and a world-wide look at plant recruitment networks.
Biol Rev Camb Philos Soc
December 2024
Plant-plant interactions are major determinants of the dynamics of terrestrial ecosystems. There is a long tradition in the study of these interactions, their mechanisms and their consequences using experimental, observational and theoretical approaches. Empirical studies overwhelmingly focus at the level of species pairs or small sets of species.
View Article and Find Full Text PDFBackground: Mammalian cells possess molecular clocks, the adequate functioning of which is decisive for metabolic health. Exercise is known to modulate these clocks, potentially having distinct effects on metabolism depending on the time of day. This study aimed to investigate the impact of morning vs.
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- 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.
Predictive equations are widely employed for estimating the volume of oxygen consumption (VO) while walking, which is ultimately employed to determine energy expenditure and tailor exercise prescription. This study aimed to test the agreement between the measured VO and estimated VO during a walking protocol on a treadmill at 3.5, 4.
View Article and Find Full Text PDFBackground: This study aims to examine the relationship between resting vagal-related heart rate variability (HRV) parameters and heart rate (HR) with resting metabolic rate (RMR) and respiratory exchange ratio (RER) in young adults.
Methods: A total of 74 young adults (22 ± 2 years old, 51 women) were included in this cross-sectional study. HRV was assessed using a HR monitor, whereas RMR and RER were determined by indirect calorimetry.