Carbohydrate Fatigue: A Case Study
The aim of the experiment is to investigate the effects of carbohydrate receptors in the mouth on exercise performance during a simulated time trial.
Energy is required in the body for metabolic processes, physiological functions, muscular activity, heat production, growth and synthesis of new tissues. Carbohydrates have been researched and studied for centuries and are commonly viewed as a substrate for fuel metabolism, associated with many other energy-demanding processes.
There has been extensive research on the ergogenic effect of carbohydrate ingestion during endurance exercise, (Jeukendrup, 2004) as some studies suggest that the main contributors to fatigue during endurance exercise are dehydration and carbohydrate depletion (Jeukendrup, 2011). …show more content…
(2002) suggest that carbohydrate ingestion before and during exercise is proposed to aid in sustaining optimal functioning of the central nervous system and help enhance perceptual responses.
Duckworth et al. (2013) suggest that CHO ingestion prevents the development of a hypoglycaemic state via the maintenance of blood glucose levels. This, in effect, ensures activation of the reward areas in the brain such as the frontal operculum, orbitofrontal cortex and striatum. Therefore, it is suggested that this lowers the perception of exertion during exercise and possibly reduce the feeling of displeasure and discomfort (Thays de Ataide e Silva et al., 2013). As a result, the onset of fatigue is delayed and exercise performance is in fact enhanced.
The magnitude of performance improvements following CHO ingestion can therefore be explained by the maintenance of blood glucose levels, in addition to increased CHO oxidation rates (Jeukendrup, 2004) and the sparing of muscle glycogen which in turn optimizes glycogen stores and delays muscle glycogen depletion (Coyle et al.,
Energy is required in the body for metabolic processes, physiological functions, muscular activity, heat production, growth and synthesis of new tissues. Carbohydrates have been researched and studied for centuries and are commonly viewed as a substrate for fuel metabolism, associated with many other energy-demanding processes.
There has been extensive research on the ergogenic effect of carbohydrate ingestion during endurance exercise, (Jeukendrup, 2004) as some studies suggest that the main contributors to fatigue during endurance exercise are dehydration and carbohydrate depletion (Jeukendrup, 2011). …show more content…
(2002) suggest that carbohydrate ingestion before and during exercise is proposed to aid in sustaining optimal functioning of the central nervous system and help enhance perceptual responses.
Duckworth et al. (2013) suggest that CHO ingestion prevents the development of a hypoglycaemic state via the maintenance of blood glucose levels. This, in effect, ensures activation of the reward areas in the brain such as the frontal operculum, orbitofrontal cortex and striatum. Therefore, it is suggested that this lowers the perception of exertion during exercise and possibly reduce the feeling of displeasure and discomfort (Thays de Ataide e Silva et al., 2013). As a result, the onset of fatigue is delayed and exercise performance is in fact enhanced.
The magnitude of performance improvements following CHO ingestion can therefore be explained by the maintenance of blood glucose levels, in addition to increased CHO oxidation rates (Jeukendrup, 2004) and the sparing of muscle glycogen which in turn optimizes glycogen stores and delays muscle glycogen depletion (Coyle et al.,