micronutrienten magnesium deficiency
Conditions
Interventions
A rest day and an exercise day
At exercise day: an exercise test of 90 min at 70% of VO2max.
Bloedsamples are taken at set time points during rest day and exercise day
Sponsors
Wageningen Universiteit
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: Age: 18 - 45 y BMI: 18.5 - 25 Minimal of 5 hours of training per week, for at least 2 years Used to bike, at least 5 hours per week in high season No Mg and / or Ca supplementation during study No blood donation, during or in the 6 weeks preliminary the study Suitable veins No chronic medication, with the exception of paracetamol and or birth control No antibiotics in the month preliminary the study Good health Mg intake >420 mg for men and >320 mg for women (estimated with FFQ) Serum Mg > 0.7 mmol/L Willing to give blood Able to be present and participate at all test days
Exclusion criteria
Exclusion criteria: Chronical illness Use of medication with the exception of paracetamol and or birth control Mg and or Ca supplementation use Inadequate Mg intake (according to FFQ) Working at Human Nutrition - Wageningen University Msc thesis or internship at Human Nutrition - Wageningen University Participating in other scientific research (with the exception of EetMeetWeet)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main study parameter is ionized magnesium concentration in serum. | — |
Secondary
| Measure | Time frame |
|---|---|
| Total magnesium concentration in serum The machine also analysis the next parameters in the same sample: Ca2+, pH, pO2, pCO2, hematocrit, Na, K, glucose and lactate. These parameters are also measured and used as outcome measures. There is no extra blood needed and also no extra analysis. | — |
Countries
Netherlands
Outcome results
None listed