Dehydration
Conditions
Brief summary
Dehydration is a common phenomenon in judo that can lead to negative performance such as a decline in strength, a decline in anaerobic performance, a reduced body fluid balance, glycogen depletion and worsened psychological parameters. Therefore, we want to simulate several judo combats and look at the performances whether they change during a competition day. We also want to see if the results are different in a dehydrated versus euhydrated state.
Interventions
OTHERDehydration
Participants will be dehydrated (2% of their body weight) using sauna.
Sponsors
Vrije Universiteit Brussel
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* judoka * minimum 18 years * men and women * only dehydration: sauna, warm bath, sweat suit
Exclusion criteria
* injured * sick * not underaged (18 years)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Sterkowicz test | Up to 3 weeks | Sterkowicz test |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| heart rate | Up to 3 weeks | Heart rate will be determined using the Polar H1 (Polar, Kempele, Finland) |
| Body weight | Up to 3 weeks | Body weight will be assessed to the nearest 0.002 kg using the WLT 60/120/X/L3 scale (All Scales Europe, Veen, The Netherlands) |
| Borg Rating of Perceived Exertion Scale | Up to 3 weeks | The Borg Rating of Perceived Exertion scale is a numerical scale (to determine exertion) that ranges from 6 to 20, where 6 means no exertion at all and 20 means maximal exertion. |
| body temperature | Up to 3 weeks | Body temperature will be determined using the Adtemp 421 Digital Ear Thermometer (American Diagnostics Corporations, Hauppauge, New York, United States of America) |
Outcome results
None listed