Blood metabolites during basketball competitions

Area of Science:

• Sports Science
• Exercise Physiology
• Biochemistry

Background:

• Elite junior basketball involves high-intensity bursts and demands significant physiological exertion.
• Understanding the metabolic and hormonal responses is crucial for optimizing player performance and recovery.

Purpose of the Study:

• To investigate the blood hormonal and metabolite changes in male junior elite basketball players during competitive games.
• To analyze the impact of game intensity and player role on these physiological markers.

Main Methods:

• Blood samples were collected from 38 male junior elite basketball players at the beginning, halftime, and fulltime of 6 games.
• Heart rate was monitored to assess game intensity (93% of maximal HR).
• Concentrations of triglycerides, free fatty acids, plasma glucose, insulin, and cortisol were measured.

Main Results:

• Triglycerides and free fatty acids significantly increased during the game, particularly in the second half.
• Plasma glucose initially rose at halftime but decreased later, while insulin progressively decreased.
• Serum cortisol increased significantly after the first half and remained elevated.
• Postgame triglyceride and free fatty acid levels were lower in guards compared to centers.

Conclusions:

• Basketball game demands induce substantial metabolic and hormonal alterations in players.
• Physiological responses, including heart rate, glycemia, and lipolytic variables, varied between halves and were role-dependent.
• Player position influences metabolic marker changes, suggesting specific adaptations based on role requirements.