The aim of the study is to investigate the effects on time trial / cycle test performance after ingestion of Snelle Jelle 'kruidkoek' and water, banana and water, or only water.
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
n.v.t.
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Cycle test (time trial) performance (time to completion of a set workload)
after consumption of the test products (Snelle Jelle 'kruidkoek' or banana with
water, or only water).
Secondary outcome
N/A
Background summary
Differences in food structure, nutrient composition and in available
carbohydrate (CHOs) in foods lead to differences in the post-consumption
glucose supply and consequently have an impact on the glycaemic response.
Various studies have shown that the intake of carbohydrates shortly before the
onset of exercise and subsequently during exercise, impact favorably on blood
glucose and fatty acid levels, leading to a reduction of fatigue development
and a higher power output/improved performance capacity towards the final stage
of the exercise. This effect is especially favored by endurance performance
athletes such as cyclists and triathletes.
Accordingly, in order to support endurance performance capacity, as well as
immediate post exercise recovery of glycogen stores, endurance athletes ingest
energy drinks and foods that supply rapidly available carbohydrates.
Many studies have been performed on the effect of carbohydrate drinks on
exercise induced glucose oxidation rates whereas the impact of solid
carbohydrate rich foods commonly consumed, such as banana, bars and cakes has
been studied much less.
In the present study we address the effect of 2 types of food frequently
consumed by endurance athletes in the Netherlands 1) banana, 2) kruidkoek
Study objective
The aim of the study is to investigate the effects on time trial / cycle test
performance after ingestion of Snelle Jelle 'kruidkoek' and water, banana and
water, or only water.
Study design
The current study will be executed conform a randomized, cross-over,
reference-controlled, study design. During the test days a cycle test (time
trial) of about 1 hour will be performed. Consumption of test products
('kruidkoek' or banana with water, or only water) will take place 15 min before
(during warming up; 70 grams banana/kruidkoek) and 15-20 after (30 grams
banana/kruidkoek) starting the time trial.
Intervention
Participants will perform the time trial under different conditions (conditions
will be assigned at random):
1. Participants will receive a Snelle Jelle ('kruidkoek') and water before and
during the time trial
2. Participants will receive a banana and water before and during the time trial
3. Participants will only receive water before and during the time trial (=
control)
The effects of these interventions on time trial performance will be measured.
Study burden and risks
There are no risks associated with the current study. The burden associated
with participation is minimal, participants will have to be at the department
of Human Biology for a total of 8-9 hours during the course of the study.
Universiteitssingel 50
Maastricht 6229 ER
NL
Universiteitssingel 50
Maastricht 6229 ER
NL
Listed location countries
Age
Inclusion criteria
• Males
• Aged 18-50 years
• Blood pressure: diastolic blood pressure between 60 and 90 mmHg and a systolic
blood pressure between 100 and 150 mmHg
• Body Mass Index (BMI; weight/length2) between 18 and 25 kg/m2
• Protein and glucose are not allowed to be present in urine that will be collected
during screening.
• Subjects have to be healthy (self reported) and are not allowed to use medication
that can interfere with the current study.
• Normal Dutch dietary eating habits (no vegan, vegetarian or macrobiotic lifestyle)
• Participants must be trained cyclists / triathletes and be in possession of a positive sports examination or a competition licence.
Exclusion criteria
• Having a history of medical or surgical events that may significantly affect the
study outcome (gastro-intestinal diseases)
• Any current metabolic or endocrine disease
• Diabetes Mellitus (type I and II)
• More than 28 consumptions of alcohol a week (for men) and more than 21 consumptions of alcohol a week (for women)
• Reported intolerance for gluten
• Having regularly gastro-intestinal complaints (stomach upsets, diarrhea, constipation, wind, abdominal colic)
• Reported unexplained weight loss or gain of >2kg in the month prior to the pre-study screening
• Reported slimming or medically prescribed diet
• Reported vegan, vegetarian or macrobiotic lifestyle
• Use of antibiotics during the last three months;• The subject will be excluded from the study if he does not want to be informed about deviating findings / accidental findings concerning his health
• The following drugs are not allowed during the study:
1. Anti-hypertensive drugs
2. Lipid lowering-drugs
3. Glucose-lowering agents.
4. Anti-inflammatory agents
5. Chronic oral or parenteral corticosteroids treatment (> 7 consecutive days of treatment).
6. Laxatives or anti-diarrhea drugs
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
In other registers
| Register | ID |
|---|---|
| Other | het onderzoek/protocol is bij NTR aangemeld voor registratie, we hebben nog geen NTR nummer ontvangen, zodra we dit ontvangen brengen we jullie ervan op de hoogte |
| CCMO | NL45723.068.13 |
| OMON | NL-OMON25233 |