2007 Australia Study : a large crossover study to compare the effects on 40K Time Trial performance comparing:
1. High5 EnergySource X’treme and EnergyGel Plus (both with caffeine) as compared to water
2. High5 IsoGel X’treme (with caffeine) as compared to Go Gel from Science in Sport (SiS)
Results:
High5 X’treme and EnergyGel Plus were on average 66 seconds faster over a 40km Time Trial as compared to using water.
Location: The test took place in Centennial park Sydney from January to February 2007. For a map visit:http://maps.google.com/maps?f=q&hl=en&q=australia+bondi+beach&ie=UTF8&z=15&ll=-33.898703,151.237879&spn=0.016706,0.039911&om=1
21 subjects who participated in the test were a mix of experienced competitive cyclists and Ironman Triathletes. The athletes were randomly split into 2 groups defined by coloured bands for each week of the test and each group was given a different product for that week. The following week, drinks were rotated. Independent time trial timing was undertaken and all athletes completed a standard GI questionnaire after each test. Weather was consistent over the duration of the study with data taken from the nearby Sydney weather station. Data was not modified to account for the weather, the preceding weeks training load, diet or other variable. Athletes were only excluded from the test if they reported pre test illness or through mechanical failure. Athletes were also told not to make any changes in bike set-up from one week to the next.
Week 1 and 2: High5 X’treme combined with High5 EnergyGel Plus Compared To Water
Yellow Group - 45 Minutes before the start of the 40km Time Trial, yellow group received: 2 X High Five EnergyGel Plus sachets and 500ml of High5 EnergySource X’treme mixed at 10% concentration (50g of powder mixed into 500ml). During the Time Trial yellow group also received an additional 750ml of X’treme mixed at 6.6% concentration or (50g or powder per 750ml).
Brown Group - 45 Minutes before the start of the 40km Time Trial, brown group received 560ml of flavoured water. During the Time Trial brown group received an additional 750ml of flavoured water. All drinks were completely consumed to ensure the total quantity of liquid was the same. The additional 60ml was to account for the volume of gel consumed.
After a 15 minute warm up, the athletes started the 40km Time Trial. They were asked to push themselves as hard as possible. GI questionnaire were supervised by a qualified nutritionist. Short interviews with each athlete were video taped. The following week the products consumed were swopped and the athletes re-tested.
Week 2 and 3: High5 IsoGel X’treme Vs SiS Go Gel
Brown Group - 45 Minutes before the start of the 40K Time Trial, brown group received 180ml of High5 IsoGel X’treme with 500ml of water. 15 Minutes before the start of the Time Trial the athletes received a further 60ml of IsoGel X’treme and during the Time Trial 750ml of water.
Yellow Group - 45 Minutes before the start of the 40K time trial, yellow group received 180ml of SiS Go Gel with 500ml of water. 15 Minutes before the start of the time trial they received a further 60ml of Go Gel and during the time trial 750ml of water.
After a 15 minute warm up, the athletes started the 40km Time Trial. They were asked to push themselves as hard as possible. GI questionnaire were supervised by a qualified nutritionist. Short interviews with each athlete were videotaped. The following week the products consumed were swopped and the athletes re-tested.
