Circadian rhythm and performance during a 24-hour relay race

Area of Science:

• Sports Science
• Human Performance Analysis

Background:

• Endurance events like 24-hour relay races present unique physiological challenges.
• Understanding performance fluctuations over extended durations is crucial for optimizing athletic strategies.

Purpose of the Study:

• To analyze the performance trends of two teams during a 24-hour relay race.
• To investigate the presence of circadian variations in performance within an endurance competition.
• To explore factors influencing performance decline and interindividual differences.

Main Methods:

• Performance data from 18 participants across two teams in a 24-hour relay race was collected and analyzed.
• Statistical methods were employed to identify performance decline and circadian rhythms.

Main Results:

• Both teams exhibited a significant decline in performance throughout the 24-hour race.
• Circadian variation in performance was evident in only one of the two teams.
• Substantial interindividual differences in performance trajectories were observed among participants.

Conclusions:

• Fitness levels may influence the manifestation of circadian rhythms in endurance performance.
• Performance decrements and individual variability are key characteristics of prolonged athletic events.
• Further research into physiological and psychological factors affecting endurance performance is warranted.