The objective of this study to investigate the role of attention on the effect of NB on ad libitum intake.
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
obesitas
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
• Ad libitum intake in grams
Secondary outcome
• NB, bite frequency and bite size in the *Free* condition
• Estimated amount consumed in grams (explained in section 5.3.2 of the
protocol).
• Appetite ratings (i.e., pleasantness, desire-to-eat, hunger, fullness,
prospective consumption and thirst) before and after ad libitum intake.
Background summary
We showed recently that the number of bites (NB) is important in satiation. A
relative higher NB (three bites of 5 g vs. one bite of 15 g) resulted in ~22%
lower food intake. It is not clear why NB affects satiation. It is possible
that a relatively higher NB make people belief that they consume more, which
triggers a faster satiation. If this would be the case, than cognition and
memory may be important for the effect of NB on satiation. Distraction during
consumption impairs memory and cognition, therefore, the state of attention may
play a role in the effect of NB on satiation.
Study objective
The objective of this study to investigate the role of attention on the effect
of NB on ad libitum intake.
Study design
A 3x2 cross-over intervention study. A low NB condition (LNB), a high NB
condition (HNB) and a free NB condition (Free) will be presented in an
attentive and distractive state. Bites and intervals are administered and
controlled by a pump.
In the primary objective, the effect of NB will be investigated in a controlled
design were only the NB will be varied in both an attentive and distractive
state (see figure 1, *LNB and HNB* conditions).
The secondary objective aims to investigate whether a distractive state will
actually lead to an increased NB (and also bite frequency and bite size) in a
*Free* condition (see figure 1, *Free* condition).
See section 3 of the protocol for further explanation.
Intervention
To investigate the role of attention on the effect of NB on ad libitum intake
(primary objective), the difference in ad libitum intakes of the *LNB-D* - *HNB-
D* (index) will be compared with the difference in ad libitum intake of the
*LNB-A* - *HNB-A* conditions (reference) .
To investigate whether attention influences the NB, bite frequency, bite size
and ad libitum intake (secondary objective), these measurements will be
compared between the *Free-D* state vs. the *Free-A* condition.
Study burden and risks
The study is non-therapeutic to the subjects. The risk associated with
participation is negligble and compared to other studies the burden can be
considered low.
Bomenweg 2
6703 HD Wageningen
NL
Bomenweg 2
6703 HD Wageningen
NL
Listed location countries
Age
Inclusion criteria
men
non-smoking
age: 18-35 year
healthy (as jugded by the participant)
BMI between 18.5 - 25 kg/m2
Exclusion criteria
a score of <5 at a 9-point pleasantness scale for tomato soup
difficulties with swallowing
following diets during last two month
restaint eating behaviour
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 |
|---|---|
| CCMO | NL36277.081.11 |
| OMON | NL-OMON29110 |