- Assess the influence of air temperature and humidity on cardiovascular, metabolic, and thermic stress during the 4 days marches in Nijmegen in a representative subpopulation.- Identify internal factors (such as body composition, fluit/food intake…
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
gezonde vrijwilligers
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Heart rate, blood pressure and core temperature are the endpoints used for the
cardiovascular and thermic factors. To assess the metabolic factors,
hematocrit, glucose, proteins and natrium will be determined from blood and
urine samples. These are the most important end points to determine the
physiological stress on the participants during the 4 days marches in Nijmegen.
Secondary outcome
Potential internal and external factors will be examined that possibly
influence the physiological stress during the marches. On the day before the
marches, we determine the most important subject characteristics (weight,
height, blood pressure, fat percentage, drug use, history of health status).
Furthermore, subjects will fill out a questionnaire on each walking day to
monitor changes in clothing and the intake of food and fluids. In addition, in
collaboration with a meteorological organisation, we receive continuous
information regarding air temperature, humidity and air pressure.
Background summary
Walking exercise is a common type of exercise, frequently advised by physicians
to patients as a relatively save and easy to perform exercise mode to maintain
or improve physical fitness. Walking exercise is also one of the most popular
sports activities, emphasized by the large number of marches (1 or more days)
and the numerous participants.
In contrast to marathons, which has been subject for research for several
years, relatively little is known regarding to the cardiovascular, metabolic
and thermic strain during long-distance walking (marches). This information is
crucial to assess the physiological stress during marches and the possible
health risk. Moreover, the influence of external (air temperature, humidity)
and internal factors (fluid intake, food intake, clothing, body composition) on
the physiological responses during marches is completely unknown. The events
during the annual 4 days marches in Nijmegen in 2006, which has led to 2 deaths
on an extremely hot day, emphasize the importance of this information.
Annual registration of these physiological parameters in a subgroup of
participants of the 4 days marches in Nijmegen will result in a database which
will result in better insight into the physiological stress of such marches,
but also to the health risk and the identification of internal and external
risk factors that markedly alter the physiological stress.
Study objective
- Assess the influence of air temperature and humidity on cardiovascular,
metabolic, and thermic stress during the 4 days marches in Nijmegen in a
representative subpopulation.
- Identify internal factors (such as body composition, fluit/food intake,
clothing) that influence the cardiovascular, metabolic, and thermic stress
during the 4 days marches in Nijmegen to result in a good assessment of the
health risk.
Study design
This study represents an observational research. The fortcoming 10 years, a
group of 60 participants of the 4 days marches in Nijmegen will be examined to
finish with a representative subgroup of participants of this march. In
addition, this study design will lead to heterogenuous climate circumstances.
This is necessary to examine the physiological stress during the 4 days marches
in Nijmegen, but also to identify climate circumstances and other possible
factors (internal and external) that may significantly alter the physiological
strain during the 4 days marches.
Study burden and risks
To the best of our knowlegde, no risks are related to the measuring techniques
used in this study.
Geert Grooteplein-noord 21
6525 EZ Nijmegen
NL
Geert Grooteplein-noord 21
6525 EZ Nijmegen
NL
Listed location countries
Age
Inclusion criteria
Participation in the 4 days marches in Nijmegen
Aged 18 or older
Exclusion criteria
There are no exclusioncriteria, similar as the organisation of the 4 days marches in Nijmegen has no exclusioncriteria. If we would include exclusion criteria we cannot extrapolate our findings to the relevant group (participants of the 4 days marches in Nijmegen).
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 | NL18245.091.07 |