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Effect of 48 h Fasting on Autonomic Function, Brain Activity, Cognition, and Mood in Amateur Weight Lifters.
- Source :
-
BioMed Research International . 11/29/2016, Vol. 2016, p1-8. 8p. - Publication Year :
- 2016
-
Abstract
- Objectives. The acute fasting-induced cardiovascular autonomic response and its effect on cognition and mood remain debatable. Thus, the main purpose of this study was to estimate the effect of a 48 h, zero-calorie diet on autonomic function, brain activity, cognition, and mood in amateur weight lifters. Methods. Nine participants completed a 48 h, zero-calorie diet program. Cardiovascular autonomic function, resting frontal brain activity, cognitive performance, and mood were evaluated before and after fasting. Results. Fasting decreased (p<0.05) weight, heart rate, and systolic blood pressure, whereas no changes were evident regarding any of the measured heart rate variability indices. Fasting decreased (p<0.05) the concentration of oxygenated hemoglobin and improved (p<0.05) mental flexibility and shifting set, whereas no changes were observed in working memory, visuospatial discrimination, and spatial orientation ability. Fasting also increased (p<0.05) anger, whereas other mood states were not affected by it. Conclusions. 48 h fasting resulted in higher parasympathetic activity and decreased resting frontal brain activity, increased anger, and improved prefrontal-cortex-related cognitive functions, such as mental flexibility and set shifting, in amateur weight lifters. In contrast, hippocampus-related cognitive functions were not affected by it. [ABSTRACT FROM AUTHOR]
- Subjects :
- *AUTONOMIC nervous system physiology
*BRAIN physiology
*AFFECT (Psychology)
*ANGER
*BLOOD pressure
*BODY weight
*CARDIOVASCULAR system physiology
*COGNITION
*STATISTICAL correlation
*ELECTROCARDIOGRAPHY
*FASTING
*FRONTAL lobe
*HEART beat
*HEMOGLOBINS
*HIPPOCAMPUS (Brain)
*NEUROPSYCHOLOGICAL tests
*MEMORY
*NEAR infrared spectroscopy
*PARASYMPATHETIC nervous system
*PROBABILITY theory
*QUESTIONNAIRES
*REACTION time
*T-test (Statistics)
*THOUGHT & thinking
*WEIGHT lifting
*AMATEUR athletes
*VISUAL analog scale
*PRE-tests & post-tests
*DATA analysis software
*DESCRIPTIVE statistics
Subjects
Details
- Language :
- English
- ISSN :
- 23146133
- Volume :
- 2016
- Database :
- Academic Search Index
- Journal :
- BioMed Research International
- Publication Type :
- Academic Journal
- Accession number :
- 119805811
- Full Text :
- https://doi.org/10.1155/2016/1503956