Carbohydrate feeding prior to and during high-intensity exercise and its effect on endurance performance in trained adolescents (14-16 years)
University of Wales Institute Cardiff
MetadataShow full item record
The current study investigated the effects of feeding a CHO solution, prior to and during performance, on cycle time-trial performance under thermoneutral conditions, in adolescent athletes. 4 male and 6 female adolescent (15.7 ± 1.6 years) cyclists undertook a 45 minute self-paced time-trial on 2 separate occasions, 1 where only water was fed and 1 with ingestion of a CHO solution. During the no CHO trial, participants were given a 5 min period to drink water ad lib. at 10 minute intervals. During the CHO trial, 5 mins after consuming a bolus of 6 ml . kg BM of a 6.4% CHO solution and immediately following a warm up, the participants undertook the self-paced time-trial. During the exercise period distance (km) power output (PO, W) and heart rate (HR, bpm-1) were monitored and recorded every 5 mins. The major findings of the study demonstrated that there were no significant differences in the performance between the 2 treatments. The overall effect of the treatment proved to not be significant (P > 0.05) for the total average distance (23.84 ± 5.99 and 24.88 ± 7.13), PO (172.8 ±201.2 and 183.93 ± 190.07 W) and HR (163.74 ± 28.26 and 168.16 ± 23.84 bpm-1, no CHO and CHO respectively). However, the results did show that there was a significant time effect in that distance achieved, PO and HR were all significantly higher in the last 5 min bout when compared to the preceding bouts for both of the treatment conditions.
Showing items related by title, author, subject and abstract.
Comparison of substrate use in high intensity versus low intensity exercise in moderately trained females Foley, Christina (University of Wales Institute Cardiff, 2006)The study investigated whether low- intensity or high-intensity exercise would be the most effective mode of exercise intensity for body mass reduction. Eight moderately trained female subjects (mean ± SD; age, height, ...
Stockdale, Ben (University of Wales, 2011)Traditionally, during cycling different pacing strategies are enforced for different length time trials. These pacing strategies require different physiological responses from the performers. The aim of this study is to ...
Penny, Blake (Cardiff Metropolitan University, 2015)A muscle’s ability to generate force and velocity is determined by several components which are a consequence of its contractile history; however, this has been shown to be acutely yet significantly influenced following ...