Circadian rhythm and performance during a 24-hour relay race.
The performance of two participating teams (ns = 18) in a 24-hr. relay race was analysed. The performance of both teams showed a clear decline during the course of the competition; however, the expected circadian variation of performance could only be found for one team. This finding may be attributable to the different levels of fitness of the two teams. Considerable interindividual differences were found with regards to the course of performance.
Krombholz
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State Institute of Early Childhood Education and Family Research, Munich, Federal Republic of Germany.
D000328:Adult; D001143:Arousal; D002940:Circadian Rhythm; D006801:Humans; D008875:Middle Aged; D010807:Physical Endurance; D012420:Running