Document Detail

Is the post-lunch dip in sprinting performance associated with the timing of food ingestion?
MedLine Citation:
PMID:  9144846     Owner:  NLM     Status:  MEDLINE    
To detect whether the drop in performance around lunch has any direct association with the time of food ingestion, a group of 8 sprinters were studied for 5 consecutive Saturdays. On each testing day, the times achieved during 80 meter sprints performed at eight different times of the day separated by 2 hour intervals were recorded. The 1st and 4th testing days, had identical sleep and mealtime schedules, and were therefore considered "control days", while on the 2nd and 3rd testing days the schedule was brought forward ("advanced") or backward ("delayed") by 2 hours respectively. On the 5th testing day the sleep-wake cycle was brought forward 2 hours without changing the mealtime schedule. A post-lunch dip (PLD) was detected on all testing days although at different times. No significant differences in performance were observed between days 1 and 4 while there were differences in performance during the other testing days. It is worth pointing out that PLD occurred at about 15:00 h on the control days, with significant differences between the 2nd (p < 0.05) and 3rd days (p < 0.05), and with the deterioration in performance starting at 15:00 h on the 3rd day despite the fact that lunch had been served at 16:00 h. In conclusion, PLD does not appear to be directly linked to the time of lunch, although lunch itself could potentiate its effects. It is also worth mentioning the fact that this deteriorating effect does not occur after any other meals of the day.
C Javierre; J L Ventura; R Segura; M Calvo; E Garrido
Related Documents :
24708446 - Comparative assessment of scoring functions on an updated benchmark: ii. evaluation met...
15320676 - The relationship between vertical jump power estimates and weightlifting ability: a fie...
12208296 - Developmental plasticity in aerobic performance in deer mice (peromyscus maniculatus).
24338936 - A powerful association test of multiple genetic variants using a random-effects model.
8807226 - Occupational dermatoses in a swedish aircraft plant.
5645416 - Heat inactivation of enterotoxin a from staphylococcus aureus in veronal buffer.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Revista española de fisiología     Volume:  52     ISSN:  0034-9402     ISO Abbreviation:  Rev. Esp. Fisiol.     Publication Date:  1996 Dec 
Date Detail:
Created Date:  1997-07-03     Completed Date:  1997-07-03     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0404475     Medline TA:  Rev Esp Fisiol     Country:  SPAIN    
Other Details:
Languages:  eng     Pagination:  247-53     Citation Subset:  IM    
Departamento de Ciencias Fisiológicas y de la Nutrición, Facultad de Medicina, Universidad de Barcelona, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Analysis of Variance
Circadian Rhythm
Feeding Behavior / physiology*
Postprandial Period / physiology*
Running / physiology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Changes in the hypothalamic serotonergic function may mediate the endocrine effects of melatonin.
Next Document:  Regulation of energy balance and adiposity: a model with new approaches.