The overall objective is to determine the thermophysiological strain of a 200-km outdoor ice skating race (elfstedentocht). The second objective is to examine the relation between electrolyte-/fluidbalance and the thermoregulation in these…
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
sport-gerelateerde gezondheidsproblemen
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
1) Core body temperature (continuous monitoring)
2) Skin temperature (continuous monitoring)
3) Fluid-intake
4) Blood and urine analysis of electrolytes
Secondary outcome
N/A
Background summary
During outdoor speed skating races, hypothermia is a frequently reported
problem. In addition, also the number of subjects with frozen limbs. To date,
little is known about the impact of an outdoor ice skating race on
thermoregulation. In addition, we also aim at the electrolyte and fluidbalance.
A change in fluidbalance will impact upon the core body temperature. Performing
the Elfstedentocht (200-km) will have a big impact on the fluid and electrolyte
balance, which may cause a decrease of blood flow to the skin and a
deterioration of the aerobic performance level. This could influence the risk
of hypothermia and freezing of limbs.
Study objective
The overall objective is to determine the thermophysiological strain of a
200-km outdoor ice skating race (elfstedentocht).
The second objective is to examine the relation between
electrolyte-/fluidbalance and the thermoregulation in these conditions.
Study design
Observational study
Study burden and risks
Apart from a questionnaire, heart rate monitor and body weight measurements,
all subjects will receive a pill that measures core body temperature. The
latter is a safe, valid and user-friendly method to measure core body
temperature. The burden for the participants is minimal (time as well as
physical), but will lead to important information, necessary for the primary
objective of this study. The Department of Physiology has extensive experience
in all the afore mentioned measurement techniques. Moreover, all these testing
procedures have already been approved in previous studies (CMO-numbers
2007/147, 2007/262 and 2008/227). In addition, before the start en immediately
after the finish, blood (10 ml venous) and urine will be analysed to asses the
fluid and elektrolyte balance. This is a minimal burden for the participants,
while it will lead to important and novel information.
Geert Grooteplein-noord 21
6525 EZ Nijmegen
NL
Geert Grooteplein-noord 21
6525 EZ Nijmegen
NL
Listed location countries
Age
Inclusion criteria
18 year or older
Participant of the Elfstedentocht
Exclusion criteria
All exclusion criteria are related to the use of the temperature pill:
- body weight lower than 36,5 kg
- presence of an obstructive disease of the gastro-intestine. This also includes diverticulosis and inflammatory disease states.
- Operation of the gastro-intestinal tract (excluded; cholecystectomy and appendectomy).
- Magnetic Resonance Imaging (MRI) when the CorTempTM sensor is still in the body.
- pacemaker or any other implanted electronic device
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 | NL26685.091.09 |