Participants needed: healthy females for a study on B-vitamins and health

Published on
September 30, 2019

We are looking for healthy females between 18-28 years old that exercise often (>3 times a week) or not so often.

What do you have to do?

  • Visit the university for a screening day and an exercise test (2 hrs)
  • After inclusion in the study, visit the university on two consecutive days for a study day
  • 1x for blood samples, muscle tests using near-infrared light and short occlusions of the blood flow, and an exercise test (4 hrs)
  • 1x (0.5 hr) for blood samples
  • Collect your urine for 1 day
  • Wear a small motion detector during the period between the two study days
  • Make small adjustments in your dietary- and physical activity pattern the day before and during the study days

You are eligible for participation if you:

  • Are healthy
  • Have a body mass index (BMI) between 18.5 – 25
  • Are not pregnant, not lactating and are not using hormonal contraceptive medications (with the exception of the birth control pill)
  • Do not smoke regularly (>5 cigarettes per week)
  • Do not use drugs and smoke during the study
  • Do not follow a veganistic lifestyle (i.e. exclude the consumption of animal- or animal-derived food products);
  • Do not have a (sports)injury that hampers your physical performance;
  • Did not recently used (<4 months) sport supplements (e.g. EPO or anabolic drugs)
  • Are not consuming food supplements containing B-vitamins on a daily basis (e.g. multivitamins, B-vitamin complexes)
  • Did not recently (<2 months) donate a large volume of blood
  • Do not participate in other clinical trials during the study period

What do you get?

  • You will contribute to the knowledge about B-vitamins and health
  • A financial compensation of €75
  • Knowledge about your own endurance performance


October 2019 – December 2019