To evaluate the influence of personal control systems on thermal comfort, physiology and cognitive performance in moderately drifting temperatures.
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
thermal comfort and metabolic health
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Differences in thermal sensation, comfort, acceptance between the two
conditions.
Secondary outcome
To investigate the influence of a personal control system in moderate
temperature drift on energy metabolism, thermophysiological, and cardiovascular
parameters.
To investigate the influence of a personal control system in moderate
temperature drift on the air quality perception and cognitive task performance.
To investigate the underlying relation of control behavior and physiological
and psychological parameters.
To investigate the effect of thermal comfort and sensation on visual comfort
and perception
Background summary
In order to fulfil the demand of thermal comfort, current environmental design
practise narrows the temperature into a small range. Less strict, dynamic,
indoor conditions, however, pave the way to increased energy efficiency in
buildings. Moreover, excursions outside the thermal comfort range have been
proven beneficial for metabolic health. Under drifting (dynamic) thermal
conditions such exposures to mild cold or heat may be perceived as acceptable,
but significant individual differences are evident. Acceptance of a drifting
indoor temperature can potentially be extended using a personal control system.
Study objective
To evaluate the influence of personal control systems on thermal comfort,
physiology and cognitive performance in moderately drifting temperatures.
Study design
This experiment has a cross-over design consisting of two conditions which will
be conducted in two separate days. The control condition consists of a drifting
temperature without a personal temperature control system and the other
condition is a drifting temperature with a personal temperature control system.
Measurements include thermal perception, body temperature, energy expenditure,
blood perfusion, cardiovascular parameters, control behavior and cognitive
performance.
Intervention
Participants will be exposed to a temperature drift ranging from 17 * to 25 *
either with a personal control system or without a personal control system.
When a personal control system is introduced, participants are allowed to
freely control the equipment including a heating chair, a heating desk and a
feet warmer.
Study burden and risks
This study carries no benefits for the subjects. It is not a therapeutic
research and carries minor risks for the subjects. The major burdens consist of
recurrent study visits, a moderate time commitment and exposure to warmer and
cooler environments than usual. Subjects will reside within the respiratory
research units of the MRUM and are not allowed to leave the room throughout the
measurements. Furthermore, subjects are asked to regulate their eating and
exercise habits one day before each measurement day of the study to limit
external influences on the measurement of energy expenditure. This may be a
small social and psychological burden.
The study will lead to novel insights into the influence of personal control
systems and various health-related parameters such as blood pressure, heart
rate and energy expenditure.
Universiteitssingel 50
Maastricht 6229ER
NL
Universiteitssingel 50
Maastricht 6229ER
NL
Listed location countries
Age
Inclusion criteria
Caucasian race
Age 18-40 years
BMI between 18 and 27.5 kg/m2
Non-smoking
Steady dietary habits
Generally healthy, no medication use that interferes with metabolism.
Female participant who using Microgynon 30 or levonorgestrel/ehinylestradiol
Normal chronotype
Exclusion criteria
Cardiac problems and cardiovascular diseases, such as angina pectoris, cardiac
infarction and arrhythmias Any medical condition requiring treatment and/or
medication that might interfere with
the investigated parameters.
Unstable body weight (weight gain or loss >3kg in the past month)
Participation in another biomedical study within 1 month prior to the screening
visit
Participants, who do not want to be informed about unexpected medical findings,
or do not wish that their treating physician will be informed, cannot
participate in this study
Presence of Raynaud's phenomenon
Jet lag or night shift work in the past 2 months
Color blindness
Participants who have undergone an operation on the gastrointestinal system in
the past
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL69769.068.19 |
| Other | NL7757 |